New Perspectives on Ancient Mars

S.C. Solomon; O. Aharonson; J.M. Aurnou; W. B. Banerdt; Michael H. Carr; A. J. Dombard; H. V. Frey; Matthew P. Golombek; S.A. Hauck II; J.W. Head; Bruce M. Jakosky; C.L. Johnson; P.J. McGovern; G.A. Neumann; R.J. Phillips; D.E. Smith; Maria Zuber

doi:10.1126/science.1101812

New Perspectives on Ancient Mars

Science

By: S.C. Solomon, O. Aharonson, J.M. Aurnou, W. B. Banerdt, Michael H. Carr, A. J. Dombard, H. V. Frey, Matthew P. Golombek, S.A. Hauck II, J.W. Head, Bruce M. Jakosky, C.L. Johnson, P.J. McGovern, G.A. Neumann, R.J. Phillips, D.E. Smith, and Maria Zuber

https://doi.org/10.1126/science.1101812

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Abstract

Mars was most active during its first billion years. The core, mantle, and crust formed within ∼50 million years of solar system formation. A magnetic dynamo in a convecting fluid core magnetized the crust, and the global field shielded a more massive early atmosphere against solar wind stripping. The Tharsis province became a focus for volcanism, deformation, and outgassing of water and carbon dioxide in quantities possibly sufficient to induce episodes of climate warming. Surficial and near-surface water contributed to regionally extensive erosion, sediment transport, and chemical alteration. Deep hydrothermal circulation accelerated crustal cooling, preserved variations in crustal thickness, and modified patterns of crustal magnetization.

Additional publication details
Publication type	Article
Publication Subtype	Journal Article
Title	New Perspectives on Ancient Mars
Series title	Science
DOI	10.1126/science.1101812
Volume	307
Issue	5713
Year Published	2005
Language	English
Publisher	AAAS
Contributing office(s)	Astrogeology Science Center
Description	8 p.
First page	1214
Last page	1220