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noble gases in the monahans chondrite and halite: ar-39 - ar-40 age, space exposure age, trapped solar gases, and neutron fluenceFor the Monahans chondrite and halite, we determined Ar-39 - Ar-40 ages of silicate = 4.53 Ga, halite > 4.3 Ga; a space exposure age of approx. 5 Ma; a regolith pre-irradiation; solar gas concentrations in the dark phase; and a regolith thermal neutron fluence.
Document ID
20000081234
Document Type
Conference Paper
Authors
Garrison, Daniel H.
(NASA Johnson Space Center Houston, TX United States)
Bogard, Donald D.
(NASA Johnson Space Center Houston, TX United States)
Date Acquired
August 19, 2013
Publication Date
March 1, 2000
Publication Information
Publication: Lunar and Planetary Science XXXI
Subject Category
Lunar and Planetary Science and Exploration
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20000080557Analytic PrimaryLunar and Planetary Science XXXI