Petrogenesis of KREEP

Details Petrogenesis of KREEP Petrogenesis of KREEP

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976lpsc....7.2427m&link_type=abstract

In: Lunar Science Conference, 7th, Houston, Tex., March 15-19, 1976, Proceedings. Volume 2. (A77-34651 15-91) New York, Pergamon

Computer Science

9

Chemical Composition, Lunar Rocks, Petrology, Potassium, Rare Earth Elements, Trace Elements, Lunar Evolution, Olivine, Phosphorus, Rubidium Isotopes, Strontium Isotopes

Scientific paper

Solid/liquid distribution coefficients were experimentally determined for a number of trace elements for olivine, orthopyroxene, plagioclase and ilmenite. Major- and trace-element partitioning and relevant phase equilibria are used to study possible parent-daughter relationships between a number of highland samples and highly evolved KREEP-rich materials. A model is proposed in which low-K Fra Mauro basalt type material was produced by fractionation of large amounts of olivine and lesser amounts of plagioclase from undifferentiated lunar material at about 4.4 AE.

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