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New Perspectives on Ancient Mars

Solomon, Sean C. and Aharonson, Oded and Aurnou, Jonathan M. and Banerdt, W. Bruce and Carr, Michael H and Dombard, Andrew J. and Frey, Herbert V. and Golombek, Matthew P. and Hauck, Steven A., II and Head, James W., III and Jakosky, Bruce M. and Johnson, Catherine L. and McGovern, Patrick J. and Neumann, Gregory A. and Phillips, Roger J. and Smith, David E. and Zuber, Maria T. (2005) New Perspectives on Ancient Mars. Science, 307 (5713). pp. 1214-1220. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20130129-135949970

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.1101812 DOIArticle
http://www.sciencemag.org/content/307/5713/1214PublisherArticle
ORCID:
AuthorORCID
Aharonson, Oded0000-0001-9930-2495
Additional Information:© 2005 American Association for the Advancement of Science. This paper began as a series of scientific discussions held at meetings of the Mars Orbiting Laser Altimeter team on the Mars Global Surveyor mission. We thank J. Dickson, L. Montesi, and J. Roark for assistance with figure preparation. Support for this paper has been provided by NASA, through the Mars Exploration Program, the Planetary Geology and Geophysics Program, and the NASA Astrobiology Institute.
Funders:
Funding AgencyGrant Number
NASAUNSPECIFIED
Issue or Number:5713
Record Number:CaltechAUTHORS:20130129-135949970
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130129-135949970
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36660
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:30 Jan 2013 21:39
Last Modified:03 Oct 2019 04:40

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