Mathematics – Logic
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988gecoa..52.2085l&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 52, Aug. 1988, p. 2085-2090.
Mathematics
Logic
3
Bediasites, Binary Mixtures, Data Correlation, Tektites, Igneous Rocks, Lithology, Statistical Analysis
Scientific paper
This paper describes a statistical method for establishing a hypothetical source material from the percentage, or 'closed,' data on the composition of bediasites. The method was used to identify endmembers, determine the minimum number of lithologic/geochemical endmembers contributing to the bediasite compositions, and estimate the major-element chemistries of those endmembers, using data on nine major oxides of 31 bediasite samples. The data suggest that the major-element chemistry and the correlations among major-element ratios in bediasites cannot be explained solely as an effect of selective volatilization of a single parent material. However, a mixture of just two endmembers does satisfy the data. It is concluded that the most probable two endmembers are chemically similar to a subarkose and a residual clay enriched in Al and Fe.
Love Karen M.
Woronow Alex
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