Extralunar materials in Cone-Crater soil 14141

Details Extralunar materials in Cone-Crater soil 14141 Extralunar materials in Cone-Crater soil 14141

Oct 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973gecoa..37.2349w&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 37, Issue 10, pp.2349-2353

Physics

1

Scientific paper

Radiochemical neutron activation analysis has been used to determine Ni, Zn, Ga, Ge, Cd, In, Ir and Au in duplicate samples of lunar soil 14141 and one additional replicate each of soils 14163 and 14259. The concentrations of extralunar trace elements Ni, Ge, Ir and Au in 14141 and 14163 are, respectively, about 69 and 82 per cent as high as those in 14259. Although most of the mass of 14141 appears to be ejecta from Cone Crater, a sizable contamination by mature Fra Mauro soil such as 14259 is also present. The siderophilic-element concentrations of the subregolith Fra Mauro materials are estimated to be 25 ± 25 per cent of those observed in 14259.

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