CONTRIBUTIONS OF VOLATILES TO THE VENUS ATMOSPHERE FROM THE OBSERVED EXTRUSIVE VOLCANIC RECORD: IMPLICATIONS FOR THE HISTORY OF THE VENUS ATMOSPHERE | The Twelfth Moscow Solar System Symposium

First Author

J. W. Head, III (Dept. of Earth, Environmental and Planetary Sciences, Brown University, Providence RI, USA)

Coauthor(s)

L. Wilson (Lancaster University, Lancaster, UK)

M. A. Ivanov (V. I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, Russia)

R. Wordsworth (Harvard University, Cambridge MA, USA)

Session

Venus

Brief Abstract Summary

We explore the age of Venus’ current runaway greenhouse atmosphere, assessing forward-modeling that predicts earlier Earth-like clement conditions, and undertake inverse modeling, using the observed geologic record. We find that the current atmosphere may be a “fossil atmosphere” dating from pre-tessera times.

Form of the Presentation

Oral