Computer Science
Scientific paper
Nov 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975gecoa..39.1475w&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 39, Nov. 1975, p. 1475-1485.
Computer Science
5
Abundance, Apollo 16 Flight, Lunar Rocks, Lunar Soil, Trace Elements, Breccia, Cadmium, Gallium, Volatility, Zinc
Scientific paper
The duplicate and mean concentrations of eight trace elements (Ni, Zn, Ga, Ge, Cd, In, Ir, Au) in eight Apollo-16 soils, five rocks, and a metallic spherule were determined by radiochemical neutron-activation analysis (RNAA) following radiochemical separation. Data are presented and compared with analyses of Apollo-14 samples. The concentration of extralunar components in mature Apollo-16 soils is about 3.8%, and the samples contain a large amount of pre-Imbrium regolith. Volatiles, siderophiles, and cosmogenic isotopes are intercorrelated, largely as a result of mixing of North Ray crater ejecta having low concentrations with mature soils containing high concentrations. Light soils have higher concentrations of Zn, Ga, and Cd than dark mature and submature soils, which contain comparatively higher concentration of Sc and Fe. Volatility largely controls the distributions of Zn, Cd, and In in soils and soil breccias and probably affects the Ga distribution.
Baedecker Philip A.
Chou Chih-Lung
Robinson Karen L.
Wasson John T.
No associations
LandOfFree
Siderophiles and volatiles in Apollo-16 rocks and soils does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Siderophiles and volatiles in Apollo-16 rocks and soils, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Siderophiles and volatiles in Apollo-16 rocks and soils will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1376613