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Volatile elements in Apollo 16 samples - Possible evidence for outgassing of the moon.Several Apollo 16 breccias, including one containing goethite, are strikingly enriched in volatile elements such as bromine, cadmium, germanium, antimony, thallium, and zinc. Similar but smaller enrichments are found in all highland soils. It appears that volcanic processes took place in the lunar highlands, involving the release of volatiles including water. The lunar thallium/uranium ratio is .0002 of the cosmic ratio, which suggests that the moon's original water content could not have exceeded the equivalent of a layer 22 meters deep. The cataclastic anorthosites at the Apollo 16 site may represent deep ejecta from the Nectaris basin.
Document ID
19730046568
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Krahenbuhl, U.
Ganapathy, R.
Morgan, J. W.
Anders, E.
(Chicago, University Chicago, Ill., United States)
Date Acquired
August 7, 2013
Publication Date
May 25, 1973
Publication Information
Publication: Science
Volume: 180
Subject Category
Space Sciences
Accession Number
73A31370
Funding Number(s)
CONTRACT_GRANT: NGL-14-001-167
Distribution Limits
Public
Copyright
Other

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