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Diogenite exposure agesHe, Ne and Ar isotopes have been measured in six, and Al-26 in two diogenites. Cosmic-ray exposure ages corrected for shielding effects using Ne-22/Ne-21 ratios are generally concordant. Five diogenites have a group age of 14 Myr and three others may have a group age of 24 Myr, implying that two collisions may have produced 8 of the 9 diogenites.
Document ID
19770032713
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1016/0016-7037(77)90192-2
Authors
Herzog, G. F. (Rutgers University New Brunswick, N.J.; New York, State University, Stony Brook, N.Y., United States)
Cressy, P. J., Jr. (NASA Goddard Space Flight Center Earth Resources Branch, Greenbelt, Md., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 41
Subject Category
Lunar And Planetary Exploration
Accession Number
77A15565
Distribution Limits
Public
Copyright
Other

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