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Caltech
Division of Geological and Planetary Sciences
Michael L. Black
Systems Administrator/Computing Analyst
Geophysics; 
Geoffrey A. (Geoff) Blake
Professor of Cosmochemistry and Planetary Sciences and Professor of Chemistry
Geochemistry;  Planetary Science; 
Belinda P. Blakley
Research Assistant
Planetary Science; 
Vine Blankenship
Graduate Student
Environmental Science and Engineering; 
Anthony Bloom
Visitor in Environmental Science and Engineering
Environmental Science and Engineering; 
Aleen Boladian
Division Operations Officer
David B. (Dave) Bonan
Postdoctoral Scholar Research Associate in Environmental Science and Engineering
Environmental Science and Engineering; 
Gabriele Bozzola
Senior Software Engineer
Environmental Science and Engineering; 
Renato Braghiere
Research Scientist
Environmental Science and Engineering; 
Samuel Brenner
Postdoctoral Scholar Research Associate in Environmental Science and Engineering
Environmental Science and Engineering; 
Michael E. (Mike) Brown
Richard and Barbara Rosenberg Professor of Planetary Astronomy; Terence D. Barr Leadership Chair, Center for Comparative Planetary Evolution; Director, Caltech Center for Comparative Planetary Evolution
Planetary Science; 
Ian Brunton
Graduate Student
Planetary Science; 
Claire E. Bucholz
Professor of Geology
Geology; 
Gerrit Budde
Visiting Associate in Geochemistry
Geochemistry; 
Julian J. Bunn
Principal Computational Scientist
Geophysics; 
Donald S. Burnett
Professor of Nuclear Geochemistry, Emeritus
Geochemistry; 
John P. Buwalda
In Memoriam; Chairman, Division of Geology, 1925-47.
Leticia Calderon
Senior Administrative Assistant
Joern Callies
Professor of Oceanography and Environmental Science
Environmental Science and Engineering; 
Maria Camarca
Graduate Student
Planetary Science; 
Ian Campbell
In Memoriam; Acting Chairman, Division of Geology, 1951-1952
Margaret Carlos
Grants Manager and Business Manager Associate
Geochemistry;  Geology; 
Enzo Carrascal Marquez
Graduate Student
Geology; 
Rachel E. Caulfield
Research Assistant
Swaroop Chandra
Postdoctoral Scholar Research Associate in Planetary Science
Planetary Science; 
Jordan Chastain
Graduate Student
Geobiology; 
Shang-Lin E. Chen
Data Archivist & System Administrator
Sihe Chen
Graduate Student
Planetary Science; 
Zhiang Chen
Postdoctoral Scholar Research Associate in Geophysics
Geophysics; 
Zhiyi Chen
Graduate Student
Geochemistry; 
Jinhui Cheng
Postdoctoral Scholar Research Associate in Geology
Geology; 
Cassie Ching
Communications and Events Coordinator
Madeline E. (Maddy) Christensen
Undergraduate
Planetary Science; 
Costa Christopoulos
Graduate Student
Environmental Science and Engineering; 
Robert W. Clayton
Professor of Geophysics, Emeritus
Geophysics; 
Elizabeth S. Cochran
Visiting Associate in Geophysics
Jennah Colborn
Max L. Coleman
Visitor in Geochemistry
Geochemistry; 
Jim Collister
Research Scientist
Scott Conn
Graduate Student
Environmental Science and Engineering; 
Stephanie A. Connon
Senior Research Scientist
Geobiology; 
John D. Crounse
Lead Staff Scientist
Environmental Science and Engineering; 
Emy D'Sa
Grants Manager Assistant
Geochemistry;  Geology; 
Emma Dahl
Postdoctoral Scholar Research Associate in Planetary Science
Planetary Science; 
Nathan F. Dalleska
Lead Laboratory Administrator
Environmental Science and Engineering; 
Rachael Danyew
Grants Manager Assistant
Planetary Science; 
Chloe N. Daudon
Visitor in Geology
Geology; 
Ryleigh Davis
Graduate Student
Planetary Science;