AGU SESSION U018 – UPSTAIRS DOWNSTAIRS: CONSEQUENCES OF INTERNAL EVOLUTION FOR THE HABITABILITY OF PLANETARY SURFACES

Session U018
Session Description:

The chemistry and physics of planetary interiors shapes and is shaped by conditions at their surfaces. The nature and extent of these interactions are not well understood. For example, in Earth history, the transition from a reduced to an oxidizing surface environment after 2.4 Ga, which paved the way for complex life, may have been modulated by changes in the redox state of mantle-derived gases. On Earth-like exoplanets, variations in planetary mass and composition affect the prospects for life, and for its detectability, in ways that have barely been considered. This session seeks to bring together geochemists, geophysicists, geobiologists, and others who are building knowledge about the complex relationships between the surface habitability and internal evolution of Earth and Earth-like worlds.

Conveners:
Ariel D. Anbar (ASU)
Christopher Ballentine (Oxford)
David Catling (U. Washington)
Christy Till (ASU)

Confirmed Invited Speakers:
Ben Black
Lindy Elkins-Tanton
Kurt Konhauser
Lee Kump
Adrian Lenardic
Charles Langmuir
Diana Valencia
John Wade

Abstract deadline: August 6, 2014

To submit, go to:

https://agu.confex.com/agu/fm14/u/papers/index.cgi?sessionid=3709

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