Staff Scientists

Conel Alexander

Conel M. O'D. Alexander

Staff Scientist

Cosmochemistry; isotopic chemistry and origin of interstellar grains

Alan Boss

Alan P. Boss

Staff Scientist

Theoretical astrophysics; stellar and planetary system formation; extrasolar planets formation and detection

Paul Butler

R. Paul Butler

Staff Scientist

Observational astrophysics; stellar spectroscopy; precision Doppler instrumentation; extrasolar planets; Sun-like stars; supergiants and Cepheid variable stars

Rick Carlson

Richard W. Carlson

Director

Isotope geochemistry; history and nature of chemical evolution of the Earth's crust and mantle; early history of the solar system

John Chambers

John E. Chambers

Staff Scientist

Planetary formation theory; planetary dynamics; extrasolar planets

Peter Driscoll

Peter E. Driscoll

Staff Scientist

Evolution of Earth’s core and magnetic field; magnetic polarity reversals; inner core structure; core-mantle coupling; tectonic-volatile cycling; tidal dissipation and orbital migration; planetary interiors, dynamos, and aeronomy; exoplanets

John A. Graham

John A. Graham

Staff Scientist Emeritus

Star formation; structure and evolution of galaxies; variable stars

Eric H. Hauri

Erik H. Hauri

Staff Scientist

Isotopic and chemical evolution of the Earth's deep interior; modeling of flow and melting in mantle plumes; high-pressure experimental petrology; secondary ion mass spectrometry

David James

David E. James

Staff Scientist Emeritus

Seismology; tectonophysics

Helene Le Mevel

Hélène Le Mével

Staff Scientist

Volcano deformation; Geodetic data analysis (GPS, InSAR); Volcanic unrest; Gravimetry; Numerical modeling of magmatic processes.

Alan T. Linde

Alan T. Linde

Staff Scientist Emeritus

Geophysics; seismology; tectonophysics

Larry Nittler

Larry R. Nittler

Staff Scientist

Cosmochemistry; presolar grains in meteorites; secondary ion mass spectrometry and planetary remote sensing

Diana C. Roman

Diana C. Roman

Staff Scientist

Source processes of volcanic earthquakes; volcano-fault interaction; structure and dynamics of magma transport and storage systems

I. Selwyn Sacks

I. Selwyn Sacks

Staff Scientist Emeritus

Geophysics; seismology; tectonophysics; core structure

Scott S. Sheppard

Scott S. Sheppard

Staff Scientist

Small bodies in the solar system; star, planet and solar system formation; brown dwarfs

Steven B. Shirey

Steven B. Shirey

Staff Scientist

Igneous petrology; isotope geochemistry; trace element geochemistry; geochemical evolution of the Earth's crust and mantle

Sean Solomon

Sean C. Solomon

On Leave

Planetary geology and geophysics; seismology; marine geophysics; tectonics; geodynamics

Fouad Tera

Fouad Tera

Staff Scientist Emeritus

Lunar, meteorite, and terrestrial isotope chronology; geochemistry

Peter van Keken

Peter E. van Keken

Staff Scientist

Thermal and chemical evolution of the Earth; causes and consequences of plate tectonics; finite element modeling of mantle convection, subduction zone dynamics and mantle plumes; integration of geodynamics with seismology, geochemistry and mineral physics; parallel computing; scientific visualization.

Lara Wagner

Lara S. Wagner

Staff Scientist

Broadband seismology; field seismology; seismic tomography; seismic anisotropy; scattered wave imaging; tectonics of convergent margins; evolution of continents and the effects of tectonic inheritance

Alycia Weinberger

Alycia J. Weinberger

Staff Scientist

Observational astrophysics; planet formation and circumstellar disks; young stars; high angular resolution imaging