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Martian Meteorite Ages and Implications for Martian Cratering HistoryNew radiometrically determined ages of Martian meteorites add to the growing number with crystallization ages <~ 1.4 Ga. The observation of mainly geologically young ages for the Martian meteorites, the only exception being the ~4.5 Ga ALH84001 [1], is paradoxical when viewed in context of a Martian surface thought to be mostly much older as inferred from the surface density of meteorite craters [2]. There appears to be at least a twofold difference between the observed ages of Martian meteorites and their expected ages as inferred from the ages of Martian surfaces obtained from crater densities.
Document ID
20080026045
Acquisition Source
Johnson Space Center
Document Type
Extended Abstract
Authors
Nyquist, Laurence E.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 24, 2013
Publication Date
May 21, 2006
Subject Category
Geophysics
Meeting Information
Meeting: Workshop on Surface Ages and Histories
Location: Houston, TX
Country: United States
Start Date: May 21, 2006
End Date: May 23, 2006
Sponsors: Lunar and Planetary Inst.
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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