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 Gilles Peltzer, Professor of Geology and Geophysics

I work on understanding processes governing the deformation of the Earth's crust at various temporal scales and spatial scales ranging from a single fault structure to a continent. The research is essentially based on observations of past deformation recorded in the surface morphology of fault zones and of current deformations using the space based geodetic technique of Synthetic Aperture Radar Interferometry (InSAR). More specifically the research covers the following fields:

• Deformation processes of continents. Nature and rate of current deformations in the India-Asia collision zone. Role of faulting in continental deformation. Area of study: Central Asia, Tibet, Mongolia.
• Earthquakes: co-seismic, post-seismic, and inter-seismic deformation near earthquake faults. Poro-elastic and visco-elastic processes triggered by co-seismic stress changes. Area of study: Western US, Central Asia.
• Faulting and other deformation processes at spreading centers. Relation between fault activity and volcanic activity in the Asal Rift. Area of study: Afar Depression.

B.S. Engineering, 1979, Ecole Polythechnique, Paris, France

Doctorat 3eme cycle, 1983, Institut de Physique du Globe, University of Paris VII, France

Doctorat d'Etat, 1987, Institut de Physique du Globe, University of Paris VII, France

Peltzer, G., P. Rosen, F. Rogez, and K. Hudnut, Postseismic rebound in fault step-overs caused by pore fluid flow, Science, 273, 30 August, 1996.

Peltzer, G., P. Rosen, F. Rogez, and K. Hudnut, Poro-elastic rebound along the Landers 1992 surface rupture, J. Geophys. Res., 103, 30,131-30,145, 1998.

Peltzer G., F. Crampe, and G. King, Evidence of nonlinear elasticity of the crust from the Mw7.6 Manyi (Tibet) earthquake, Science, 286, 272-276, 1999.

Pollitz F., G. Peltzer, and R. Burgmann, Mobility of continental mantle: Evidence from postseismic geodetic observations following the 1992 Landers earthquake, J. Geophys. Res., 105, 8035-8054, 2000.

Bowden, G.W., W. Thatcher, R.S. Stein, K.W. Hudnut, and G. Peltzer, Tectonic contraction across Los Angeles after removal of groundwater pumping effects, Nature, 412 (6849), 812-815, 2001.

Peltzer G., F. Crampe, S. Hensley, and P. Rosen, Transient strain accumulation and fault interaction in the Eastern California Shear Zone, Geology, 29 (11), 975-978, 2001.

Peltzer G., F. Crampe, and P. Rosen, The Mw7.1 Hector Mine, California earthquake: Surface rupture, surface displacement field, and fault slip solution from ERS SAR data, CR. Acad. Sci. A 333 (9), 545-555, 2001.

Donnellan A., J. Parker, and G. Peltzer, Combined GPS and InSAR models of postseismic deformation from the Northridge earthquake, Pure and App. Geophys., 150 (10), 2261-2270, 2002.

Argus D., M. Heflin, G. Peltzer, F. Crampe, and F. Webb, Interseismic strainaccumulation and anthropogenic motion in metropolitan Los Angeles, J. Geophys. Res., 110, B04401, doi:10.1029/2003JB002934, 2005.

Lasserre, C., G. Peltzer, Y. Klinger, J. Van der woerd, and P. Tapponnier, Coseismic deformation of the 2001 Mw=7.8 Kokoxili earthquake in Tibet, measured by SAR interferometry, J. Geophys. Res., 110, No. B12, B12408, doi:10.1029/2004JB003500, 2005.

Taylor, M. and G. Peltzer, Current slip rates on conjugate strike slip faults in Central Tibet using Synthetic Aperture Radar Interferometry, J. Geophys. Res., B12402, doi:10.1029/2005JB004014, 2006.

Doubre, C. and G. Peltzer, Fluid-controlled faulting process in the Asal Rift, Djibouti, from 8-year radar interferometry observations, Geology, V. 35, No. 1, 69-72, 2007.

Jelena Tomic

Sara Cina (co-advised)