In this Issue - Autoscan · 2006-05-31 · the fission-track method. Raymond carried out his Ph.D-work on methodical problems of fission-track dating during 1980-1985, which was about

Editor: Richard Spikings Geologisches Institut, Sonneggstrasse 5,ETH-Zentrum, CH-8092 Zürich, Switzerland

([email protected])

In this Issue: ● Editor's Notes

● Short Tracks: News

● New Uranium Glass Reference Materials for FT Dating: In Preparation byPeter van den hauteandFrans De Corte● Irradiation of samples for FT analysis in the THETIS reactor of the University of Gent (Belgium) byFrans De Corteand Peter Van den haute● Some Thoughts on Inverse Modeling and Length and Kinetic Calibration by Rich Ketcham

● How many track lengths do we need? by Meinert Rahnand Diane Seward

● FT2000 - Congratulations to the organizers and comments on the way forward by Kerry Hegarty

● Fission-Track Papers published during 1997 - 2000

● 2000 Directory of the International Fission-Track Community

● International Symposium of Sedimentologists Meeting

● And finally........

On Track is a biannual newsletter of the international fission-track community. Issues are updated in the months of Juneand December. The views expressed in On Track are those of the authors and do not necessarily reflect those of thefission-track community or the editor(s) of On Track.

Copyrights of by-lined articles belong to the authors and they may not be reproduced without written permission from theauthors. Trademarks and patents are the sole property of the corporation(s) and/or individual(s) indicated in the article.

On Track has now been transfered to the WWW and the circulation of hard copies is restricted to those laboratories thathave limited WWW access. Therefore, On Track will remain free, at least for the near future.

Standard prices for full, half, and quarter page advertisements are US$ 200, US$ 100 and US$ 50, respectively. There isno charge for "short" ads by non-commercial entities (e.g., universities). Send inquiries concerning On Track to the editor.

OnTrack.htm

file:///Spikings HD/OnTrack/ontrack 20/OnTrackpdf (1 of 39) [6/7/2000 1:43:21 PM]

mailto: [email protected]

PREVIOUS EDITORS:Dave Coyle (1990-91), La Trobe UniversityTrevor Dumitru (1991-92), Stanford UniversityRasoul Sorkhabi (1992-93)Arizona State UniversityDennis Arne (1993-94) Dalhousie UniversityRichard J. Weiland (1994-95) U of Texas, AustinRuth Siddall (1995-96) University College LondonDanny Stockli (1996-97) Stanford UniversityPaul O'Sullivan (1997-98) La Trobe UniversityAlexander Grist (1998-99) Dalhousie University

CURRENT EDITOR:Richard SpikingsGeologisches InstitutETH-ZentrumCH-8092 ZürichSwitzerlandTel. ++ 41 (0)1-632-3636Fax. ++ 41 (0)1-632-1080E-mail: [email protected]

Editor’s Notes

I would like to begin the 20th issue of On Track by thanking all the contributors of articles, updatedpublication lists and news items, without your contributions this screen would be rather blank andhopefully less interesting. As this is the last issue that I will prepare, I believe that it's worth saying forthe benefit of future editors that taking 'control' of On Track shouldn't be a daunting, knee-knockingthought. Vouching for myself, I can honestly say that it has been thoroughly satisfying, principallybecause it provided me with the opportunity to become more familiar with individual research groups andgenerated a considerable amount of email based discussion regarding the printed articles. Theadvantages far outweigh the disadvantages (all the html, MSword templates are in place so it's a fairlyrapid process to put the issue together) and I would encourage future postgraduates and postdoctoralfellows to seriously consider taking editorship on! Being busy isn't a good reason not to do it, we're allbusy..... This is an appropriate time to express thanks to Diane Seward and Wilfried Winkler who allotedme time to cope with On Track and Geoffrey Ruiz deserves praise for lending his www skills.

It gives me great pleasure to introduce Dr. Raymond Jonckheere (Germany) who has accepted theposition of On Track editor for issues 21 and 22. Raymond obtained his first degree in constructionalengineeing from one of the Engineering High schools of Flanders in 1979. Although this is prehistory,Raymond points out that it is relevant to his present work in that it taught him [1] more maths than is goodfor a geologist, and [2] that things don't work when they collapse no matter how beautiful they are.

In 1985 he obtained his masters [otherwise referred to as the European Licentiate, which is or is notequivalent to a masters degree depending on your point of view] in geology, from the University of Gent.His first contact with fission tracks was through an unmemorable masters thesis, dating samples from anintrusive complex on the eastern shoulder of the western branch of the East-African Rift [Burundi].T[t]-path modelling had not yet been invented, and length measurements had just become routine toestablish weather or not the ages had been partially reset. Peter Van den Haute introduced Raymond tothe fission-track method.

Raymond carried out his Ph.D-work on methodical problems of fission-track dating during 1980-1985,which was about the time that the φ/λf problem had come to a head, and ζ had been introduced as asolution but was not yet in general use. So, while many groups chased ζ, he crept towards an absolutedating method. Raymond suggests that he may have reached that goal, claiming modest contributions to

OnTrack.htm



the problems of track revelation, absolute neutron fluence measurements [heavily relying on the expertiseof Frans De Corte], factors affecting length measurement of surface tracks and the track countingefficiency. Other contributions made by Raymond include the systematic errors related to track lengthdeficit and exact absolute measurements of the U-concentration. Numerous non-academic reasons,including compulsory military service, repeatedly interrupted his academic research.

Raymond commenced a post-doc at the Laboratory for Nuclear Microanalyses in 1991, led by AlainChambaudet. After an unsuccessful attempt to date samples for the oil firm Total, he developed one ofthe earlier thermal history programs, originally called "Thermal history", which no-one has ever heard ofand is now justly relegated to history in view of the more recent and better software. Following thisposting Raymond returned to Gent to write his thesis, which after many further delays was submitted in1995.

Raymond obtained a two-year Marie-Curie fellowship from the European Community in 1996 to study thethermal stability of fission tracks in titanite at the Max-Planck Institute for Nuclear physics under thesupervision of Günther Wagner. In 1997, he was appointed as the administrator of the particle-trackdating lab, (following on from Dave Coyle).

Since that time, Raymond has taken an active but unofficial interest in recoil-track dating, through one ofthose exceptionally stimulating collaborations with Kurshad Gögen, who actually developed the method.In 1998, Günther invited him to stay and work on a successor project to the KTB. The project is related tothe International Continental Drilling Program [ICDP] and involves dating samples from the 2000 kmQinling-Dabie-Sulu Orogen in east central China, including samples from the 5 km borehole nearDonghai. Raymond, together with scientists from the ion accelerator in Darmstadt, has developed aspecific interest in boreholes and methodical research.

Thanks for taking the time to read this issue. If you have any suggestions on how to improve any aspectof On Track then please don’t hesitate to contact Raymond! I wish you all a hot summer ......or aski-packed winter.

In this issue of On Track scientific contributions start with two articles from Peter van den haute andFrans De Corte of the Belgium based group who tell us about new glass reference materials and detailsconcerning sample irradiation at the Thetis reactor at Gent University. This is followd by an article fromRich Ketcham who shares some of his thoughts with us regarding inverse modelling and length andkinetic calibration. Meinert Rahn and Diane Seward follow on and ask how many track lengths do wereally need to measure? These articles are followed by a list of fission-Track publications that wereprinted during 1997 - 1999 (and have not been listed in previous On Track issues). Several ‘in press’manuscripts with predicted publication dates are also listed.

Short Tracks: News

Massimiliano Zattin from the University of Bologna, Italy, wrote to inform us about some newsconcerning the Italian fission-track group. The group organized an informal workshop for mainly europeanresearchers in Chatillon (Aosta Valley, Italy), July 1999 . The extended abstracts are now published in aspecial volume of the "Memorie di Scienze Geologiche" [S. Martin S. & R. Polino (eds.), 1999, Fissiontrack analysis: theory and applications, Mem. Sci. Geol., 51/2, 431-515). The special volume alsoincludes the keynote lecture by T. Hurford ("The real plus and minus of FT Analysis") and a field tripguide, which illustrates the tectonic evolution of the western Alps. The volume has been sent to all theparticipants and can be requested from: Silvana Martin, Dipartimento di Geologia, Paleontologia e

OnTrack.htm


Geofisica, Universita' di Padova, Via Giotto 1, 35100 - Padova (Italy), e-mail: [email protected].

Dave Coyle (Tensor Information Systems, North Carolina and ex La Trobe Uni') would like to inform usthat he has been promoted to Regional Manager, which makes him responsible for everything east of theMississippi River (including everything over the international dateline: Europe, Australia and Asia...). Hisupdated work address is listed in the directory. Dave also tells us that Tensor are hiring! Computer skillsare requested (Java, Webobjects, etc..), and good problem solving skills are a must.....everyone iswelcome to drop and see him anytime.

Some news also from a former editor of On Track, Danny Stockli, who wrote to inform us about hisrapidly changing world. Last fall, Danny finished his Ph.D. at Stanford University, working on the timing offaulting in the northern Basin and Range Province using fission track, (U-Th)/He, and Ar/Ar dating underthe tutelage of Trevor Dumitru and Elizabeth Miller. He is currently a post-doctoral researcher at theCalifornia Institute of Technology in Pasadena where he is working in the lab of Ken Farley on severalregional studies (Basin and Range, Colorado Plateau, southern Tibet, Iran etc.) and the furtherdevelopment and application of the (U-Th)/He thermochronometer. Recently, Danny has decided to leavethe sunny beaches of southern California next year and accept a faculty position in thermochronologyand tectonics at the University of Kansas. He will be setting up his own thermochronology lab, incl. fissiontrack and (U-Th/He) facilities in Lawrence, Kansas starting in the summer of 2001. He would also like tospread the word that he will be looking for enthusiastic graduate students in the fields ofthermochronology and tectonics to work with him ([email protected]). More news will certainlyfollow, although there’s probably little hope that FT 2008 will be held in Kansas.

Giulio Viola has completed his Ph.D thesis titled "Kinematics and timing of the Periadriatic Fault Systemin the Giudicarie region (central-eastern Alps)" under the supervision of Diane Seward and NeilMancktelow at the ETH-Zürich. The project involved combining structural geology with zircon and apatitefission-track analyses in order to unravel the Neogene tectonic evolution of the Periadriatic Fault Systemin the central-eastern Alps. Giulio has accepted a lectureship in Structural Geology in the Department ofGeological Sciences at the University of Cape Town in South Africa (ed. better take a flak jacket Giulio).

Rasoul Sorkhabi would like to inform us that during the Annual Meeting of the Geological Society ofAmerica, Denver (27th October, 1999) there was a Topical Session entitled, "Dates of Faults and Ratesof Deformation". The conveners of this session were Rasoul Sorkhabi and Ramon Arrowsmith. A totalof 15 oral presentations were made in this half-a-day session. For details see 1999 GSA Annual MeetingAbstracts with Programs, p. A300-A303.

John Garver wrote to tell us that since 1993, Garver and Brandon have been working on the tectonicevolution of Kamchataka (Russia) and refunding from the NSF assures another 2 field seasons. Recently the research effort has been aided by visits to Union College of Alexie Soloviev who is aresearcher and Deputy Director of the Institute of the Lithosphere of Marginal Seas in Moscow (part of theRussian Academy of Sciences). Alexie visited Union College in 1998-99 for six months to learnfission-track dating and for two months in 2000. Trough FT analysis of detrital zircon in volcanic-derivedsandstones has demonstrated that the collision of the Olutorsky terrane (a far-traveled Cretaceous islandarc terrane) collided with the northeast Asian margin in the Eocene. Previous studies put this collisionsometime between the Cretaceous and the Miocene. Garver and Brandon have just been refunded fromthe office of Polar Programs to continue work on the tectonic evolution of Kamchatka. This grant is aimedat determining the timing of the plate reconfiguration that led to the isolation of the Bering Sea and theestablishment of the Aleutians.

Matthias Bernet informs us that the Yale -Union College fission-track group is continuing their study onthe long term exhumational history of the European Alps, using fission-track analysis of detrital zircon.Field work this year will help to complete the sample set from the French Alpine foreland basin and the

OnTrack.htm




Italian hinterland basin, including modern river samples as well as samples from the stratigraphic recordfrom Oligocene onwards. Matthias Bernet will also use the opportunity to meet the fission-track group atthe University of Bologna during this field season.

Amanjit Sandhu tells us that he has moved to Canada and is now working at the University of Toronto,Canada, with Prof John Westgate. His new contact details are presented in the directory.

Sadly, Chuck Naeser wrote to inform us of the death of Robert A. Zimmerman who lost his fight withcancer on March 2nd, 2000. At the time of his death, he was 51 years old. Bob was one of the earlyworkers in fission-track analysis. He started his career in fission-track analysis as an undergraduate withDon Miller at Rensselaer Polytechnic Institute in Troy, New York. After graduating from RPI in 1970, hetaught high school science in Glen Head, New York, for a year. In 1971 Bob began working on hisPh.D. at the University of Pennsylvania. There he conducted research under the supervision of HenryFaul on the annealing of apatite and the post-Cretaceous thermal history of the eastern United States.After obtaining his Ph.D. in 1977, Bob began a long career with the U.S. Geological Survey in Denver,Colorado where he continued thermochronological studies. He conducted additional analyses in theeastern United States, and began working on the thermal history of the Midcontinent. During his careerwith the USGS he also provided fission-track analyses for many geologists throughout the Survey. Uponleaving the USGS in 1995, Bob became a research geologist at the Colorado School of Mines in Golden,Colorado.

New Uranium Glass Reference Materials for Fission-Track Dating:in preparation.

by Peter Van den hauteand Frans De CorteGeologisch Instituut, Rijiks Universiteit, B-9000 Gent, Belgium, Tel: +32-0-9-264/4592 or 6627, Fax:

+32-0-9-264-4984 E-mail: [email protected]

Due to the success of the IRMM-540 uranium doped glass [1] issued in 1996 by the EuropeanCommission, two additional reference glasses for use in fission- track dating containing 15 and 55 ppmuranium respectively (nominal concentrations) are now being produced. The 15 ppm U glass can beregarded as the successor of IRMM-540 whilst the 55ppm glass will allow irradiations with lower neutronfluences and should therefore be more suitable for dating high uranium minerals such as zircon.

The production of the new glasses is a joint project of the JRC-Institute for Reference Materials andMeasurements of the European Commission, the Institute for Nuclear Sciences and the GeologicalInstitute of Gent University (Belgium) and Philips Display Components, BTG Special Products (TheNetherlands).

A new and more reproducible method was developed for the casting of uranium-doped glasses, avoidingmicro-scale defects. Uranium mass fractions will be certified by ICP/MS, EDXRF and TI/IDMS from sixindependent laboratories. At the time of writing this announcement, the uranium homogeneity is beingverified by track density measurements on neutron irradiated samples.

The new glasses will be distributed as certified reference materials (CRMs) and will be available as setsof three discs, including one disc (and a co-irradiated mica foil), irradiated with a certified neutron fluence,calibrated with Au and Co metal monitors. So, ζ-users, absolute approachers or Q-users can use theglass and compare their calibration systems if they want to.

OnTrack.htm



If you are further interested in these glasses or in the IRMM-540 (13.9 ± 0.5ppm U), which is stillavailable, just contact Chris Ingelbrecht at the European Commission, Joint Research Centre, Institute forReference Materials and Measurements, Retieseweg, 2440 Geel, Belgium([email protected]).

[1]. F. De Corte, F. Bellemans, P. Van den haute, C. Ingelbrecht, C. Nicholl, A new U doped glasscertified by the European Commission for the calibration of fission-track dating, in: Advances inFission-Track Geochronology (P Van den haute and F. De Corte, editors), Kluwer Academic Publishers,Dordrecht (1998) 67-78.

Irradiation of samples for FT analysisin the THETIS reactor of the University of Gent (Belgium)

by Frans De Corte and Peter Van den hauteGeologisch Instituut, Rijiks Universiteit

B-9000 Gent, Belgium, Tel: +32-0-9-264/4592 or 6627, Fax: +32-0-9-264-4984 E-mail: [email protected]

During the last years we have irradiated FT samples for a variety of foreign labs in our THETIS reactorand occasionally we are still contacted by (mainly European) investigators who are looking for a suitableirradiation facility or who, for some reason, want, or have to change facilities. The following is intended toinform those investigators on what can be done in Gent and at what price.

The THETIS reactor belongs to The Institute for Nuclear Sciences of the Gent University (Department ofAnalytical Chemistry). It is a 250 kW water/graphite moderated reactor with 16 pneumatically servedirradiation facilities, five of which are potentially interesting for FT-work: channels 6 and 15 (thermalneutron flux ~ 3x1011 n/s.cm2; thermal/epithermal ~70; thermal/fast ~ 60); channels 7 and 16 (th ~1.7x1011 n/s.cm2; th/epi ~120; th/f ~ 100); and channel 8 (th ~ 1x1011 n/s.cm2; th/epi ~ 160; th/f ~ 120).The reactor is normally operational six times a month (Tuesdays and Thursdays) and each irradiationperiod can span 7 hours, except during university holiday periods (e.g. mid-July till mid-August andbetween Christmas and New Year). The irradiation vials have a cylindrical internal space of 1.9 cmdiameter x 7 cm height. Spatial thermal neutron flux gradients amount to ~ 6%/cm (maximum) radiallyand ~ 1%/cm axially (the effects of which in our own work are corrected for by simple coirradiation ofrelative flux monitors). Upon special request, the flux inhomogeneity in channel 8 can be reduced to anegligible level.

The charge is momentarily fixed at 175 EUR per irradiation day, such that 1hr of irradiation time costs asmuch as a 7hr irradiation period while 8hrs of irradiation time will cost 350 EUR as it involves twoworking days. Shipment by regular mail of the irradiated samples is included in the above offer, at noextra cost, on condition that the legal regulations are applicable, i.e. that the activity of the sample doesnot exceed 400 Bq. Shipment in this way has been possible within a month after irradiation of most of thesamples we irradiated thus far. If earlier shipment is required, or if in general these regulations are notmet, we will call upon an international carrier specialized in isotope transports, which inevitably will lead toextra costs that we will have to charge. Laboratories that are interested or would like to obtain additionalinformation should contact: Frans De Corte, Institute for Nuclear Sciences, Gent University,Proeftuinstraat 86, B-9000 Gent, Belgium; phone: + 32 (0)9 2646627; fax: + 32 (0)9 2646699; e-mail:[email protected].

OnTrack.htm





Some Thoughts on Inverse Modeling and Length and Kinetic Calibrationby Richard A. Ketcham

University of Texas at AustinDepartment of Geological Sciences, Austin, TX, 78712-1101

[email protected]

Introduction

When using computer programs (AFTSolve, Monte Trax, etc.) to extract time-temperature informationfrom fission-track data, two features should be kept in mind regardless of which annealing calibration onechooses to employ (e.g., Laslett et al., 1987, Crowley et al., 1991, Galbraith and Laslett, 1996, Ketchamet al., 1999): how do the length measurements being studied relate to the measurements used to createthe calibration, and how do the apatites being studied relate to the apatite(s) used to create thecalibration?

It is now widely appreciated that for many data sets using the Laslett et al. (1987) model and the initiallength derived from Green et al. (1986) of 16.3 µm (or thereabouts -- four values are given ranging from15.9 µm to 16.5 µm, with 16.3 µm both the mean and median of them) can often result in a spurious latecooling event, because that calibration predicts insufficient track shortening at low temperature. And,most journal editors don't look kindly upon statements to the effect of "pay no attention to the fakeMiocene cooling event." One solution employed by a number of workers is to use an artificially low initiallength, selected empirically to give some expected and reasonable result; examination of the efficacy ofthis approach is one of the aims of this brief, informal study.

However, two additional cautions must be given. First, the impetus to use an initial length value fromGreen et al., (1986) is fundamentally incorrect. This is because such a value solely reflects what P.Green and I. Duddy measured after employing their etching technique and utilizing their equipment. Assuch, the values given are indeed the best for normalizing their subsequent measurements of annealedlengths to create the Laslett et al. (1987) annealing calibration. On the other hand, if a worker isstudying her or his own data using Monte Trax or AFTSolve, then the length measurements should benormalized by an appropriate calibration measurement by that worker; after all, they are analyzing theirown data, not measurements by P. Green or I. Duddy, or, for that matter, R. Donelick if the Ketcham et al.(1999) annealing model is used. An example of a potential length calibration would be a measurementof annealed and irradiated Durango apatite, if a Durango-based annealing model is used. It should alsobe noted that, even when etching technique and measurement equipment are the same, two workers canstill come up with substantially different answers, as demonstrated in Green et al. (1986). Now, asmentioned above the Laslett et al. (1987) annealing calibration is probably not amenable to such anapproach, but other models (Crowley et al., 1991; Ketcham et al., 1999) seem to give better results forlow-temperature annealing, and thus workers would benefit from doing some length calibration. Similarly, the Laslett and Galbraith (1996) annealing model, which gives "dimensioned" lengths, would beused most properly by first normalizing its predictions using appropriate values from Crowley et al. (1991)and then applying one's own calibration.

The second caution is that the type of apatite being studied should ideally be the same type of apatitewhose annealing is depicted by the equation(s) one is using. Modeling fluorapatite using a Durangoapatite annealing equation may lead to inappropriate results, and the same goes for modeling slightlyCl-rich (or higher Dpar) apatite using a fluorapatite annealing equation.

To such pious admonitions the reasonable response can be made: "Yes, but, really, how much does a

OnTrack.htm



few tenths of microns or tenths weight per cent of this or that chemical constituent actually matter?" It isthis very practical question that it is the intention of this study to explore, if only in an informal and cursoryfashion.

Inversions of Synthetic Data Sets

This study briefly examines these issues using artificial data sets generated and then interpreted byAFTSolve version 1.1.3 using various assumptions about annealing models and length calibrations. Thetime-temperature paths studied here, for simplicity's sake, are two of the same ones used in Ketcham etal. (2000) (which can be obtained at http://gmr.minsocam.org/papers/v2/v2n1/v2n1abs.html) todemonstrate the underpinnings and capabilities of AFTSolve. For each path, the track length CDFpredicted by the program was used to generate an artificial data set of 100 track lengths, and thepresumed age was set equal to the calculated one with one-sigma error bounds of 10%. The first T-tpath (Fig. 1a) is a simple gradual cooling path with a lot of time spent at low temperature (< 40°C), whilethe second one (Fig. 1b) is also cooling-only but features an extended period at relatively hightemperature (60-90°C). Figure 1 shows both original "true" paths, in addition to synthetic datagenerated based on the Ketcham et al. (1999) annealing model assuming a Cl content of 0.10 apfu(which gives annealing temperatures similar to the Durango apatite model of Laslett et al. (1987),although Durango apatite is really closer to 0.12 Cl apfu), and AFTSolve inversion results using 10,000Monte Carlo paths that use the same annealing model. The inversions successfully replicate the data,albeit with considerable uncertainties.

(A) (B)

Figure 1: Track length distributions and "true" time-temperature paths for synthetic data and inversion

OnTrack.htm


http://gmr.minsocam.org/papers/v2/v2n1/v2n1abs.html

results created using the same annealing model: Ketcham et al. (1999) with 0.1 Cl apfu and an initialfission-track length of 16.23 µm based on equation (3) in Carlson et al. (1999).

The first attempts to model these data using a different annealing model are shown in Figure 2, for whichthe Laslett et al. (1987) model was used with an initial length of 16.3 µm. In this and all subsequentfigures, the original time-temperature path is shown with the model predictions. The inversions in eachcase are actually not too bad, given the overall statistical uncertainties present in the solutions. Althoughthe inversions each show evidence that slightly higher temperatures were preferred during the laterstages of the thermal histories, they are not far off. A thermal history more tailor-made to maximize thedeleterious effects of the low-temperature behavior of the Laslett et al. (1987) model, such as one with100 million years at the sea floor (e.g., Vrolijk et al., 1992) would show worse misfit, but such cases areuncommon.

Figure 2: Inversions of synthetic data from Figure 1 using the Laslett et al. (1987) Durango apatiteannealing model and an initial length of 16.30 µm.

The second attempt to model these data utilizes the Laslett et al. (1987) calibration using a hand-fit initialfission-track length value of 15.90 µm. This value was chosen to make the low-temperature predictionsof the Laslett et al. (1987) model roughly match those of the Ketcham et al. (1999) model for 0.1 Cl apfuapatite. On the other hand, most values I've heard of people using for their own data are in the15.6-15.8 µm range; later in this article the probable reason for this difference will be shown. Here wecan see the difference a few tenths of microns makes: not too much given the uncertainties, but theenvelopes do a better job of recovering the character of the true trends.

Figure 3: Inversions of synthetic data from Figure 1 using Laslett et al. (1987) Durango apatite annealingmodel and an initial length of 15.90 µm.

OnTrack.htm


While the results thus far are encouraging, it is important to realize that the synthetic data sets beingmodeled were created to specifically replicate the high-temperature annealing behavior of Durangoapatite as predicted by the Laslett et al. (1987) annealing model. While a bit of chlorine is notuncommon in apatite, a far more frequently encountered composition is near-end-member fluorapatite. Thus, another pair of synthetic data sets were generated using the same time-temperature paths asabove but using the Ketcham et al. (1999) annealing calibration to replicate end-member fluorapatite (i.e.0 Cl apfu ). The results of trying to invert these data using the Laslett et al. (1987) annealing model andan initial length of 16.3 µm are shown in Figure 4. Although the true path still cannot be statisticallyexcluded from possibility, it is clear in Figure 4a that the "global late Miocene cooling event" has finallyreared its ugly head. These results suggest the modest new insight that the origins of this artifact stemnot only from the low degree of low-temperature annealing predicted by the Laslett et al. (1987) model,but also from the fact that the apatites that workers are usually studying are simply not Durango apatites,and thus are not well-served by a Durango apatite annealing model!

Figure 4: Inversions of a new set of synthetic data generated using the Ketcham et al. (1999) annealingmodel for end-member fluorapatite and an initial fission-track length of 16.18 µm based on equation (3) inCarlson et al. (1999). The inversion used the Laslett et al. (1987) Durango apatite annealing model andan initial track length of 16.3 µm.

Our story comes to a gentle close with the results shown in Figure 5, in which the same data have beenmodeled using the Laslett et al. (1987) calibration with an initial length of 15.64 µm. This latter value wasagain chosen by hand, and is different from the 15.9 µm value used above for Figure 3 because is wasselected to make the Laslett et al. (1987) low-temperature predictions match those of a Ketcham et al.(1999) fluorapatite rather than 0.1 Cl apfu apatite. Once again it would seem that the balance isrestored, and the annealing model used is "close enough" to the one underlying the data to give a quitegood, if not perfect match. The principal inaccuracy brought about by using the Laslett et al. (1987)model that can be detected by a discerning eye is that the true time-temperature path in Figure 5b skirtsthe lower part of the best-fitting inversion envelope; this is because the Laslett et al. (1987) modelpredicts a slightly higher annealing temperature, which in turn results in inversion paths that tend to beslightly hotter to achieve a similar degree of track shortening. The reduction of the initial track lengthpartially (and fortuitously) compensates for this difference (compare Figures 4b and 5b), but not totally. As before, alternative particularly unfortunate thermal histories can potentially exacerbate the problemscaused by using the Laslett et al. (1987) model in this way.

OnTrack.htm


Figure 5: Inversions of synthetic data also examined in Figure 4 using the Laslett et al. (1987) Durangoapatite annealing model and an initial track length of 15.64 µm.

Conclusions

It is somewhat reassuring that the often-used technique of basically fudging the Laslett et al. (1987)Durango annealing model to get a better result seems capable of compensating for some of its problemsin being employed to study fluorapatite fission-track data without causing serious problems. In fact, thisresult is somewhat intuitive, because the normalized track length change is rather small (~4%), andgrows smaller in terms of microns as the degree of annealing progresses. It is also perhaps to beexpected because if it caused serious difficulties someone would probably have noticed by now.

At the same time, continuing this practice is probably not adviseable. For one thing, and perhaps mostdamning, it necessitates being lucky, in that it requires that the apatites being studied are sufficientlyclosely characterized by the combination of the annealing model and one's fudge factor, and as we'veseen above the latter may change for different types of apatite. If one's apatites are significantlydifferent, or worse yet span a range of kinetic behaviors, inversion results may be seriouslycompromised. Furthermore, this practice may subtly penalize acquiring a large amount of data. Part ofthe reason behind the general goodness of fits obtained in this study is the rather wide error boundsassumed for the synthetic data (only 100 tracks and 10% 1-sigma age errors). If the error bounds arereduced by heroic efforts of counting and measuring, inverse models will converge to a tighter solution,but it is probably more likely to be the wrong one if one uses a fudged model (Fig. 5b). Finally, althougha somewhat inappropriately applied model adjusted with an undocumented empirical correction oftenevidently gives reasonable results, it seems to fall shy of what one would prefer for publication-qualtyscientific work.

In closing, I should mention that work I'm doing right now (on an unfortunately sporadic basis) suggeststhat a simple measurement of unannealed induced lengths might not be all that's required for a trulyrigorous length calibration. Data I've seen and been given strongly suggest that as an apatite becomesmore annealed, the differences between length measurements of different workers can become muchmore pronounced, even when the same etching procedures are used. I hope to report on this, andpropose some tests and remedies, soon.

References

Carlson, W.D., Donelick, R.A., and Ketcham, R.A., 1999. Variability of apatite fission-track annealing kinetics I:Experimental results. American Mineralogist, 84, 1213-1223.

Crowley, K.D., Cameron, M., and Schaefer, R.L., 1991. Experimental studies of annealing etched fission tracks influorapatite. Geochimica et Cosmochimica Acta, 55, 1449-1465.

OnTrack.htm


Green, P.F., Duddy, I.R., Gleadow, A.J.W., Tingate, P.R., and Laslett, G.M., 1986. Thermal annealing of fission tracks inapatite 1. A qualitative description. Chemical Geology (Isotope Geoscience Section), 59, 237-253.

Ketcham, R.A., Donelick, R.A., and Donelick, M.B., 2000. AFTSolve: A program for multi-kinetic modeling of apatitefission-track data. Geological Materials Research, v2n1.

Ketcham, R.A., Donelick, R.A., and Carlson, W.D., 1999. Variability of apatite fission-track annealing kinetics III:Extrapolation to geological time scales. American Mineralogist, 84, 1235-1255.

Laslett, G.M., Green, P.F., Duddy, I.R., and Gleadow, A.J.W., 1987. Thermal annealing of fission tracks in apatite 2. Aquantitative analysis. Chemical Geology (Isotope Geoscience Section), 65, 1-13.

Laslett, G.M. and Galbraith, R.F., 1996. Statistical modelling of thermal annealing of fission tracks in apatite. Geochimicaet Cosmochimica Acta, 60, 5117-5131.

Vrolijk, P., Donelick, R.A., Queng, J., and Cloos, M., 1992. Testing models of fission track annealing in apatite in a simplethermal setting: site 800, leg 129. In R.L. Larson and Y. Lancelot Eds. Proceedings of the Ocean Drilling Program,Scientific Results, 129, 169-176.

How many track lengths do we need?by Meinert Rahn1 and Diane Seward2

1. Institut für Mineralogie, Petrologie und Geochemie, Albert-Ludwigs-Universität Freiburg, 79104Freiburg, Germany. [email protected]

2. Geologisches Institut, ETH-Zentrum, CH-8092 Zürich, Switzerland. [email protected]

How many of us have spent a morning or even a complete day looking for measureable confined tracksin one single apatite mount? What were you thinking about when sitting at the microscope, just havingmeasured track number 49, and the length histogram no longer apparently changing shape? However,you felt committed to search for 100 lengths, because this is what a good length distribution should have!Whoever said that there must be 100?In order to check the necessity for 100 track length measurements, we have selected three samples ofvery specific track length distributions. All data are unpublished, and we owe our thanks to Marc Jolivet(Montpellier) and Sabine Lange (Mainz) for providing us with extra data and material respectively.Sample SS1 has a narrow, unimodal distribution. This sample comes from a bore hole in a fast exhumingarea of Switzerland. 99SL105 has a negatively skewed distribution typical of an "undisturbed basement"cooling history (Gleadow et al. 1986). The sample is from a crystalline basement nappe in the Alps.Finally, AT-31 gives a bimodal length distribution with a group of very long tracks (similar to SS1), and agroup of reduced track lengths. The ratio of "long" to "short" tracks is approximately 3:1, thus, on averageevery fourth measured track is short. For all three samples 100 tracks were measured, with the resultingparameters being distinctly different from each other:

SS1 14.75 ± 0.12µm SD = 1.15µm99SL105 13.44 ± 0.16µm SD = 1.77µmAT-31 12.43 ± 0.22µm SD = 2.15µm

The evolution of these parameters from the first to the last measured track length is documented infigures 1 and 2. Figure 1 shows track length histograms after every 20 measurements. It is evident thatafter 20 measured tracks, all samples already indicate the range of the final length distribution. At thisstage, the gap between short and long tracks in AT-31 might still be a statistical artefact, however, with40 measured tracks, the bimodality is now visible. While after 20 measurements, SS1 and 99SL105,

OnTrack.htm




both, suggest a skewed distribution (though with different mean value), things become much moreobvious after 40 measurements. After 60 measurements, all distributions are clear and no longer change.

Figure 1. Evolution of the track length histograms of three samples with distinctly different exhumationhistories in steps of 20 measured tracks. For sample descriptions and explanation, see text.

Figure 2a displays the evolution of the mean length values, the standard error of the mean (shown as1-sigma, dark grey, and 2-sigma, light grey, envelope). After 30 measurements, the mean track lengthsare clearly separated from each other on the basis of a 1-sigma uncertainty, between SS1 and 98SL105even for a 2-sigma uncertainty. For a 95% confidence, however, the separation between 98SL105 andAT-31 needs the measurement of more than 60 tracks. For SS1 the mean value, does not changesignificantly anymore after 20, for 98SL105 after 10, for AT-31 after 35 measurements. When consideringthe evolution of the standard deviation, however, AT-31 in particular retains a large variation until about50 track lengths had been measured (Fig. 2b). The two steps marked with arrows indicate themeasurement of the two very short tracks between 4 and 6 microns (see figure 1). The position of thesetwo measurements during the accumulation of the 100 measurements, has a strong influence on the timewhen the standard deviation of AT-31 approaches its final value (dashed horizontal line). If the shorttracks had been measured for example at number 65 and 92, the standard deviation of this sampleprobably would have seen visible variation towards the right hand margin of the diagram. As is visible infigure 2a, the measurements of the two very short tracks has only a minor influence on the mean value.

OnTrack.htm


Figure 2. a) Evolution of the mean track length value of the three investigated samples with increasingnumber of track length measurements. 1-sigma standard errors are indicated as dark grey envelopes,2-sigma standard errors as light grey areas. The arrows indicate the moments of measuring two veryshort tracks in AT-31. b) Evolution of the standard deviation of the track length distribution of the threeinvestigated samples with increasing number of track length measurements. The arrows mark themeasurement of two very short tracks in AT-31.

For SS1 and 99SL105, the final value of the standard deviation is again reached at approximately 30measurements (Fig. 2b). Thus, with the exception of sample AT-31 we feel encouraged to stop our track

OnTrack.htm


measurements after 30 lengths, realizing that neither the shape of the histogram nor the mean andstandard deviation values do show any significant changes any more. Our investigated bimodal sampleAT-31 displays a distinct histogram after 40 measurements, a roughly constant mean value after 35measurements, and a smooth standard deviation evolution after 50 tracks. Is there ever any need to gofurther than 50?

Of course, one might argue, that the amount of measurements is dependent on the geologic questionthat is to be answered. If we are interested in getting an idea about the cooling rate, 30 tracks seem to beenough for the interpretation of an age value. However, if the age and track length distribution are to beused for time-temperature modelling, we may need a more detailed data set. Even on a modelling level,the influence of a single short measurement such as in AT-31 (arrows) is very questionable. Of moreimportance in the AT-31 length distribution is the ratio between the amount of measured tracks in theshort track and the long track population. With increasing steps of 20 measurements, the ratio shows thefollowing values: 2.3 (for 20 lengths), 3.3 (40), 3.2 (60), 3.2 (80), and 3.3 (100). In this case, the modellingwith 20 measured tracks would be expected to yield a different result than with 40 tracks, but from thislevel on, there is no change, and the modelling should therefore yield the same result.

The results of this small study are provoking, and this is what we wanted. We therefore expect to have aworldwide echo on our results. For further investigations, we would need good data sets from bimodalsamples with 100 measured tracks, in particular samples with very different ratios between the number ofmeasured tracks from the two modes. Furthermore, there might be a need for a good statistician to bringthis problem to a more sophisticated level (Rex, Geoff ? are you there? ). Finally, we want to get yourcomments from out there, all those poor trackers, that spend their precious time looking for 100 confinedtracks. Comments are highly welcome to be sent to [email protected] or [email protected].

Reference

Gleadow, A.J.W., Duddy, I.R., Green, P.F. & Lovering, J. F. (1986). Confined fission track lengths in apatite: a diagnostictool for thermal history analysis. Contrib. Mineral. Petrol. 94, 405-415.

FT2000 - Congratulations to the organizers and comments on the wayforward

by Kerry HegartyGeotrack International Pty Ltd

37 Melville Road, West Brunswick, VIC 3055, Australia Tel.: +61-3-9380-1077, Fax: +61-3-9380-1477

E: [email protected]

For those able to attend FT2000, you will no doubt share some of the warm feelings expressed by AndyGleadow at Monday night’s address by Bob Walker. The meeting provided a wonderful and importantopportunity to closely inspect and share the work of individuals within this specialist group, and also itgave us an opportunity to meet old friends. Congratulations to the many people involved.

Musing on the contributions represented at FT2000 is important in order to assess where our field isgoing in the future. It seems generally acknowledged by those in attendance that developments infundamental aspects of annealing behaviour were poorly represented, while applications stronglydominated the technical content. A similar distribution was represented at the previous fission track

OnTrack.htm





conference in Ghent in 1996. Prior to that time, there was more emphasis on technique developmentwhich necessarily dominated the first of the international four-yearly fission track conferences in Pisa in1982. Of course this point would not have been missed by the organizers. Barry Kohn indicated thatone of the main purposes of the conference was to encourage those in attendance to consider the futureof their science. But I rather had the feeling, particularly from student papers at FT2000, that our hopesfor the future were being firmly placed in the hands of U-Th/He, rather than close scrutiny of andadvances in the FT system. At one point, the FT system was referred to as a blunt instrument while thenew kid on the block (U-Th/He) promised to solve our problems. With this breath of optimism, thereseems to be a commensurate disregard for new developments in fission track annealing behaviour. I amleft asking myself why do these researchers seem so willing to use a less than ideal data set, and sowilling to invest their energy and funding on a new alternative? Is it too hard? Are there no students? Is academic funding cut too severely?

Surely, we would all have to agree that one of the most important sessions at FT2000 was the paneldiscussion chaired by Tony Hurford where various kinetic models were discussed. If we don’t havesome level of confidence in our kinetic models, then the results of all the previous application papers arebrought into question. The results of this discussion group were even more discouraging, in myopinion. Tony summarised the discussion with a question "… so, is it fair to say then, that the Laslett etal (1987) model can be laid to rest?" … to which there was strong if not universal agreement. (Ofcourse, it’s not that the Laslett et al model is wrong, rather it was designed for one compositional group -it has in fact stood the test of time within that narrow window. See more comments below.) I wassurprised the FT community of scientists was willing to acknowledge the inapplicability of Laslett et al,and walk off to lunch. Have you returned to your workplace using Laslett et al 1987, or easy to usesoftware such as MonteTrax because you don’t know what else to do? Are you training your students touse these packages and ignoring the uncertainties that are introduced by the output? As one gentlemanfrom Europe queried at the discussion, "What are we supposed to do at our labs? … are we all supposedto develop our own algorithms matching our own lab conditions, etc?" All excellent questions, but leftunanswered at FT2000. The onus is on the leaders of the FT community to initiate and follow-throughon these discussion, even if a consensus is not reached. We missed a very valuable opportunity atLorne.

I would have liked to have heard more from Geoff Laslett during this important panel discussion. It isimportant that the FT community is aware of the shortcomings (or potential abuses of FT data if theLaslett et al model is misapplied) from the man himself. Paul Green of Geotrack was very careful not toput words in Geoff’s mouth, and also said so much less than he could have. Paul was in the verydifficult position of trying to assist the FT community without appearing to promote Geotrack’s approachto these important problems. I have asked Geoff to write a few words about the application of Laslett etal, for all our benefit:

Geoff writes (May 2000): The Laslett et al (1987) model describes the annealing of Durango apatite at laboratory timesand temperatures. Its extrapolation to geological data is still being assessed, but a numberof careful published and unpublished studies suggest that it needs little, if any, refinement. Itis crucial that such field comparisons should only use grains with Durango characteristics.

It is now well-known (and has been for over a decade) that compositional effects play animportant role in the annealing of apatite. Grains often exhibit a wide range of compositions.Typically they have less chlorine than Durango, and anneal more easily, although grains witha higher chlorine content are not rare. Because of this, the composition of each grain in asample needs to be measured, and a multi-compositional annealing model needs to be used.

OnTrack.htm


However, it has become common practice to use the Laslett et al (1987) Durango model onnormal samples with a compositional spread. Not surprisingly, this can lead to meaninglessresults. This practice represents bad science, and should be discouraged.

Why the willingness to proceed with "bad science" in the FT community? Where are the resources,where are the students who have the willingness to undertake this fundamental work? Why arereviewers allowing authors to quote the time of events with a precision of ± 3 Ma (eg), when in fact thiserror is an analytical error and not relevant to uncertainties in the timing of geological events? In anutshell, the fundamental basis of the present problem lies in trying to interpret data that shows a spreadin the degree of annealing using a mono-compositional model.

As I said in my talk at FT2000 as well as in question time, I do not agree with the premise that more datais better. High-quality data with robust interpretations from five carefully selected samples can give usmore insight into geological problems than 50 samples interpreted using the wrong algorithm, giving usmisleading answers. Important advances have been made in the display of data, but we must be carefulto apply the highest standards at each step of the process ? from data collection to the interpretations ofthe data ? otherwise the beautiful displays are nothing more than very interesting artwork.

At Geotrack, we have invested heavily during the last 13 years in trying to further understand thecontrols on annealing. We have millions of measurements of chlorine content in apatite, just as onesmall example. We commend other groups which, with limited resources, have made their own efforts attrying to better understand annealing kinetics. Even if these represent a few tens of Cl measurements oretch pit geometries, at least it demonstrates that some parts of the scientific community have not given upin efforts to improve the technique. We need all these efforts as part of the scientific process if thetechnique is to be advanced. Still, I see easy-to-use software being handed out, and I wonder how muchof this process is actually good science, or just the provision of yet another easy path. Want the badnews? If we want to solve real geological problems with FT data, there is no easy path.

This is not a note to promote Geotrack’s developments and approach to fission track interpretations. Geotrack has always cooperated with academic groups around the world, and our interest in FT2000 andsupporting students generally are commitments we have invested in since the beginning of GeotrackInternational Pty Ltd in 1987. The situation revealed in Besancon, Ghent and again at Lorne suggests tome there could be important benefits in extending this cooperation. Like any commercial organisation,especially those which have invested heavily in research, we are amused by arguments that our workshould be published, that somehow by not publishing, the product is inferior. I don’t want this note todeteriorate into juvenile self-promotion; I am presently more concerned that we will arrive at FT2004 andsee Lastlett et al applied in the same way as in the previous 17 years, or some other new easyalternative. Geotrack is committed to continuing its cooperation with universities around the world and itssupport of the FT community. If the academic community is unable to find the funds or the studentsnecessary to advance the present public understanding of annealing kinetics, then surely there is amechanism by which a Geotrack-academic cooperation can provide the necessary assistance. I am notcertain about the details of how such a cooperation might work in practice, but I am certain that Geotrackis willing to help and explore possibilities. If you’d like to contact me at [email protected], wewould be happy to discuss the best way forward. Alternatively, we encourage the FT community toinvest directly in improving the kinetic description of annealing behaviour and offer our help and adviceshould you require it.

OnTrack.htm



Recent Fission-Track Papers

Here is a list of published fission track papers (published during 1997, 1998, 1999 and 2000) and some inpress articles that were submitted by the authors for inclusion in this issue of On Track. I am grateful tothe authors for the information. If you have a paper that you would like to see listed in this section, pleasesend the complete reference or a photocopy of the first page to the editor. We are also interested innon-fission-track papers that may be of special interest to the fission-track community. Papers in pressare welcome, please include an estimate of the expected month of publication.

1997

Warnock, A.C., P.K. Zeitler, R.A. Wolf and S.C. Bergman, 1997, An evaluation of low-temperatureapatite U-Th/He thermochronometry. Geochimica et Cosmochimica Acta, 61, 5371-5377.

1998

Blythe, A. E. and Kleinspehn, K., 1998, Tectonically versus climatically driven Cenozoic exhumation ofthe Eurasian plate margin, Svalbard: fission-track analyses. Tectonics, 17, 621-639.

Blythe, A. E., Bird, J. M. and Omar, G. I., 1998, Constraints on the cooling history of the central BrooksRange, Alaska, from fission-trackand 40Ar/39Ar analyses. In "Architecture of the Central Brooks Range Fold and Thrust Belt, Arctic Alaska:Boulder, Colorado", J.S. Oldow and H.G. Avé Lallemant (editors), Geological Society of America SpecialPaper 324, 163-177.

Bonetti, R., Guglielmetti, A., Malerba, F., Migliorini, E., Oddone, M. and Bird, R., 1998, Agedetermination of obsidian source samples from North Queensland and New South Wales, Australia. In"Advances in Fission-Track Geochronology" (P. van den haute and F. de corte, editors), Kluver AcademicPublishers, pp. 305-312.

Bonetti, R., Di Cesare, P., Guglielmetti, A., Malerba, F., Migliorini, E., Oddone, M., Bird, J.R., Torrence,R., Bultitude, R.J., 1998, Fission track dating of obsidian source samples from the Willaumez Peninsula,Papua New Guinea and eastern Australia. Record of the Australian Museum, 50, 277.

Corrigan, J., Cervany, P.F., Donelick, R. and Bergman, S.C., 1998. Postorogenic denudation along thelate Paleozoic Ouachita trend, south central United States of America: Magnitude and timing constraintsfrom apatite fission track data. Tectonics, 17, 587-603.

Mount, V., Crawford, R., Bergman, S.C., 1998. Regional Structural Style of the Central and SouthernOman Mountains: Jebel Akhdar, Saih Hatat, and the Northern Ghaba Basin. GeoArabia, 3, 475-490.

Yamada, R., Yoshioka, T., Watanabe, K., Tagami, T., Nakamura, H., Hashimoto, T. and Nishimura, S.,1998. Comparison of experimental techniques to increase the number of measurable confined fissiontracks in zircon. Chemical Geology, 149, 99-107.

1999

Bernet, M., Zattin, M., Garver, J.I., and Brandon, M.T., in press 1999, Exhumation of the European Alpsrevealed through fission-track ages of detrital zircons. Memorie di Scienze Geologiche (in English), 51.

OnTrack.htm


Bogdanov, N.A., Garver, J.I., Chekhovich, V.D., Palechek, T.N., Ledneva, G.V., Solov'ev, A.V.,Kovalenko, D.V., 1999, Stratigraphic and Tectonic Setting of the Olistostromal Flysch Complex, WesternAleutian Basin Coast, Northern Kamchatka Peninsula. Geotectonics, 5, 55-66.

Farley, K.A., P.W. Reiners and V. Nenow, 1999, An apparatus for high precision in-vacuum noble gasdiffusion measurements from minerals. Analytical Chemistry, 71, 2059-2061.

Garver, J.I., Soloviev, A.V., Kamp, P.J.J., and Brandon, M.T., in press 1999, Detrital zircon fission trackthermochronology: practical considerations and examples. Memorie di Scienze Geologiche (in English),51.

Garver, J.I., Brandon, M.T., Roden-Tice, M., and Kamp, P.J.J., 1999, Erosional denudation determinedby fission-track ages of detrital apatite and zircon. In "Exhumation Processes: Normal Faulting, DuctileFlow, and Erosion" (U. Ring, M.T. Brandon, S. Willett, and G. Lister, editors), Geological Society ofLondon Special Publication 154, pp. 283-304.

Hejl, E., Riedl H. and Weingartner, H. 1999, Cretaceous Palaeokarst and Cenozoic Erosion of the NorthSporades (Greece): Results from Geomorphological Studies and Fission-Track analysis. Mitt. Oesterr.Geol. Ges., 90, 67-82.

Hill, K.C. and Raza, A., 1999. Arc-continent collision in Papua New Guinea:- constraints from fissiontrack thermochronology. Tectonics, 18, 950-966.

Issler, D.R, Willett, S.D., Beaumont, C., Donelick, R.A. and Grist, A.M., 1999, Paleotemperature historyof two transects across the Western Canada Sedimentary Basin: Constraints from apatite fission trackanalysis. Bulletin of Canadian Petroleum Geology, 47, 475-486.

Jolivet, M., Roger F., Arnaud N., Brunel M., Tapponnier P., and Seward D., 1999. Histoire del’exhumation de l’Altun Shan : indications sur l’âge de la subduction du bloc du Tarim sous la sytème del’Altyn Tagh (Nord Tibet). C. R. Acad. Sci., 329, 749-755.

Reiners, P.W. and K.A. Farley, 1999, He diffusion and (U-Th)/He thermochronometry of titanite.Geochimica et Cosmochimica Acta, 63, 3845-3859.

Sorkhabi, R.B., Valdiya, K.S. and Arita, K., 1999, Cenozoic uplift of the Himalayan orogen: Chronologicaland kinematic patterns. In "Geodynamics of the NW Himalaya" (edited by A.K. Jain and R.M.Manickavasagam), Gondwana Research Group Memoir 6, pp. 189-206.

Sorkhabi, R.B., Stump, E., Foland, K.A. and Jain, A.K., 1999, Tectonic and cooling history of theGarhwal Higher Himalaya (Bhagirathi valley): Constraints from thermochronological data. In"Geodynamics of the NW Himalaya" (edited by A.K. Jain and R.M. Manickavasagam), GondwanaResearch Group Memoir 6, pp. 217-235.

Tagami, T. and Hasebe, N., 1999. Cordilleran-type orogeny and episodic growth of continents: insightsfrom circum-Pacific continental margins. The Island Arc, 8, 206-217.

Winkler, J.E., Kelley, S.A. and Bergman, S.C., 1999. Cenozoic denudation of the Witchita Mountains,OK, and southern midcontinent: apatite fission track thermochronology constraints. Tectonophysics, 305,339-354.

OnTrack.htm


2000

Arrowsmith, R., R. Bürgmann, and T. Dumitru, 2000, Uplift and fault slip rates in the southern SanFrancisco Bay Area from fission tracks, geomorphology, and geodesy. In "Quaternary Geochronology:Methods and Applications" (edited by J.S. Noller, J.M. Sowers and W.R. Lettis), American GeophysicalUnion Reference Shelf, 4

Dumitru, T. A., 2000, Fission-track geochronology. In "Quaternary Geochronology: Methods andApplications" (edited by J.S. Noller, J.M. Sowers and W.R. Lettis), American Geophysical UnionReference Shelf, 4, pp. 131-156.

Ketcham, R.A., Donelick, R.A. and Donelick, M.B., 2000. AFTSolve: A program for multi-kineticmodeling of apatite fission-track data. Geological Materials Research, v2n1.

O'Sullivan, P.B., Gibson, D.L., Kohn, B.P., Pillans, B., and Pain, C.F., 2000, Long-term LandscapeEvolution of the North Parkes Region of the Lachlan Fold Belt, New South Wales: Constraints fromApatite Fission Track and Paleomagnetic Data. Journal of Geology, 108, number 1).

Reiners, P.W., Brady, R., Farley, K.A., Fryxell, J.E., Wernicke, B.P. and Lux, D., 2000, Helium and argonthermochronometry of the Gold Butte block, South Virgin Mountains, Nevada. Earth and PlanetaryScience Letters, 178, p. 315-326.

Spikings, R.A., Seward, D, Winkler, W. and Ruiz, G. 2000, in press, Low TemperatureThermochronology of the northern Cordillera Real, Ecuador: Tectonic insights from zircon and apatitefission-track analysis. Tectonics.

Zattin, M., Landuzzi, A., Picotti, V. and Zuffa, G.G., 2000, Discriminating between tectonic andsedimentary burial in a foredeep succession, Northern Apennines, Journal of the Geological Society ofLondon, 157, 629-633.

IN PRESS

Blythe, A. E., Burbank, D. W., Farley, K. A. and Fielding, E., in press, Structural and topographicevolution of the Central Transverse Ranges, California, from apatite fission- track, (U-Th)/He and digitalelevation model analyses. Basin Research.

Dumitru, T. A, Zhou, D., Chang, E., Graham, S. A., Hendrix, M. S., Sobel, E. R., and Carroll, A. R., 2000,Uplift, exhumation, and deformation in the Chinese Tian Shan, in Hendrix, M. S., and Davis, G. A.,editors, Paleozoic and Mesozoic tectonic evolution of central and eastern Asia: From continentalassembly to intracontinental deformation: Geological Society of America Special Paper, in press(preprints available from author).

Dumitru, T. A., and Hendrix, M. S., 2000, Fission track record of north-vergent Jurassic intracontinentalfolding and thrusting in southern Mongolia, in Hendrix, M. S., and Davis, G. A., editors, Paleozoic andMesozoic tectonic evolution of central and eastern Asia: From continental assembly to intracontinentaldeformation: Geological Society of America Special Paper, in press (preprints available from author).

Fleischer, R.L., 2001, Ion Tracks in Intermetallic Compounds. In "Intermetallic Compounds-Principlesand Practice", (J.H. Westbrook and R.L. Fleischer, editors), Wiley and Sons, Chichester, UK, Volume 3.

Garver, J.I., Soloviev, A.V., Bullen, M.E., and Brandon, M.T., in press, Towards a more complete recordof magmatism and exhumation in continental arcs using detrital fission track thermochronometry. Physics

OnTrack.htm


and Chemistry of the Earth.

Hansen, K., 2000, Tracking thermal history in East Greenland: an overwiew. Global and PlanetaryChange, in press.

Lee, J., Hacker, B. R., Dinklage, W. S., Wang, Y., Gans, P. B., Calvert, A., Blythe, A. E. and McClelland,W., in press, Evolution of the Kangmar Dome, southern Tibet: Structural, petrologic, andthermochronologic constraints. Tectonics.

Sobel, E. R., Arnaud, N., Jolivet, M., Ritts, B. D. and Brunel, M., in press, Jurassic to Cenozoicexhumation history of the Altyn Tagh range, NW China constrained by 40Ar/39Ar and apatite fission trackthermochronology. In "Paleozoic and Mesozoic tectonic evolution of central and eastern Asia: Fromcontinental assembly to intracontinental deformation", M.S. Hendrix, and G.A. Davis, (editors), GeologicalSociety of America Special Paper.

Soloviev, A.V., Garver, J.I., Shapiro, M.N., in press, Fission-track ages of the detrital zircon fromsandstone of Lesnaya Group (Northern Kamchatka). Stratigraphy and Geological Correlation.

Spikings, R.A., Foster, D.A., Kohn, B.P. and O'Sullivan, P.B., 2000, The Late Neoproterozoic to Recentthermal history of the Precambrian Georgetown Inlier, northeast Australia. Australian Journal of EarthSciences, in press.

Tagami, T., Hasebe, N., Kamohara, H. and Takemura, K., 2000. Thermal anomaly around Nojima faultas detected by the fission-track analysis of Ogura 500M borehole samples. The Island Arc, in press.

Tagami, T., Murakami, M., Hasebe, N., Kamohara, H. and Takemura, K., 2000. Thermal historyanalysis of the Nojima fault borehole samples by fission-track thermochronology. USGS Open FileReport, in press.

Wells, M. L., Snee, L. and Blythe, A. E., in press, Dating of extensional shearing, an example from theRaft River Mountains, Basin and Range, western United States. Journal of Geophysical Research.

Call for Contributions to the December 2000 On Track issue 21

The next issue of On Track is scheduled for release in late December, 2000 and we are looking forcontributions. On Track welcomes contributions of virtually any kind, including scientific articles, news,gossip, job openings, descriptions of new lab techniques, reviews of useful products, raving editorialsabout what all the other labs are doing wrong, meeting announcements, cartoons, and descriptions ofwhat you are doing in your research.

If you would like to contribute, PLEASE send the final document no later than Dec. 15, 2000. If youpropose to submit a substantial article, PLEASE let the editor know ASAP.

On Track includes a list of recent and forthcoming fission-track papers. If you know of a paper that waspublished recently or is in press and should appear in the near future, please let me know so that it canbe added to the list. Also, if you happen to change location (or know someone who has) due to achange in jobs or finishing off the thesis and graduating, please inform the editor.

On Track is also happy to print advertisements. Please contact the editor for advertising rates. OnTrack has remained free of charge and will continue to do so (at least for the near future). On Track isnow posted onto the WWW electronically and hard-copy versions are only printed upon request for thoseinstitutes that have limited WWW access. Therefore, please make sure that the editor has an up-to-datee-mail address for each person/lab. Send contributions to:

OnTrack.htm


Raymond Jonckheere, Particle-Track-Dating Laboratory , Max-Planck-Institut - Kernphysik ,Saupfercheckweg 1, 69117 Heidelberg, DeutschlandTel.: ++49 6221 516 337, Fax: ++49 6221 516 633 Email: [email protected]

2000 UPDATE OF THE INTERNATIONAL FISSION-TRACKDIRECTORY

This directory is published solely for the information of fission-track researchers. It is neither acomprehensive directory including all fission-track researchers nor an official documentendorsing the scientific stand of individuals by the fission-track community. We provide herean update with the hope that we have accounted for the changes in addresses that haveoccurred since the last release of the directory. If you have changed your address, knowsomeone else who has or think that someone should be on this list, please let the editor know([email protected]).

Abbate, Ernesto Dip. Science del la Terra University of Florence Florence ITALY

Hasebe, Noriko Dept. of Science for Natural Environment Division of Physical Sciences Kanazawa University Kanazawa 920-1192, Japan Tel. 81-76-264-5727 Fax: 81-76-264-5746 E: [email protected]

Rebetez, Michel Universite de Franche-Comte U.F.R. des Sciences et des Techniques Laboratoire de Microanalyses Nucleaires 16, route de Gray F-25030 Besancon Cedex, France

Aizawa, Minoru Dept. of Geology Imperial College Prince Consort Road London SW7 2BP, UK Tel.: +44 (0) 171-594-6468 Fax: +44 (0) 171-594-6464 E: [email protected]

Hashemi-Nezhad, S.R. Dept. of Physics Tabriz Univ. Tabriz, Iran

Redfield, Thomas F. Technical Exploration Services 5 Frost Court Mill Valley, CA 94941, USA

Andriessen, Paul A.M. Laboratorium voor Isotopen Geologie Faculteit der Aardwetenschappen Vrije Universiteit de Boelelaan1085 1081 HV Amsterdam, The Netherlands.

Hayashi, Masao Kyushu Sangyo Univ. Fukuoka 813, Japan Tel.: 092-673-5883, Fax: 092-673-5899

Reiners, Peter, W. Assistant Professor Department of Geology Washington State University Pullman, WA 99164-2812 Email: [email protected] Web: http://www.wsu.edu/~reiners/ office: 509-335-6200 lab: 509-335-6676 fax: 509-335-7816

OnTrack.htm




http://www.wsu.edu/~reiners/

Armstrong, Phil Dept. of Geosciences P.O. Box 6850 California State University, Fullerton Fullerton, CA 92834-6850 USA

Hegarty, Kerry A. Geotrack International Pty Ltd 37 Melville Road West Brunswick VIC 3055, Australia Tel.: +61-3-9380-1077 Fax: +61-3-9380-1477 E: [email protected]

Roden-Tice, Mary, K. Center for Earth & Environ. Science SUNY Plattsburgh Plattsburgh, NY 12901, USA Tel.: 1-518-564-2019 Fax: 1-518-564-3152

Arne, Dennis C. Lecturer in Mining Geology Western Australian School ofMines Curtin University of Technology PMB22, Kalgoorlie WA 6430 Australia Tel.: ++61-(0)8-9088-6134, Fax: ++61-(0)8-9088-6140. E: [email protected]

Hejl, Ewald R. Institut fur Geologie und Palaontologie Universitat Salzburg, Hellbrunnerstraße 34/III A-5020 Salzburg, Austria Tel.: + 43-662-8044-5437/5400 Fax: + 43-662-8044-621 E: [email protected]

Ruiz, Geoffrey Doo Doon Geological Institute Sonnegstrasse, 5 ETH Zentrum, CH-8092 Zurich, Switzerland Tel: 41 1632 37 02 Fax: 41 1632 10 80 [email protected]

Bal, K. D. Fission Track Laboratory KDM Institute of Petrol. Exploration Oil and Natural Gas Corporation Dehradun, India.

Hill, Kevin C. Department of Earth Sciences La Trobe University Bundoora, VIC 3083, Australia Tel.: 61-3-479-1273 Fax: 61-3-479-1272 E: [email protected]

Saenz, Carlos Alberto Tello Instituto de Fisica "Gleb Wataghin" Universidade Estadual de Campinas UNICAMP, Campinas, SP, Brazil Caixa Postal 6165 CEP 13083-970 Tel.: 55-19-788-5522 Fax: 55-19-788-5512 E: [email protected]

Baldwin, Suzanne Dept. of Geosciences Univ. of Arizona Tucson, AZ 85721, USA

Himeno, Osamu Dept. of Mining Eng Kyyushu Univerity Hakozaki, Fukuuka 812-81, Japan Tel.: 092-642-3635 E: [email protected]

Saini, Hari Singh Dept. of Radiometric Dating Birbal Sahni Institute of Paleobotany 53 Univ. Road Post Box 106 Lucknow 226 007, India

Balestrieri, Maria Laura Dipartimento di Scienze della Terra via S. Maria, 53 56126 Pisa, Italy

Honda, Teruyyki Atomic Energy Research Laboratory Musashi Institute of Technology Kawasaki 215, Japan

Sandhu, Amanjit Physical Sciences Division, University of Toronto, Scarborough Campus, 1265 Military Trail, Scarborough, M1C 1A4, Ontario, Canada. Tel:416-287-7234 Fax: 416-287-7204 E: [email protected]

Barbero, Luis Dpto Geologia Facultad deCiencias del Mar Universidad de Cadiz 1150 Puerto Real, Cadiz Spain Tel.: int-34-956-470864 Fax: int-34-956-470811

Hulver, Michael L. Saudi Aramco PO Box 9279 Dhahran 31311 Saudi Arabia E: [email protected]

Schaefer, Thorsten Universitaet Bremen Fachbereich Geowissenschaften PO Box 330 440 D-28334 Bremen, Germany Tel.: 0049 421 218 3994 Fax: 0049 421 218 3993 E: [email protected]

OnTrack.htm



http://www.sbg.ac.at/gew/people/hejl/hejl.htm






Belton, Dave X. Thermochronology Group School of Earth Sciences University of Melbourne Parkville, 3052 AUSTRALIA Tel.: +61 3 8344 7217/7675 Fax: +61 3 8344 7761 E:[email protected]

Hungerbühler, Dominik Nederlandse Aardolie MaatschappijB.V. P.O. Box 23 1950 AA Velsen-Noord The Netherlands E: [email protected]

Schierl, Heimo Institut f. Geologie und Palaeontologie, Universität Salzburg, Hellbrunnerstraße 34/III, A-5020 Salzburg, Austria Tel.: + 43-662-8044-5437 Fax: + 43-662-8044-621

Bernet, Matthias Yale University Dept. of Geology and Geophysics 210 Whitney Ave. New Haven, CT 06520-1809 USA Tel: 1-203-432-5686 Fax: 1-203-432-3134 E: [email protected]

Hurford, Anthony J. Research School of Geological Sciences, Univ. and Birbeck Colleges, London WC1E 6BT, UK Tel.: +41-71-380-7704 Fax: +44-71-388-7614 E: [email protected]

Schwab, Martina Institut fuer Geologie Universitaet Tuebingen Sigwartstrasse 10, D-72076 Tuebingen,Germany E: martina.schwab@uni- tuebingen.de

Bergman, Steven C. ARCO International Oil & GasCo. PLC J2435 2300 W. Plano Parkway Plano, TX 75075-8499, USA Tel.: 1-972-509-6264 Fax: 1-972-509-6941 E:[email protected] (home: [email protected])

Iriarte, Sergio Sernageomin Av. Sta. Maria 0104 Casilla 10465 Providencia, Santiago de Chile Tel: (56-2) 737-5050 Fax: (56-2) 777-1906 E: [email protected]

Sekyra, Gerd Institut f. Geologie und Palaeontologie, Universität Salzburg, Hellbrunnerstraße 34/III, A-5020 Salzburg, Austria Tel.: + 43-662-8044-5437 Fax: + 43-662-8044-621

Bigazzi, Giulio Instituto di Geochronologia e Geochimica Isotopica, CNR, via Cardinale Maffi, 36 56127 Pisa, Italy Tel.: +39-50-560430/560110 Fax: +39-50-589008

Issler, Dale R. Geological Survey of Canada Institute of Sedimentary and Petroleum Geology 3303-33rd St., NW Calgary, Alberta, T2L 2A7, Canada Tel.: 1-403-292-7172, Fax: 1-403-292-5377 E: [email protected]

Seward, Diane Geology Institute ETH-Zentrum Sonneggstrasse, 5 8092, Zurich, Switzerland Tel.: 0041-1- 632-7702, Fax: 0041-1- 632-1080 E: [email protected]

Blythe, Ann E. Dept. of Earth Sciences Univ. of Southern California Los Angeles, CA 93106, USA E: [email protected]

Ito, Hisatoshi Central Research Institute of Electric Power Industry (CRIEPI) 1646 Abiko, Abiko city, Chiba, 270-1194, Japan Tel.: 81-471-82-1181 ext 8525 Fax: 81-471-83-3182 E: [email protected]

Shane, Phil School of Environ. & Marine Sci. Univ. of Auckland Tamaki Campus Private Bag 92019 Auckland, New Zealand Tel.: 64-9-373 7599 ext. 6821 Fax: 64-9-373 7042

Boettcher, Stefan S. Dept. of Geological Sciences Univ. of Texas at Austin Austin, TX 78712, USA Tel.: 1-512-471-8547 Fax: 1-512-471-9425 E:[email protected]

Iwano, Hideki Kyoto Fission-Track Co., Ltd. 44-4 Minamitajiri-cho, Kita-ku, Kyoto 603, Japan Tel.: +81-75-493-0684 Fax.: +81-75-493-0741 E: [email protected]

Shunsheng, Liu Changsha Institut of Geotectonics Academia Sinica Changsha 410013 Hunan Province, PR China Tel.: 86-731-8859165 Fax: 86-731-8859137

OnTrack.htm







Bojar, Ana-Voica Insitute für Geologie and Paläontologie Karl-Franzens Universität Heinrichstraße 26 A-8010 Graz, Austria Fax: 43-316-382885

Jacobs, Joachim Fachbereich 5, Geowissenschaften Universitaet Bremen Postfach 330440 28334 Bremen, Germany Tel: 0421-218-3995 Fax: 0421-218-3993 E: [email protected]

Siddall, Ruth Fission Track Research Group Geological Sciences Univ. College London London WC1E-6BT, UK Tel.: 0171-380-7777 ext. 2758 Fax: 0171-388-7614 E: [email protected]

Brandon, Mark T. Dept. of Geology and Geophysics, Yale University 210 Whitney Ave. New Haven CT 06520-8109, USA web:www.geology.yale.edu/~brandon Tel: ++1-203-432-3135 Fax: ++1-203-432-3134 E: [email protected]

Johnson, Kit Fission Track Research Group Dept. of Geological Sciences Univ. College London London WC1E 6BT, UK Tel.: (0)171-380-7777 ext 2418 Fax: (0)171-813-2802 E: [email protected]

Singh, Gurinder Dept. of Physics Guru Nank Dev Univ. Amritsar 143005, India

Brix, Manfred R. Ruhr-Universität Bochmum, Fakultat fur, Geowissenschaften Institu fur Geologie Postfach 102148 Universitätsstraße 150 D-W 4630 Bochum 1, Germany Tel.: +49-234-700-3236 Fax: +49-234-709-4179

Jolivet, Marc ISTEEM GGP laboratory CC 058 Universite Montpellier II 1 Place E. Bataillon 34095 Montpellier Cedex,, France E: [email protected]

Sobel, Ed Institut fuer Geowissenschaften Universität Potsdam Postfach 60 15 53 D-14415 Potsdam, Germany Tel: (49) (0331) 977-2904 or -2047 Fax: (49) (0331) 977-2087 E: [email protected]

Brown, Roderick W. Thermochronology Group School of Earth Sciences University of Melbourne Parkville, 3052 AUSTRALIA Tel.: +61 3 8344 7217/7675 Fax: +61 3 8344 7761 E:[email protected]

Jonkheere, Raymond Particle-track-dating Laboratory, Max Planck Institut fur Kernphysik D-69117 Heidelberg, Germany Tel.: +49 (6221) 516-337 Fax.: +49 (6221) 516-633 E: [email protected]

Sohrabi, Mehdi Radiation Protection Dept. Atomic Energy Organization of Iran P.O.Box 14155-4494 Tehran, Iran

Brunel, Maurice ISTEEM GGP laboratory CC 058 Universite Montpellier II 1 Place E. Bataillon 34095 Montpellier Cedex,, France E: [email protected]

Kamp, Peter J. Dept. of Earth Sciences Univ. of Waikato Hamilton 2001, New Zealand Tel.: 64-7-856-2889 Fax: 64-7-856-0115

Soloviev, Alexie Institute of the Lithosphere of MarginalSeas Russian Academy of Sciences Statomonetny per. 22 Moscow, 109180, Russia Tel: 007-095-953-5588 Fax: 007-095-953-5590 E: [email protected]

Burchart, Jan Institute of Geological Sciences Polish Academy of Sciences Zwirki i Wigury 93 02-089 Warsaw, Poland

Kelley, Shari A. Department of Earth and Envir. Sciences New Mexico Tech Soccoro, NM 87544, USA Tel.: (505) 661-6171 E: [email protected] [email protected]

Sorkhabi, Rasoul B. Senior Research Geologist Japan National Oil Corporation Technology Research Center Geology and Geochemistry section 2-2 Hamada, 1-chome,Mihama-ku chiba-shi 261-0025, Japan Tel.: ++81 (0)43 276-4420 Fax: ++81 (0)43 276-4062 E: [email protected]

OnTrack.htm


http://www.geology.yale.edu/~brandon









Buck, Steve Mobil North Sea Ltd. Union Row Aberdeen AB1 1SA, Scotland UK E: [email protected]

Kendrick, Dan Cheese Dan Kendrick Structural Geologist Santos Asia Pacific Pty Ltd PO Box 138 Lutwyche, QLD 4030 Australia Tel: 61-7-3630-3400 Fax: 61-7-3630-3444 E: [email protected]

Spikings, Richard Geology Institute ETH-Zentrum Sonneggstrasse, 5 8092, Zurich, Switzerland Tel.: ++41-(0)1- 632-7702, Fax: ++41-(0)1- 632-1080 E: [email protected]

Calmus, Thierry Instituto de Geología Estación Regional del Noroeste Universidad Nacional Autonoma de México Apartado Postal 1039 Hermosillo, Sonora, 8300, Mexico E: [email protected]

Ketcham, Richard Dept. of Geological Sciences Univ. of Texas at Austin Austin, TX 78712, USA Tel.: +1-512-471-0260 Fax: +1-512-471-9425 E: [email protected]

Stapel, Gerco Inst. voor Aardwerenschappen Vrije Universiteit De Boelenlaan 1085 1081 HV Amsterdam, The Netherlands E: [email protected]

Carlson, William D. Dept. of Geological Sciences Univ. of Texas at Austin Austin, TX 78712, USA Tel.: 1-512-471-4770 Fax: 1-512-471-9425 E: [email protected]

Kim, Joong Wook Dept. of Science Education Taegu Natl’ Univ. of Education Daemyung-2 Nam-gu, Taegu, 705-715, Korea Tel.: 82-53-620-1343 Fax: 82-53-620-1340 E: [email protected]

Steckler, Michael S. Lamont-Doherty Earth Observatory Palisades, NY 10964, USA Tel.: 1-914-365-8479, Fax: 1-914-365-8179 E: [email protected]

Carpena, Joelle DSD-SCS-LGCA C.E.N. Cadarache 13108 Saint Paul lez DuranceCDX, France

Kohn, Barry P. Thermochronology Group School of Earth Sciences University of Melbourne Parkville, 3052 AUSTRALIA Tel.: +61 3 8344 7217/7675 Fax: +61 3 8344 7761 E: [email protected]

Stiberg, Jan-Petter Institute for Energy Technology P.O. Box 40, N 2007 Kjeller, Norway Tel.: +47-63-80-61-22, Fax: +47-63-81-55-53

Carpenter, Stephen B. A505 Administration Bldg.National Institute of Standards and Technology, Gaithersburg, MD 20841, USA

Koshimizu, Satoshi Yamanashi Institute of Environmental Sciences Kamiyoshida, Fujiyoshida, Yamanashi 403-0005, Japan Tel.: 81-555-72-6194 Fax: 81-555-72-6206 E: [email protected]

Stockli, Danny Division of Geological and Planetary Sciences Mail Stop 100-23 California Institute of Technology Pasadena, CA 91125, USA E. [email protected] Tel.: +1 (626) 395-6177 (office) Tel.: +1 (626) 395-6007 (lab)

Carter, Andrew Fission Track Research Group Dept. of Geological Sciences Univ. College London London WC1E 6BT, UK Tel.: (0)171-380-7777 ext 2418 Fax: (0)171-813-2802 E: [email protected]

Kounov Alexandre Rosti Spatzli Geologisches Institut ETH-Zentrum CH-8092 Zurich Switzerland Tel.: ++41 1632 3639 Fax.: ++41 1632 1080 [email protected]

Stockmal, Glen S. Geological Survey of Canada Institute of Sedimentography and Petroleum Geology 3303-33rd Street, N.W. Calgary, Alberta T2L 2A7, Canada Tel.: 1-403-292-7173 Fax: 1-403-292-5377 E: [email protected]

Cederbom, Charlotte Institution of Geology Earth Sciences Centre S-413 81 Gothenburg, Sweden Tel.: +46 31 773 2800 Fax: +46 31 773 2849 E: [email protected]

Kowallis, Bart Joseph Dept. of Geology Brigham Young Univ. Provo, UT 84602, USA Tel.: 1-801-378-2467 Fax: 1-801-378-2265

Storzer, Dieter Museum d'histoire naturelle Laboratoire de Mineralogie 61 rue Buffon, 75005 Paris, France

OnTrack.htm









Chambaudet, Alain Universite de Franche-Comte U.F.R. des Sciences et des Techniques, Laboratoire de Microanalyses Nucleaires, 16 route de Gray F-25030 Besancon Cedex, France

Krochmal, Michael Autoscan Systems Pty. ltd. PO Box 112 Ormond, VIC 3204 Australia Tel.: + 61 39 596 8065 / 8092 Fax: + 61 39 596 8369 E: [email protected]

Stump, Edmund Dept. of Geology Arizona State Univ. Tempe, AZ 85287-1404, USA Tel.: 1-602-965-3971/5081 Fax: 1-602-965-8102 E: ateds@asuacad.

Clavero, Jorge Sernageomin Av. Sta. Maria 0104 Casilla 10465 Providencia, Santiago de Chile Tel: (56-2) 737-5050 Fax: (56-2) 777-1906 E: [email protected]

Kumar, Devendar Letter Box 11 National Geophysical ResearchInstitute Uppal Road Hyderabad - 500 007, India Tel: +91-040-7174433/7170141 ext:2497 Fax: +91-040-7171564/7170491 E: [email protected]

Sumii, Tomoaki Isotope Geoscience Section Geochemistry Dept. Geological Survey of Japan 1-1-3 Higashi, Tsukuba, 305, Japan Tel.: 81-298-54-3558, Fax: 81-298-54-3533 E: [email protected]

Coleman, Max Research Inst. for Sedimentology The Univ. of Reading PO Box 227, Whiteknights Reading, RG6 6AB, UK

Lal, Nand Dept. of Earth Sciences Kurukshetra Univ. Kurukshetra-136119, India Tel.: ++91 1-744-20410 Fax.: ++91 1-744-20277

Summerfield, Michael Dept. of Geography School of Earth Sciences Univ. of Edinburgh Edinburgh EH8 9XP, UK Tel.: +44-31-650-2519

Cloos, Mark Dept. of Geological Sciences Univ. of Texas at Austin Austin, TX 78712, USA Tel.: 1-512-471-4170, Fax: 1-512-471-9425 E: [email protected]

Laslett, Geoff CSIRO Mathematical and Information System Priv. Bag 10, Clayton South MDC, Clayton,VIC 3169, Australia Tel.: +61 3 9545 8018 Fax.: +61 3 9545 8080 E: [email protected]

Sun, Shaohua Changsha Institut of Geotectonics Academia Sinica Changsha 410013 Hunan Province, PR China Tel.: 86-731-8887945 (home) Fax: 86-731-8859137 E: [email protected]

Corrigan, Jeff D. ARCO Exploration & Production 2300 W. Plano Parkway Plano, TX 75075, USA Tel.: 1-214-509-4090 E: [email protected]

Lewis, Cherry L. E. Robertson Research Int. Ltd. Llanrhos, Llandudno, Gwynedd, North Wales, LL30 1SA, UK

Suzuki, Masao Rikkyo Univ. 34-1 Nishi Ikebukuro 3-Chome, Toshima-ku Tokyo 171, Japan

Coyle, David A. Tensor Information Systems, USA 3500 Regency Parkway, Suite C Cary, North Carolina 27511 Tel.: 1-919-463-0115 Fax: 1-919-463-0843 E: [email protected] or: [email protected]

Lewis, Cherry L. E. Robertson Research Int. Ltd. Llanrhos, Llandudno, Gwynedd, North Wales, LL30 1SA, UK

Tagami, Takahiro Dept. of Geology and Mineralogy Kyoto Univ. Kyoto 606, Japan Tel.: 81-75-753-4153 Fax: 81-75-753-4189 E: [email protected] u.ac.jp

Crowley, Kevin, D. Director Board on Radioactive Waste Management, National Research Council 2101 Constitution Ave., N.W. Washington, D.C. 20418, USA Tel.: 1-202-334-3066, Fax: 1-202-334-3077 E: [email protected]

Linn, Jon WVDEP/TAGIS 10 McJunkin Rd, Nitro, WV 25143, USA Tel.: (304) 759-0519 Fax: (304) 759-0565 E: [email protected]

Talbot, James K/T GeoServices, Inc. 661 North Plano Rd, Suite 317 Richardson, TX 75081, USA Tel.: (972) 437-9337 Fax: (972) 437-0455 E: [email protected]

OnTrack.htm








mailto: [email protected] u.ac.jp

Currie, Lisel Institute of Sedimentary and Petroleum Geology 3303-33rd St., NW Calgary, Alberta, T2L 2A7, Canada Tel.: 1-403-292-7004, Fax: 1-403-292-4961 E: [email protected]

Lisker, Frank FB5 - Geowissenschaften Universitaet Bremen PF 330440 Bremen, Germany E: [email protected]

Thomson, Stuart Institut für Geologie Ruhr-Universität Bochum Universitätsstraße 150 P.O. Box 102148 Bochum 44721, Germany

Danahara, Tohro Kyoto Fission-Track Co., Ltd. 44-4 Minamitajiri-cho, Kita-ku, Kyoto 603, Japan Tel.: +81-75-493-0684 Fax.: +81-75-493-0741 E: [email protected]

Lutz, Timothy M. Dept of Geology and Astronomy West Chester University West Chester, PA 19383, USA

Toro, Gloria Universidad EAFIT A.A. 3300 Medellin, Colombia E: [email protected]

De Corte, Frans Institute for Nuclear Sciences Univ. of Gent Proeftuinstraat 86 B-9000 Gent, Belgium

Mahon, Keith I. Exxon Production Research Company, MS: ST-2164 P.O. Box 2189 Houston, TX 77252-2189, USA Tel.: +1 (713) 965-7036 Fax: +1 (713) 965-2779 E: [email protected]

Upton, David Fission Track Research Group Dept. of Geological Sciences Univ. College London London WC1E 6BT, UK Tel.: (0)171-380-7777 ext 2418 Fax: (0)171-813-2802

Decker, John E. ARCO International, Inc. Jakarta, Indonesia E: [email protected]

Maksaev, Victor Dept. of Geology, University of Chile Casilla 13518, Correo 21, Santiago, Chile Tel.: (562) 678 4112 Fax: (562) 696 3050 E: [email protected]

Vance, Joseph, A. Dept. of Geological Sciences Univ. of Washington Seattle, WA 98195, USA

De Wispelaere, Antoine Institute for Nuclear Sciences Univ. of Gent Proeftuinstraat, 86 B-9000 Gent, Belgium Tel.: +32-9-264-6627 Fax: +32-9-264-6699 E:[email protected]

Märk, E. Hohrere technische Bundeslehr- und Versuchsanstalt Anichstr. 26-28, A 6020 Innsbruck, Austria

Van den haute, Peter Geologisch Instituut Rijiks Universiteit B-9000 Gent, Belgium Tel: +32-0-9-264/4592 or 6627 Fax: +32-0-9-264-4984 E: [email protected]

de Wit, M.C.J. De Beers Consolidated Mines Ltd P.O. Box 7383, Centurion, 0046 Pretoria, South Africa

Märk, T. D. Abt. f. Kernphysik u. Gaselektronik Institut f. Experimentalphysik Leopold Franzens Universität A 6020 Innsbruck, Austria

Van der Wateren, F. M. Institue for Earth Science Vrije Universiteit De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

Dodson, Martin H. Dept. of Earth Sciences Univ. of Leeds Leeds, LS2 9JT, UK

Marshallsea, Susan Geotrack International Pty Ltd 37 Melville Road West Brunswick VIC 3055, Australia Tel.: +61-3-9380-1077 Fax: +61-3-9380-1477 E: [email protected]

Ventura, Barbara Dipartimento di Scienze Geologiche Universita di Bologna via Zamboni 67 40127 Bologna, Italy Tel: +39-51-354579 Fax: +39-51-354522 E: [email protected]

Dokka, Roy K. Dept. of Geology Louisiana State Univ. Baton Rouge, LA 70803, USA Tel.: 1-504-388-2975

Matsuda, Takaaki Himeji Institute of Technology 2167, Shosha Himeji Hyogo 671-22, Japan

Vercoutere, Caroline Geologisch Instituut Rijiks Universiteit B-9000 Gent, Belgium

OnTrack.htm





Donelick, Raymond A.Donelick, Margaret B. Donelick Analytical, Inc. 1075 Matson Road Viola, Idaho83872-9709 U.S.A. voice: +1-208-875-2332 fax: +1-208-875-8881 E: [email protected]

Maze, Will B. Exxon Production Research P.O. Box 2189 Houston, TX 77252-2189, USA Tel.: 1-713-965-7223 Fax: 1-713-965-7951

Viola, Giulio Geologisches Institut Sonneggstrasse 5 ETH-Zentrum CH-8092, Zurich, Switzerland Tel.: 0041-1-252-2227 Fax: 0041-1-252-7008 E: [email protected]

Dorighel, Olivier Groupe de Geophysique Nucleaire Univerite Joseph Fourier Institut Dolomieu 15, Rue Maurice - Gignoux 38031 Grenoble Cedex, France

McCorkell, Robert CANMET, Mineral Technology Energy, Mines and Resources 555 Booth Street Ottawa, Ontario K1A 0G1, Canada

Virk, H. S. Dept. of Physics Guru Nanak Dev Univ. Amritsar-143005, India

Duddy, Ian R. Geotrack International Pty Ltd 37 Melville Road West Brunswick VIC 3055, Australia Tel.: +61-3-9380-1077 Fax: +61-3-9380-1477 E: [email protected]

McCulloh, Thane H. 7136 Aberdeen Dallas, TX 75230, USA Tel.: 1-214-691-6809

Wadatsumi, Kiyoshi Dept. of Geosciences Osaka City Univ. 3-3-138 Sugimoto Sumiyoshi-ku Osaka 558, Japan

Dumitru, Trevor A. Dept. Geol. & Env. Sci., Stanford Univ. Stanford, CA 94305-2115, USA Tel.: 1-415-725-1328, Fax: 1-415-725-2199 E: [email protected]

Meyer, Arnaud J. ELF AQUITAINE-CSTJF L1/010 64018 Pau Cedex, France

Wagner, Gunther A. Max-Planck-Institut fur Kernphysik,Postfach 103980 D-69029 Heidelberg, Germany E: [email protected] hd.mpg.de

Duncan, Alasdair BP Exploration PG8G (2/4S W10) 301 St. Vincent Street Glasgow, G2 5DD, Scotland, UK

Miller, Elizabeth L. Dept. of Geology, Stanford Univ. Stanford, CA 94305-2115, USA Tel.: 1-415-723-1149 Fax: 1-415-725-2199 E: [email protected]

Wagner, Martin Institut fur Petrographie und Geochimie Universität Karlsruhe Kaiserstr. 12 D-7500 Karlsruhe, Germany

Dunkl, Istvan Institute of Geology University of Tuebingen Sigwartstrasse 10 Tuebingen, D-72076 Germany Tel: +49-7071-297-4703 Fax: +49-7071-5059 E: [email protected]

Moore, Marilyn Geotrack International Pty Ltd 37 Melville Road West Brunswick VIC 3055, Australia Tel.: +61-3-9380-1077 Fax: +61-3-9380-1477 E: [email protected]

Wagner, Martin Institut fur Petrographie und Geochimie Universität Karlsruhe Kaiserstr. 12 D-7500 Karlsruhe, Germany

Durrani, Saeed A. School of Physics and Space Research, Univ. of Birmingham, Birmingham B15 2TT, UK Tel.: +44-21-414-4691/4655 Fax: +44-21-414-4693

Mora, Jorge Dept. of Geological Science State Univ. of New York Albany, NY 12222, USA

Wallace, Wes K. Dept. of Geology and Geophysics University of Alaska Fairbanks, AK 99775-5780 , USA Tel.: (907) 474-5386 Fax: (907) 474-5163 E: [email protected]

Eby, G. Nelson Dept. Environmental, Earth & Atmospheric Sciences University of Massachusetts Lowell, MA 01854 Tel: 1-978-934-3907 Fax: 1-978-934-3069 E: [email protected]

Mora, Jorge Escuela de Geologia Minas y Geofisica Facultad de Ingenieria Universidad Central de Venezuela Caracas, Venezuela

Walgenwitz, Frederic ELF AQUITAINE-CSTJF L1/010 64018 Pau Cedex, France

OnTrack.htm





mailto: [email protected] hd.mpg.de


Evarts, Russ U.S. Geological Survey, MS-999 345 Middlefield Road Menlo Park, CA 94025, USA

Murphy, John M. Dept. of Geology and Geophysics Univ. of Wyoming Laramie, WY 82071, USA Tel.: 1-307-766-5435 E: [email protected]

Walker, J. D. Dept. of Geology Univ. of Kansas 120 Lindley Hall Lawrence, KS 66045-2969, USA

Fayon, Annia K. Dept. of Geology and Geophysics 108 Pillsbury Hall 310 Pillsbury Dr SE Minneapolis, MN 55455, USA Fax: 1-612-625-3819 E: [email protected]

Naeser, Chuck & Nancy U.S. Geological Survey 926a National Center Reston, VA 22092, USA Tel.: 703 648-6964 (Chuck) Tel.: 703 648-5328 (Nancy) Fax: 703 648-6953 (both) E: [email protected] (Chuck) nnaeser@usgs,gov (Nancy)

Walker, Robert M. McDonnell Center for Space Sciences Campus Mail 1105 Washington Univ. St. Louis, MO 63130, USA Tel.: 1-314-935-6225 Fax: 1-314-935-6219 E: [email protected]

Fisher, David E. Dept. of Geological Sciences Univ. of Miami Miami, FL 33124-0401, USA Tel.: 1-305-284-3254 Fax: 1-305-284-4258

Nishimura, Susumu Dept. of Geology and Mineralogy Kyoto Univ. Kyoto 606, Japan Tel.: 81-75-753-4150, Fax: 81-75-753-4189

Walter, Bob Institute of Human Origins 1288 Ninth Street Berkely, CA 94709-1211, USA Tel.: 1-510-525-0500, Fax: 1-510-525-0668 E: [email protected]

Fitzgerald, Paul G. Dept. of Geosciences Univ. of Arizona, Tucson, AZ 85721, USA Tel.: 1-602-621-4052 Fax: 1-602-621-2672 E: [email protected]

Noble, Wayne P. Fission Track Research Group School of Earth Sciences University of Melbourne Parkville, 3052, Australia ph (WK) int + (613) 8344 7215 ph (HM) int + (613) 8531 4438 Fax. + (613) 9344 7761 [email protected]

Waraich, R. S. Fission Track Laboratory KDM Institute of Petrol. Exploration Oil and Natural Gas Corporation Dehradun, India.

Fleischer, Robert L. Dept. of Geology Union College Schenectady, NY 12308, USA Tel.: +1 (518) 388-6985 Fax.: +1 (518) 388-6417 Main office: 1-518-388-6262 E: [email protected]

Oddone, Massimo Dipartimento di Chimica Generale viale Taramelli, 12 27100 Pavia, Italy

Watanabe, Koichiro Dept. of Mining Faculty of Engineering Kyushu Univ., 36 Hakozaki, Fukuoka 812, Japan Tel.: 81-92-642-3634 E: [email protected]

Foland, Sara S. Amoco Production Company 1670 Broadway P.O. Box 800 Denver, CO 80201, USA

Ohira, Hiroto Dept. of Geoscience, Shimane Univ., Matsue 690, Japan Tel.: 81-852-32-6465 Fax: 81-852-32-6469 E: [email protected]

Weiland, Richard J. Arco International Oil and Gas Co. 2300 W. Plano Parkway Plano, Texas 75075 USA Tel.: 1-972-509-6968 E:[email protected]

Foster, David A.Dept. of Geology, University ofFlorida, PO Box 112120, Gainsville,FL 32611-2120, USA. Tel.: +1 (352) 392-2231 E.mail: [email protected]

Olesch, Martin Univ. Bremen FB 5 Geowissenschaften Postfach 330 440 2800 Bremen, 00071-00 Germany Tel.: +49-421-2183940 Fax: +49-421-2183993

Westgate, John A. Dept. of Geology Univ. of Toronto Scarborough, Ontario M1C 1A4, Canada E: [email protected]

OnTrack.htm



mailto: nnaeser@usgs,gov






Fugenschuh, Bernhard Geologisches Institut Univ. of Basel, Basel, Switzerland

Omar, Gomaa I. Geology Dept. Univ. of Pennsylvania Philadelphia, PA 19104, USA

Willet, Sean D. Dept of Geological Sciences University of Washington, Seattle, WA 98195 USA Tel.: 206 543-8653 Fax: 206 543-3836 E: [email protected] http://www.geology.washington.edu/~willett/

Galbraith, Rex F. Dept. of Statistical Science Univ. College, Gower Street London, WC1E 6BT, UK Tel.: +41-71-380-7192 Fax: +44-71-383-4703 E: [email protected]

Ono, Masako Hokkaido University Kyoyo-chigaku N17-W8, Kita-ku Sapporo, 060, Japan Tel.: 81-11-716-2111, ext. 5309 Fax: 81-11-736-3290 E: [email protected]

Yamada, Ryuji Nagaoka Institute of Snow and Ice Studies, National Research Institute forEarth Science and Disaster Prevention,STA, Japan 9400082 Suyoshi, Nagaoka, Niigata,Japan Tel.: +81-258-35-7522 Fax: +81-258-35-0020 E: [email protected]

Gallagher, Kerry. Dept. of Geology Imperial College, London, SW7 2BT, UK Tel: 0171-594-6424 Fax: 0171-594-6464 E: [email protected]

O'Sullivan, Andrea J. Department of Earth Sciences La Trobe University Bundoora, VIC 3083, Australia Tel.: 61-3-479-3517 Fax: 61-3-479-1272 E: [email protected]

Yamashita, Tohru Kyoto Fission-Track Co., Ltd. 44-4 Minamitajiri-cho, Kita-ku, Kyoto 603, Japan Tel.: +81-75-493-0684 Fax.: +81-75-493-0741 E: [email protected]

Ganzawa, Yoshiro Hokkaido Univ. of Education 1-2 Hachiman-cho Hakodate, 040, Japan Tel.: 81-0138-41-1121 Fax: 81-0138-42-3982

O'Sullivan, Paul B. Thermochronology Group School of Earth Sciences University of Melbourne Parkville, 3052 AUSTRALIA Tel.: +61 3 8344 7217/7675 Fax: +61 3 8344 7761 E:[email protected]

Yang, Tsanyao FrankDept. of Geology, National TaiwanUniversity, 245 Chou-shan Road, Taipei106-17, Taiwan Tel: (+886) 2-2369-5568 Fax: (+886) 2-2363-6095 E: [email protected]

Garver, John I. Dept. of Geology Union College Schenectady, NY 12308-2311,USA Tel.: 1-518-388-6517, Fax: 1-518-388-6417, Main office: 1-518-388-6262 E: [email protected]

Pagel, Maurice Universiti de Paris XI ? ORSAYTERRE Bbt. 504 90405 Orsay Cedex, France Tel.: 33-1-69-15-67-55 Fax: 33-1-68-15-48-82

Yegingil, Zehra Physics Dept. Cukurova Univ. P.O. Box 171 01330 Adana, Turkey

George, Pete Dept. of Geological Sciences Univ. of Texas at Austin Austin, TX 78712, USA

Pagliuca, Renato Dept. of Geological Sciences Pavia University Via Ferrata, 1 27100 PAVIA, Italy Tel.: +39-382-50-5839 Fax: +39-2-523-0197 E: [email protected]

Yoshioka, Tetsu Kyoto Fission-Track Co., Ltd. 44-4 Minamitajiri-cho, Kita-ku Kyoto 603, Japan Tel.: +81-75-493-0684 Fax: +81-75-493-0741 E: [email protected]

OnTrack.htm


http://www.geology.washington.edu/~willett/







Gibson, Helen Geotrack International Pty Ltd 37 Melville Road West Brunswick VIC 3055, Australia Tel.: +61-3-9380-1077 Fax: +61-3-9380-1477 E: [email protected]

Pan , Yun Dept. of Geological Sciences Univ. of SUNY at Albany NY 12222, USA

Zattin, Massimiliano Dipartimento di Scienze Geologiche Universita di Bologna via Zamboni 67 40127 Bologna, Italy Tel: +39-51-354579 Fax: +39-51-354522 E: [email protected]

Giegengack, Robert Geology Dept. Univ. of Pennsylvania Philadelphia, PA 19104-6316, USA

Parand, Simon Geological Survey of Iran, P.O. Box 13185-1494 Tehran, Iran Fax: 98216009328

Zeitler, Peter K. Dept. of Earth & Environ. Sciences Lehigh Univ. Bethlehem, PA 18015, USA Tel.: 1-215-758-3671 Fax: 1-215-758-3677 E: [email protected]

Giger, Matthias Dammweg 27 3604 Thun, Switzerland Tel.: 0041-33-368-227

Paul, Tracy A. Dept. of Chemistry Arizona State Univ. Tempe,. AZ 85287-1404, USA Tel.: 1-602-921-1306 E: agtxp@asuacad

Zentilli, Marcos, Dept. of Earth Sciences Dalhousie Univ. Halifax, Nova Scotia, B3H 3J5, Canada Tel.: 1-902-494-3873 Fax: 1-902-494-6889 E: [email protected]

Giles, Melvin R. EPT-HM Volmerlaan 8 Risswijk, The Netherlands E: [email protected]

Pengji, Zhai Institute of High Energy Physics Academia Sinica P.O. Box 2732 Beijing 100080, PR China

Zhao, Yunlong Beijing Research Institute of Uranium Geology P.O. Box 764 Beijing 100029, PR China

Glasmacher, Ulrich Forschungsstell Archaometrie der Heidelberger Akademie der Wissenschaften Max Planck Institut fur Kernphysik Postfach 103980 69029 Heidelberg, Germany Tel.: +49 (6221) 516-321 Fax: +49 (6221) 516-633 E: [email protected]

Perelygin, V. P. Flerov Laboratory of Nuclear Reactions Joint Institute for Nuclear Research Post Office Box 79 101 000 Moscow, Russia

Zhou, Zuyi Dept. of Marine Geology and Geophysics, Tongji University 1239 Siping Road 200092 Shanghai, China Tel.: 0086-21-65982358 Fax: 0086-21-65026278 E: [email protected]

Gleadow, Andrew J. W. Thermochronology Group School of Earth Sciences University of Melbourne Parkville, 3052 AUSTRALIA Tel.: +61 3 8344 7217/7675 Fax: +61 3 8344 7761 E:[email protected]

Perez De Armas, Jaime G. Dept. of Geology and Geophysics Rice University., MS-126 Houston, TX 77025, USA E: [email protected]

Zuffa, Gian G. Dipartimento di Scienze Geologiche Universita di Bologna via Zamboni 67 40127 Bologna, Italy Tel.: 39-51-354536 Fax: +39-51-354522 E: [email protected]

Graefe, Kirsten Institut fuer Geologie Universitaet Tuebingen Sigwartstrasse 10 D-72076 Tuebingen, Germany E: [email protected]

Petford, N. Bullard Lab. Dept. of Earth Sciences Univ. of Cambridge Madingly Rise Cambridge, CB3 0DZ, UK

OnTrack.htm






Green, Paul F. Geotrack International Pty Ltd 37 Melville Road West Brunswick VIC 3055, Australia Tel.: +61-3-9380-1077 Fax: +61-3-9380-1477 E: [email protected]

Poupeau, Gerard R. Universite Joseph Fourier Institut Dolomieu 15, Rue Maurice - Gignoux 38031 Grenoble Cedex, France Tel.: (33)-(0)4-76-63-59-30 / 59-64 Fax: (33)-(0)4-76-87-82-43 E: [email protected]

Grist, Alexander Dept. of Earth Sciences Dalhousie Univ. Halifax, Nova Scotia, B3H 3J5,Canada Tel.: 1-902-494-2372 Fax: 1-902-494-6889 E: [email protected]

Prashad, Rajinder Fission Track Laboratory KDM Institute of Petrol. Exploration Oil and Natural Gas Corporation Dehradun, India.

Grivet, Manuel Universite de Franche-Comte U.F.R. des Sciences et des n Techniques Laboratoire de Microanalyses Nucleaires 16, route de Gray F-25030 Besancon Cedex, France

Price, P. Buford Dept. of Physics Univ. of California Berkeley, CA 94720, USA Tel.: 1-510-642-4982, Fax: 1-510-643-8497 E: [email protected]

Guglielmetti, Alessandra Instituto di Fisica Generale Applicata Via Celoria 15 20133 Milano, Italy E: [email protected]

Puch, ThomasInsitute für Geologie andPaläontologie Karl-Franzens Universität Heinrichstraße 26 A-8010 Graz, Austria Fax: 43-316-382885

Gunnell, Yanni Laboratoire de Geographie Physique, URA, 1562, CNRS, Univesité Blaise-Pascal, 29 Bvd. Gergovia, 63037, Clermont Ferrand, CEDEX 1, France

Qvale, Henning Institute for Energy Technology P.O. Box 40 N 2007, Kjeller, Norway Tel.: +47-63-80-61-22, Fax: +47-63-81-55-53 E: [email protected]

Hadler, Julio C. Instituto de Fisica "Gleb Wataghin" Universidade Estadual deCampinas UNICAMP, Campinas, SP, Brazil Caixa Postal 6165 CEP 13083-970 Tel.: 55-19-788-5522 Fax: 55-19-788-5512

Rahn, Meinert Institut für Mineralogie, Petrologieund Geochemie Albert-Ludwigs-Universität Freiburg Albertstrasse 23b 79104 Freiburg, Germany Tel: 49-761-2036416 Fax: 49-761-2036407 E: [email protected]

Hansen, Kirsten Geological Institute Oster Volgrade 10, DK-1350 Kobenhavn K, Denmark Tel.: (home) 45-31-42-18-94 Fax: 45-33-14-84-33 E: [email protected]

Ratschbacher, Lothar Technische UniversitaetBergakademie Freiberg Institut fuer Geologie Bernhard-von-Cottastr. 2 D-9599 Freiberg/Sachsen, Germany Tel.: +49-3731-393758 Fax: +49-3731-393597 E: [email protected]

OnTrack.htm







Harman, Rebecca Department of Geology Imperial College, London, SW7 2BT.UK Tel.: (0171) 589-5111 ext. 56411 E: [email protected]

Ravenhurst, Casey E. Dept. of Geology and Geography Univ. of Massachusetts Amherst MA 01003, USA E: [email protected]

Harrison, Mark T. Dept. of Earth and Space Sciences Univ. of California, Los Angeles Los Angeles, CA 90024, USA

Raza, Asaf Thermochronology Group School of Earth Sciences University of Melbourne Parkville, 3052 AUSTRALIA Tel.: +61 3 8344 7217/7675 Fax: +61 3 8344 7761 [email protected]

Outstanding Hardware:Our stage systems are based on a highly-reliable, high-precision Kinetek™ computer-automatedmicroscope scanning stage. Several hundred Kinetek stages are currently in operation, mainly in thedemanding microelectronics and biotechnology industries. Compatible with almost any brand ofmicroscope. Use of this popular, general purpose stage significantly reduces the system cost. Systemalso includes a high-quality Calcomp™ 12x12" digitizing tablet. Assembly to full operational statusgenerally requires only a few days.

Outstanding Software:Software is a complete, highly sophisticated Apple Macintosh program developed with careful attention toall aspects of microscope work. Fully integrates track counting, track length measurement, slidescanning, and file management functions. Moves precisely from grain to mica print in 3 seconds. Veryuser friendly. Fully functional with a new Macintosh or a very inexpensive old Macintosh.

Innovative, Highly-Intuitive Stage Control System:Stage is driven primarily with the digitizing tablet cursor rather than a joystick. For example, to center agrain or track, just superimpose the cursor on it, push a button, and the stage automatically centers it. This avoids tedious manual centering via the joystick. Most software commands are driven from thecursor buttons, which are easily distinguished by feel, so there is no need to look away from theeyepieces to the computer screen or keyboard.

Fission Track Laboratories Using the System (year installed; *adapted to a non-Kinetek stage)

OnTrack.htm



● Stanford University, Stanford, California(1991)

● University of California, Santa Barbara,California (1992)

● ARCO Exploration and ProductionTechnology, Plano, Texas (1992). Moved toUniversity of Minnesota, Minneapolis, Minnesota, in 1999.

● Universität Bremen, Bremen, Germany(1993)

● E.T.H., Zürich, Switzerland (1993*)

● Kent State University, Kent, Ohio (1993)

● University of Wyoming, Laramie, Wyoming(1993)

● University of Arizona, Tucson, Arizona (1993)

● Max-Planck-Institut, Heidelberg, Germany(1993*)

● Union College, Schenectady, New York(1994)

● Monash University, Melbourne, Australia(1994*). Moved to University of Melbourne in1999.

● La Trobe University, Melbourne, Australia(two systems, 1994*). Moved to University ofMelbourne in 1999.

● University of Pennsylvania, Philadelphia,Pennsylvania (1995)

● Universität Tübingen, Tübingen, Germany(1995)

● Universidad Central de Venezuela, Caracas,Venezuela (1995)

● Brigham Young University, Provo, Utah(1995)

● Central Research Institute of the ElectricPower Industry, Chiba, Japan (1995)

● Universität Salzburg, Salzburg, Austria(1996)

● University of Southern California, LosAngeles, California (1996)

● E.T.H., Zürich, Switzerland (secondsystem, 1996*)

● Geologisk Centralinstitut, Copenhagen,Denmark (1996*)

● University of Waikato, Hamilton, NewZealand (1996*)

● Università di Bologna, Bologna, Italy(1997)

● Centro di Studio di Geologia dell'Appennoe delle Catene Perimediterranee, Florence,Italy (1997)

● University of Wyoming, Laramie,Wyoming (second system, 1997)

● Universität Potsdam, Potsdam, Germany(1997)

● Seoul National University, Seoul, Korea(1998)

● E.T.H., Zürich, Switzerland (third system,1998)

● Universität Basel, Basel, Switzerland(1998)

● University of Florida, Gainesville, Florida(1998)

● Universite Paris-XI, Paris, France (1998)

● Universität Graz, Graz, Austria (1998)

● Göteborgs Universitet, Göteborg, Sweden(1999)

● Universidad de Cádiz, Cádiz, Spain (1999)

● Universite Montpellier II, Montpellier,France (1999)

● Kurukshetra University, Kurukshetra,India (1999)

● Universität Tübingen, Tübingen,Germany, (second system, 1999)

● California State University, Fullerton,California (2000)

Further Information:An early version of the system is described in a paper in Nuclear Tracks and Radiation Measurements,vol. 21, p. 575-580, Oct. 1993 (1992 Philadelphia Fission Track Workshop volume). For detailedinformation please contact: Dr. Trevor Dumitru, 4100 Campana Drive, Palo Alto, California 94306,U.S.A., telephone (auto-switching voice and fax line): 1-650-725-6155.

OnTrack.htm



AUTOSCANTHE ORIGINAL AND STILL THE BEST SOLUTION

FOR FISSION TRACK DATING16 YEARS - 16 COUNTRIES

Better than ever before ! Version 1.0 for Windows of our classic FTD software, Trakscan, whichruns under Windows NT/2000/98/95 was released at FT2000 in Lorne, Victoria, Australia inFebruary 2000. Don’t miss this new, exciting product ! Low-cost upgrades will be offered toexisting Trakscan for DOS Version 7.0 users.

Improve your focus ! Use our 3-axis stage system with 0.1 micron z-axis resolution. TrakscanVersion 1.0 for Windows provides on-screen images of fission tracks for simplified counting.Instantly toggle between grain and mica images for track comparison. Mark counted tracks withyour mouse to avoid double counting.

To use our high-accuracy 3-axis stage and 3-axis joystick for other applications, please note that

OnTrack.htm


our Windows NT/2000/ 98/95 version of the ASDK (Autoscan Software Development Kit) is nowavailable. Contact us !

StreetAddress :

4/293 Bay Street, Brighton, Vic 3186 Australia

PostalAddress :

PO Box 112, Ormond, Vic 3204, Australia

Telephone : + 61 3 9596 8065 / + 61 3 9596 8092Fax : + 61 3 9596 8369Mobile : + 61 3 (417) 358 751

Email : [email protected]

Web Site : http://www.autoscan.com.au/~autoscan

Contact 1 : Michael Krochmal, Chief Executive OfficerContact 2 : Ian Larsen, General ManagerContact 3 : Garey Laken, Technical Director

This is a paid advertisement. Please note that trademarks appear within this advertisement, and areappropriately capitalised. Such trade marks are used for illustrative purposes only, and to the benefit ofthe owner of such marks. Our use of these marks should not be regarded as affecting their validity - wehave no intention of infringing on such marks.

Call for papersInternational Association of Sedimentologists Meeting

Davos, Switzerland 3-5 September 2001

We would like to give you early warning about a special Symposium that will take place at the abovemeeting.

"Applications of geochronologic methods in sedimentary systems"

Anyone interested in receiving a circular please contact:Haruko Hartmann,IAS-2001, Geological Institute, ETH Zentrum, 8092 SwitzerlandFax:- +41 1 632 10 80E-mail: [email protected]

Or web page : www.ias-2001-ethz-ch

Diane Seward and Bernhard Fügenschuh

OnTrack.htm



http://www.autoscan.com.au/~autoscan


http://www.ias-2001-ethz-ch/

And finally................... a couple of unofficial pics from FT2000 that you will not findon the official FT2000 www site (http://ft2000.unimelb.edu.au/ft2000.html).

1. Somewhere in South Australia.... (sure that's not a defect lads?)

Meinert Rahn,Istvan Dunkl and Luis Barbero

2. Central Victoria: Spot the mountain or Danny hitch hikes back to Caltech

OnTrack.htm


http://ft2000.unimelb.edu.au/ft2000.html

Documents

In this Issue - Autoscan · 2006-05-31 · the fission-track method. Raymond carried out his Ph.D-work on methodical problems of fission-track dating during 1980-1985, which was about