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The NSF MARGINS Concept
• Interdisciplinary Initiatives developed from community workshops 1988-2000– All “cross the shoreline”– Active processes– Focus Sites concentrate resources
The Machinery:• Independent NSF Panel funds all science proposals:
reviewed, competitive• Steering Committee (MSC) represents Community
– Logistics and coordination: MARGINS Office
Broad focus: evolution of continental margins
www.nsf-margins.org
A Global Program
• All Focus Sites are outside the U.S.• Many have major International Partners• Diverse sets of data
– Onshore and Marine– Geophysical, Geological, Geochemical, …– Archival and Real-time
The program only succeeds through international engagement
• 94 projects, 182 grants, ~120 PI’s
• Many data types, onland, marine, …
Funding Summary
By Data TypeMarine
Terrestrial
Land-Sea
Experiment& Theory
Geochem-istry
0
5
10
15
20
# of projects
By Data TypeMarine
Terrestrial
Land-Sea
Experiment& Theory
Geochem-istry
0
5
10
15
20
# of projects
(through FY08)
Awards/initiative/year,Grouped by
0
2
4
6
8
1999 2000 2001 2002 2003 2004 2005 2006 2007
RCLS2SSEIZESubFac
Initiatives• SubFac: The Subduction Factory
• SEIZE: Seismogenic Zone Experiment
• S2S: Sediment Source to Sink
• RCL: Rupturing Continental Lithosphere
SubFac,SEIZE
RCLSEIZE
SubFac
S2S
Focus Sites
Four Initiatives• How do continents grow?
– composition: The Subduction Factory
– mechanics: Seismogenic Zone Experiment
• How do continental margins change?– material transport: Sediment Source to Sink
– mechanics: Rupturing Continental Lithosphere
Initiatives & Focus Sites
• Production, transport & storage of sediments & solutes from source to sink
• Production, transport & storage of sediments & solutes from source to sink
Sediment Source-to-SInk
S2SGulf of PapuaGulf of Papua Waipaoa, N.Z.Waipaoa, N.Z.
• Nature and genesis of large subduction-zone thrust earthquakes and the faults that make them
Seismogenic Zone
SEIZENankai Nankai Central AmericaCentral America
Initiatives & Focus Sites
• The cycling of material, fluids, and energy from trench to arc and deep earth; growth of continents
Subduction Factory
SubFacCentral AmericaCentral America Izu-Bonin-MarianaIzu-Bonin-Mariana
Allied: Cascadia, Aleutians
• Driving forces for rift initiation, propagation and evolution, from continent to ocean basin
Rupturing Continental Lithosphere
RCL Gulf of California/Salton TroughGulf of California/Salton Trough
Allied: Red Sea
Themes and Initiatives• How do continents grow?
– composition: The Subduction Factory
– mechanics: Seismogenic Zone Experiment
• How do continental margins change?– material transport: Sediment Source to Sink
– mechanics: Rupturing Continental Lithosphere
Central America Izu-Bonin-Marianas
Central America Nankai
Fly/Papua (New Guinea) Waipaoa (New Zealand)
Gulf of California / Salton Trough
Initiatives: SubFacSubduction Factory
SubFac
Central AmericaCentral America
Izu-Bonin-MarianaIzu-Bonin-Mariana
Allied: Cascadia, Aleutians
•79 NSF-MARGINS Awards•Major workshops: 1998, 2000, 2009•Six Site and Topical workshops (site wkshps in 2007)•3 Monographs or Special Issues
Energy, mass & chemical balances; effect on continental growth and evolution
Subduction parameters as forcing functions: production of magma and fluid
Volatile cycles and chemical, physical & biological processes - trench to deep mantle
SubFac: IBM
• 27 NSF-MARGINS Awards
• Multiple field projects
• 8 Major Workshops
• Anatahan Rapid Response
Initiatives: SEIZESeismogenic Zone
SEIZE
Controls on seismic energy release during Earthquakes
Temporal relationships among stress, strain, pore fluid pressure thru seismic cycle
Controls on locked, unlocked regions on subduction interface
Propagation, slip rates and distribution of fast, slow, tsunamigenic earthquakesCentral AmericaCentral America
NankaiNankai
•40 NSF-MARGINS Awards•Major workshops in 1997, 2003, 2008•NanTroSeize drilling started Sept 2007•2007 Seismogenic Zone Volume
SEIZE: Nankai
• 11 NSF-MARGINS Awards
• 6 Major SEIZE Workshops
NanTroSEIZE
• 2006: 3D site survey• 2007-8: Chikyu Phase 1* Integrated thermal modeling;
tremor & slip inversions
3D imaging: Splay faults & tsunamis
G. Moore et al., in press
SubFac/SEIZE: Central America
• 41 NSF-MARGINS Awards
• Multiple Field Projects
• Several integrated workshops
Initiatives: S2SSource-to-Sink
Fly-Gulf of PapuaFly-Gulf of Papua
WaipaoaWaipaoa
•1st awards 2003 – 29 NSF-MARGINS Awards to date•Major Workshops: 2006, 2009 synthesis•Recent Special Issues•Complementary CSDMS modeling facility
What controls production, transport & storage of sediments & solutes from source to sink? (tectonics-climate-humans)
What processes initiate erosion & sediment transfer, and what are critical feedbacks?
How do sedimentary processes interact with tectonics, climate & human effects to build a stratigraphic record?
S2S: New Zealand
• 10 NSF-MARGINS Awards
• 7 S2S Workshops
• Multiple Field Projects
S2S: Papua New Guinea
• 18 NSF-MARGINS Awards
• Multiple Field Projects
• 7 S2S Workshops
Initiatives: RCL Rupturing Continental Lithosphere
Gulf of California/Salton TroughGulf of California/Salton Trough
Allied: Red Sea; Focus Site pre-2006
•30 NSF-MARGINS Awards•6 Major workshops: 2000-2009•2 thematic Monographs
What forces drive rift initiation, propagation and evolution?
How does deformation vary in time & space, and why?
How does crust evolve, physically & chemically, as rifting proceeds to spreading?
What is role of magmatism and fluids in continental extension?
RCL: Gulf of California
• 22 NSF- MARGINS Awards
• Multiple Field Projects
• 6 Major Workshops 2000-2009
RCL: Red Sea
• Ancillary site
• 5 NSF-MARGINS Awards before 2006
Special Volumes and BooksIzu-Bonin-Mariana Subduction System (Kodaira, Pozgay & Ryan, eds.) Special Theme G-Cubed, accepting contributions 2008-2010 Central American Subduction System (Alvarado, Hoernle & Silver, eds.) Special Theme G-Cubed, accepting contributions 2007-2009Papuan Continuum: S2S (Nittrouer, Slingerland, & Dickens, eds.) Spec. Issue JGR-Earth Surface, March 2008 Waipaoa S2S (Kuehl & Carter, eds.) Spec. Issue Marine Geology, Expected Publication early 2009Arenal Volcano, Costa Rica, Special Issue (Gill, Reagan, Tepley & Malavassi, eds.) J. Volcanol. Geotherm. Res., 20062003 Anatahan Eruption Special Issue (Hilton, Pallister & Pua, eds.) J. Volcanol. Geotherm. Res., 2005The Seismogenic Zone of Subduction Thrust Faults (Dixon & Moore, eds.), Columbia Univ. Press Sept. 2007.Imaging …. Continental Lithosphere Extension and Breakup (Karner, Manatschal & Pinheiro, eds.), Geol. Soc. SP 282, 2007.Rheology and Deformation of Lithosphere at Continental Margins (Karner, Taylor, Driscoll & Kohlstedt, eds.), Columbia U. Press, 2004.Inside the Subduction Factory (Eiler, ed.), AGU Monogr. 138, 2004.
Nature/Science papers: International Partnerships & MARGINS-funded work
Nature, in press, Dec. 2007
Geochemical and Geophysical Evidence for Arc-Parallel Flow in the Mantle Wedge Beneath Costa Rica and NicaraguaK. Hoernle1,2, D. L. Abt3, K. M. Fischer3, H. Nichols1, F. Hauff2, G. A. Abers4, P. van den Bogaard1,2, K. Heydolph1, G. Alvarado5, J. M. Protti6, W. Strauch7
RCLPESCADOR
MexicoU.K.
SEIZENanTroSEIZE
Japan
SubFacTUCAN
GermanyCosta RicaNicaragua
MARGINS Mini-Lessonshttp://serc.carleton.edu/margins/collection.html
• Ready-to-use undergraduate learning modules
• > 30 Mini-Lessons spanning MARGINS science and high-impact results
Events in 2009
• Major Workshops – April, New Zealand: S2S Synthesis
– April-May, Charleston SC: RCL Synthesis
– September: Mt. Hood, OR: TEI on Volatiles in the Subduction Factory
• Education Highlights – Mini-Lesson Testing & Assessment (help needed)
– Distinguished Lecture Program Year 5
• Decadal Review– Committee met Feb. 2009
2009 Decadal Review
• 102 one-page Research Nuggets from PIs
• MSC, others wrote Review Documentation– Reviews of 4 Initiatives; management; broader
impacts
Future Program:– Build a successor program– Is a focused program needed, why not rely upon
core funding?– How should program be structured?
MARGINS Successor Planning
• Community-wide workshop Feb 2010
• Open to all
• www.nsf-margins.org/SuccessorProgram
• Draft Science Plan goes to NSF summer 2010.
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