Anthony Finizola

8/13/2019 Anthony Finizola

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Laboratoire GoSciences RunionUniversidad de La Runion

Institut de Physique du Globe de ParisFrancia

Tomografa de Alta Resolucin yVigilancia de los Sistemas Hidrotermales

Anthony Finizola


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Tomografa de Alta Resolucin yVigilancia de los Sistemas Hidrotermales

Porqu?


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VULCANIAN

SURTSEYAN Different eruptivedynamisms


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Different eruptivedynamisms

ENERGY


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STROMBOLIAN

SURTSEYAN Different eruptivedynamisms


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Differenteruptive

dynamisms


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HAWAIIANDYNAMISM


Kilauea

Piton de la Fournaise


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HAWAIIAN

Dif ferent eruptivedynamisms

Kilauea1924

Pitonde la

Fournaise1961


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Eyjafjallajkull 2010


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SANTORINI : ~ -1600 BC

Extinction of Minoean civilisation (civilizacinminoica)

TAMBORA : 1815 :~ 60.000 victims

KRAKATAU :1883 :~ 36.000 victims

Most lethal volcanic disasters



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SANTORINI :~ -1600 BCExtinction of

Minoeancivilisation

KRAKATAU :1883

~ 36.000

victims

TAMBORA :1815

~ 60.000

victims


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SAINT HELENS : 1980 Hydrothermal alteration


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Self-Potential (SP): ddp (mV)


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Self-Potential (SP): ddp (mV)


21/142Streaming-potential : ddp (mV)


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23/142Revil, 2002

Streaming potential : ddp (mV)


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1. Self-potential mapping* Hydrothermal systems* Structural boundaries* Highest permeability areas

* Structural* Monitoring

2. 2D cross section: ElectricResistivity Tomography + Self-potential + subsurface soil

temperature + CO 2 soil degassing


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1. Self-potential mapping

* Hydrothermal systems* Structural boundaries* Highest permeability areas


2. 2D cross section: ERT + Self-potential subsurface soil

temperature

CO2 soil degassing


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Ishido, GRL (2004) Lnat, NSG (2006)


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Misti (southern Peru)


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Finizola et al., JVGR (2004)

Misti


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Finizola et al., JVGR(2004)

Misti


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temperature

CO2 soil degassing


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Finizola et al.,JVGR (2004)

Misti

Misti


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Finizola et al.,JVGR 2004

Misti


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Finizola et al., JVGR (2004)Misti


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temperature

CO2 soil degassing


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Stromboli (Italy)

Stromboli


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Stromboli



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Allard et al., 1991


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Volcanological andtectonical boundaries


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Finizola et al., JVGR 2002


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F ini zola et al., 2003


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temperature

CO2 soil degassing


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0 10 20 30 40 50 60 70 80 90 100Distance (m)

-200

-150

-100

-50

0

50

100

S P ( m V )

Profile 2538345 : Gauss Boaga (m)

N S

F2

F1

0 10 20 30 40 50 60 70 80 90 100Distance (m)

-150

-100

-50

0

50

S P ( m V )

Profile 2538365 : Gauss Boaga (m)N S

F1

F2


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Finizola et al., Bull. Volcanol. (2003)


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Finizola et al.,Bull. Volcanol. (2003)

Identification of


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Finizola et al.,Bull. Volcanol. (2003)

Identification ofpreferential

fluid flow

F1 Anomaly !!!


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y


F1 Anomaly !!!


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y



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SP MAXIMUM

and2002-2003 Stromboli

Eruptive crisis ?


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GPS and EDM Stations


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SP

T

ERT

CO2

Electric Resistivity Tomography:


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y g p y8 reels of 25 kg each one - 1280m - 64 electrodes

Application of Ohm's


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pplaw in 3D

U = R x I

Field work


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Field work


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Material min-max Typical value

Scoriae 500 - 30 000 .m 2000 .m

Metal 10 -8 - 10 -7 .m 10 -7 .m

Water (river) 10 - 300 .m 100 .m

Water (sea) 0,2 .m 0,2 .m

Air 10 000 - .m Asphalt 2 000 - 10 000 .m 5 000 .m

Resistivity of different materials

CO2 soil measurements with an accumulation2


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chamber method : CO 2 fluxes in g/m 2.d

CO2 soil concentration measurements


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Temperature soil measurements at 30cm depth


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Electric Resistivity Tomography,


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Self-Potential,CO 2 soil flux,

and soil Temperature at Vulcano

Marianna Balasco (IMAA-CNR, Potenza, Italy)

Angela Perrone (IMAA-CNR, Potenza, Italy)

Sabatino Piscitelli (IMAA-CNR, Potenza, Italy)

Enzo Rizzo (IMAA-CNR, Potenza, Italy)

Tullio Ricci (Universit Roma tre, Italy)

Nicolo Carzaniga (Universit di Milano, Italy)

Matteo Rossi (Universit di Milano, Italy)

Fabio Di Gangi (INGV-Palermo, Italy)

Julie Morin (LGSR-IPGP, Runion, France)

Anthony Finizola (LGSR-IPGP, Runion, France)

Agns Crespy (CEREGE, Aix, France)

Andr Revil (Colorado School of Mines, USA)

Barbara Suski (Universit de Lausanne, Switzerland)

Svetlana Byrdina (LGIT, Chambry, France)

Stphanie Barde Cabusson (INGV Roma, Italy)

Emilie Roulleau (UQAM, Montral, Canada)


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Finizolaet al.,JVGR(2009)

A- A

profile

Coupling ERT, SP and T C


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SPmV)

Finizolaet al.,JVGR2009


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High Resolution Electric Resistivity Tomography


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Finizola et al., GRL (2006)

Electric resistivity tomography


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Hydrothermalsystem

Finizola et al., (2006)


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Revil, Finizola et al., JGR (2008)


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Importance of structural


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pboundaries


Importance of structural boundaries


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1.

Lithology

2.

Permeability



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Hydrothermal systems are often


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y yconstrained inside structural boundaries

Depth limit ?...


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Geological


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Geologicalphenomeno

affecting avolcanic edifice:

Investigation

depth up to450-500m

Revil, Finizola et al.,GJI (2011)


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Revil,Finizola et

al., GJI(2011)


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Revil, Finizola et al., GJI (2011)

Aquila, January 2012


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Tectonics andsedimentation


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Aquila, Janvier 2012

sedimentationprocesses:

Depth ofinvestigation up

to 700m

Application involcanology


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Vesuvius,March 2014

volcanology

Passage2D 3D


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Revil, Johnson, Finizola, GRL (2010)

2D 3D


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Revil, Johnson, Finizola, GRL (2010)

Application on Piton de la Fournaise


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Barde-Cabusson, Finizola et al., JVGR, 2012


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0 10 20 30 40 50 60 70 80 90 100Distance (m)

-200

-150

-100

-50

0

50

100

S P ( m V )


F2

F1

0 10 20 30 40 50 60 70 80 90 100Distance (m)

-150

-100

-50

0

50

S P ( m V )


F1

F2



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0 10 20 30 40 50 60 70 80 90 100Distance (m)

-200

-150

-100

-50

0

50

100

S P ( m V )


F2

F1

0 10 20 30 40 50 60 70 80 90 100Distance (m)

-150

-100

-50

0

50

S P ( m V )


F1

F2


April 2007 Piton de la Fournaise eruptive crisis


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Eruption of April 2 nd , 2007


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ruption du 2 avril 2007



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J. Perrin



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J. Perrin



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ruption du 2 avril 2007

J. Perrin



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J. Perrin



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J. Perrin



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J. Perrin



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J. Perrin



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Mov03461.mpg

Dolomieu caldera collapse 5-7 April 200


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31 October 2006

17 April 2007

Dolomieu caldera collapse


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0 10 20 30 40 50 60 70 80 90 100Distance (m)

-200

-150

-100

-50

0

50

100

S P ( m V )


F2

F1

0 10 20 30 40 50 60 70 80 90 100Distance (m)

-150

-100

-50

0

50

S P ( m

V )


F1

F2



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Dolomieu calderacollapse


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collapse


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Importance of SP Maximum


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0 10 20 30 40 50 60 70 80 90 100Distance (m)

-200

-150

-100

-50

0

50

100

S P ( m V )


F2

F1

0 10 20 30 40 50 60 70 80 90 100Distance (m)

-150

-100

-50

0

50

S P ( m

V )


F1

F2

Eruption of February 2005 (Envisat)


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Courtesely from Jean-Luc Froger

Eruption of February 2005 (Envisat)


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Courtesely from Jean-Luc Froger


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Accurate imaging ofweakness areas of a

Studies of fluidcirculation


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weakness areas of avolcano

Strategy toinstallation ofdeformation

monitoring equipment

circulation


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Vigilancia de los sistemas hidrotermales


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Temperature data logger


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Ricci, Finizola et al., Nature GoSciences

Submitted

Seismic crisis at Vulcano


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Ricci, Finizola et al., Nature GoSciences

Submitted


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Ricci Finizola et al Nature GoSciences Submitted


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Water-magma

I i


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Interaction

Gracias por su atencin


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Tomografa de Alta Resolucin yVi il i d l Si t Hid t l


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Laboratoire GoSciences Runion

Vigilancia de los Sistemas Hidrotermales

Anthony Finizola

Documents

Anthony Finizola