Computer Science
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984gecoa..48..641j&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 48, April 1984, p. 641-648.
Computer Science
17
Basalt, Meteoritic Composition, Petrology, Chondrites, Chromium, Magma, Melting, Olivine, Phase Diagrams, Pyroxenes, Spinel, Sulfides, Vanadium, Meteorites, Eucrites, Parent Bodies, Composition, Mantle, Origin, Eucrites, Abundance, Refractory Elements, Models, Element Ratios, Partition Coefficients, Magnesium, Silicon, Scandium, Mantle, Juvinas, Sioux County, Partial Melting, Comparisons, C3 Chondrites
Scientific paper
Previous estimates of the composition of the EPB have tacitly assumed chondritic abundances of refractory LIL elements. A model is presented here which utilizes refractory element ratios instead. Consideration of these ratios and of known olivine-liquid partition coefficients for Sc, Mg and Si imply that the EPB mantle may be accurately modeled as a simple mixture of 25 percent eucrite + 75 percent olivine. The model also implies that eucrites such as Juvinas and Sioux County were derived by large degrees of partial melting (20-30 percent). Comparison of the model EPB mantle to known meteorite classes indicates a similarity between the element abundances of the EPB and C3 chondrites.
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