Computer Science
Scientific paper
Sep 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975metic..10..253s&link_type=abstract
Meteoritics, vol. 10, Sept. 30, 1975, p. 253-282. National Research Council of Canada
Computer Science
Achondrites, Chondrites, Factor Analysis, Meteoritic Composition, Stony Meteorites, Abundance, Geochemistry, Trace Elements
Scientific paper
Results are reported for an explorative study of the use of factor analysis in meteorite geochemistry. Forty-two major and trace elements in 80 previously analyzed stony meteorites were tabulated, the matrix was reduced to 30 elements in 55 meteorites due to incomplete data, and missing data were substituted by mean values in the achondrite, carbonaceous-chondrite, and (E+H+L+LL) groups. R-mode analysis with varimax rotation was carried out on these three groups as well as the whole set. The results for the three groups are shown to give little information of geochemical value, although the largest achondrite factor (lithophile elements) allows discrimination of eucrites, aubrites, diogenites, and howardites. Analysis of the whole set of 55 meteorites shows the variance to be dominated by a refractory-lithophile factor (Al, Mg, Ca, Zr, Sc, U, Th, La, Eu, Yb) and a volatile-chalcophile factor (Zn, Te, Cd, Bi, Tl).
Harmon Russell S.
Shaw Matthew D.
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