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Cosmochemistry

Rebecca Fischer

Rebecca Fischer

Clare Boothe Luce Assistant Professor of Earth and Planetary Sciences

Accretion, core formation, and composition of the deep interiors of Earth and other terrestrial planets. She combines high-pressure, high-temperature mineral physics experiments with planetary-scale modeling.

Fischer received a B.A. in Earth and Planetary Sciences and Integrated Science from Northwestern University in 2009, and a Ph.D. in Geophysical Sciences from the University of Chicago in 2015.

Research Group Coordinator: Stephanie Clayman

Fischer Group Website
Office location: Geological Museum 204C
Mailing address: 20 Oxford St., Cambridge, MA 02138
rebeccafischer@g.harvard.edu
p: 617-384-6992

Reginald A. Daly Postdoctoral Research Fellowship - Accepting Applications

October 10, 2023

Department of Earth and Planetary Sciences 
Harvard University 
Reginald A. Daly Postdoctoral Research Fellowship 


The Department of Earth and Planetary Sciences at Harvard University invites applicants for the Reginald A. Daly Postdoctoral Research Fellowship.  

The Department seeks candidates in the broad field of Earth and Planetary Sciences including but not limited to geology, geochemistry, geobiology, geodynamics, petrology,...

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2023 Oct 30

EPS Colloquium - Marc Hirschmann, University of Minnesota

12:00pm to 1:00pm

Location: 

Geo Mus 102 (Haller Hall) and Zoom

The Deep Earth Oxygen Cycle

Earth’s mantle has been oxidized compared to its cosmochemical building blocks since the earliest Hadean. This oxidation is linked to Earth’s initial differentiation, including processes in magma oceans, but these remain poorly understood. During its subsequent evolution to the present, Earth has developed a substantial oxidized surface reservoir that amounts to approximately 20% of the oxidative power of the accessible Earth, with the other 80% remaining in the mantle. This surface reservoir is essential to the modern surface environment, but...

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UM3

Dr. Ursula B. Marvin 1921 - 2018

February 20, 2018

We are sad to note the recent passing of our colleague, Ursula B. Marvin.  Dr. Marvin recieved her PhD in geology from Harvard in 1969 and worked in our department for many years researching the mineralogy of meteorites and lunar samples.

Notably, decades before receiving her PhD, she was the first female research assistant in Harvard's Geology Department.  Quoting from a Smithsonian web page: "Geology lit a fire. I fell in love with it the first week." Considered an unacceptable profession for women, when Dr. Marvin approached her (Tufts) geology professor...

Read more about Dr. Ursula B. Marvin 1921 - 2018