Heavy element affinities in Apollo 17 samples

Details Heavy element affinities in Apollo 17 samples Heavy element affinities in Apollo 17 samples

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975e%26psl..27..163a&link_type=abstract

Earth and Planetary Science Letters, vol. 27, no. 2, Sept. 1975, p. 163-169. AEC-NASA-supported research.

Other

Apollo 17 Flight, Heavy Elements, Lunar Soil, Trace Elements, Data Correlation, Halogens, Lead (Metal), Lunar Landing Sites, Thallium, Zinc

Scientific paper

Pb-204, Bi, Tl, and Zn in samples from the Apollo 17 site exhibit relationships not found in samples from other sites. Pb-204, Tl, and Zn in residues remaining after dilute acid leaching are correlated with one another. Orange soil 74220, which is enriched in Pb-204, Tl, and Zn, is included in these relationships. In addition, the submicron metallic phase generally associated with agglutinate formation is correlated with all three of these elements; this relationship has already been reported for Pb-204 in other samples. Thus, orange soil and agglutinates appear to be involved in concentrating heavy volatile metals. A process other than mixing is required to account for this. As a consequence of the isolation of the landing site by the surrounding massifs, local supply and recycling of volatile trace elements in soils may account for some of the interelement relations.

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