Research Groups

Paul Asimow: Igneous Petrology

Thermodynamic and kinetic models of magmatic processes including adiabatic mantle melting and melt transport; the role of water in petrologic and geodynamic behavior of the mantle; melting and differentiation in the deep mantle and the early earth; experimental investigation of silicate liquids and minerals under static and dynamic high pressure; petrologic and geodynamic processes at mid-ocean ridges and back-arc basins.
 

Jean-Philippe Avouac: Tectonics and tectonic geomorphology

Active tectonics, geomorphic record of crustal deformation, measurement of crustal deformation from satellite imagery, investigation and modeling of orogenic processes and the seismic cycle, with a focus on the Himalayas.
 

John Eiler: Geochemistry

The isotope geochemistry of light elements (H, C, N, O and S), as applied to: the origin and evolution of igneous rocks; the origin and evolution of meteorites; planetary atmospheres; atmospheric and environmental chemistry; paleoclimate; and paleontology.
 

Bethany Ehlmann: Planetary geology and remote sensing

Spectroscopic analyses of planetary surface composition, chemical and physical weathering, environmental change on Earth and Mars, rock-microbe interactions, biomarker preservation, environmental science and policy.
 

Ken Farley: Noble gas geochemistry and cosmogenic dating

Rare gas composition of terrestrial materials, chemical evolution of the Earth's mantle and atmosphere, petrogenesis of oceanic lavas, low temperature thermochronometry, geologic record of interplanetary dust flux.
 

Woodward Fischer: Earth history

Evolution of oxygenic photosynthesis and the rise of atmospheric oxygen, origin of Archean and proterozoic iron formation, distribution and evolution of lipid biomarker synthesis, coupled behavior of redox and acid-base processes at critical transitions in Earth history.
 

John Grotzinger: Sedimentology and stratigraphy on Earth and Mars

Sedimentology, stratigraphy, geobiology, ancient surface processes on Earth and Mars, field-based investigations of depositional systems for the analysis of past processes, interactions between life and environment, and tectonic and climatic regimes.
 

Joseph Kirschvink: Geobiology

Geobiology; geophysics; paleomagnetism; paleoclimatology; biophysics; animal navigation; neurobiology; astrobiology.
 

Michael Lamb: Geomorphology and process sedimentology

Surface processes of Earth, Mars, and Titan including geomorphology, sedimentology, and fluvial morphodynamics.
 

George Rossman: Mineralogy

Spectroscopic methods applied to minerals which address trace hydrous components, metal ion site occupancy, color, ionizing radiation effects, nano-phases and X-ray amorphous materials.
 

Mark Simons: Geophysics and geodynamics

Theoretical and observational geodynamics, especially crustal deformation and mantle convection, radar interferometry, gravity field analysis, modeling of materials with complex rheologies.
 

Joann Stock: Geology and geophysics

Plate tectonics; structural geology; evolution of plate boundaries; stress and deformation in the lithosphere; physical volcanology; tectonics and regional structure of the Pacific-North America plate boundary in the Gulf of California and Salton Trough.
 

Edward Stolper: Origin and evolution of igneous rocks on the earth and other planets

Research interests center on studies of the origin and evolution of igneous rocks on the earth and other planets using experiment, theory, and field studies. Recent focuses include studies of Hawaii and other hot spot volcanoes, theory and modeling of the thermodynamics of mantle melting, oxygen isotopes as probes of mantle sources of magmas, the petrology of Martian meteorites, and the role of volatiles in island arc magmatism.
 

Victor Tsai: Mathematical geophysics and geomechanics

Solid earth geophysics, solid-fluid interactions, glacier physics, earthquake dynamics, imaging techniques, and wave propogation.
 

Brian Wernicke: Tectonic evolution of the continental lithosphere

Tectonic evolution of the continental lithosphere through judicious combination of field observation and geophysical and geochemical methods, physical processes governing the large-scale structural evolution of mountain belts, especially extension of the continental crust and processes in the deep lithosphere, GPS geodesy and neotectonics, especially earthquakes and slow episodic deformations revealed through comparison of geodetic and geologic measurements.