Astrobiology

New insights into the possibility of hydrogen-driven subsurface biospheres on Earth and other planetary systems

by Alexis Templeton (University of Colorado, Boulder)

Europe/Stockholm
Nordensköldsalen, Geovetenskapens hus

Nordensköldsalen, Geovetenskapens hus

Description
Iron is one of the major rock-forming elements on planets such as Earth. When rocks from deep within the crust are tectonically exposed to water, large disequilibria between Fe(II) and the fluids results in electron flow that can power microbial life. I will discuss new insights into Fe-dependent microbial life in the Earth’s subsurface, and the potential importance of Fe geochemistry in sustaining life activity in rocky planetary systems where water might be present.