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Early Thermal History of Eucrites by Ar-39-Ar-40Ar-39-Ar-40 ages for Piplia Kalan (3.58 +/- 0.02 Ga) and two other eucrites indicate later impact resetting. Older Ar-39-Ar-40 ages exist for the Moama cumulate eucrite (4.42 +/- 0.01 Ga) and the PCA82502 (4.506 +/- 0.009 Ga) and PCA91007 non-brecciated eucrites. Additional information is contained in the original extended abstract.
Document ID
20010044892
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Bogard, D. D. (NASA Johnson Space Center Houston, TX United States)
Garrison, D. H. (NASA Johnson Space Center Houston, TX United States)
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Publication Information
Publication: Lunar and Planetary Science XXXII
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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