Volatile Elements in Apollo 16 Samples: Possible Evidence for Outgassing of the Moon

Details Volatile Elements in Apollo 16 Samples: Possible Evidence for Outgassing of the Moon Volatile Elements in Apollo 16 Samples: Possible Evidence for Outgassing of the Moon

May 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973sci...180..858k&link_type=abstract

Science, Volume 180, Issue 4088, pp. 858-861

Physics

5

Scientific paper

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 2 × 10-4 of the cosmic ration, 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.

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