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Geochemical relationships between some pallasites and iron meteorites

Published online by Cambridge University Press:  05 July 2018

Edward R. D. Scott
Edward R. D. Scott*
Affiliation:
Department of Mineralogy and Petrology, University of Cambridge, Downing Place, Cambridge CB2 3EW
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Summary

Published analyses for 14 trace and minor siderophilic elements have been interpreted to indicate a close relationship between the IIIAB iron meteorites and the main group of pallasites. These two groups respectively account for about 32 and 75 % of all irons and pallasites. The composition of the metal in the main group pallasites is very close to that calculated for the liquid after 80 % of a IIIAB iron melt has fractionally crystallized. The pallasites probably formed by the intrusion of residual molten metal from the core into a surrounding olivine mantle.

Type
Research Article
Information
Mineralogical Magazine , Volume 41 , Issue 318 , June 1977 , pp. 265 - 272
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1977

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