Chemical fractionation of the lunar regolith by impact melting

Details Chemical fractionation of the lunar regolith by impact melting Chemical fractionation of the lunar regolith by impact melting

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975sci...190..380a&link_type=abstract

Science, vol. 190, Oct. 24, 1975, p. 380, 381.

Computer Science

1

Geochemistry, Lunar Composition, Lunar Soil, Metamorphism (Geology), Meteorite Collisions, Chemical Composition, Fractionation, Heat Transfer, Iron, Magnesium, Melting, Micrometeorites, Phosphorus, Potassium, X Ray Analysis

Scientific paper

Impact-produced agglutinitic glass in both lunar highland and mare soils is enriched in mafic elements, in potassium, phosphorus, and sulfur, and in most lithophile elements, whereas it is depleted in plagioclase components including europium. It is proposed that the chemical fractionation is the result of a multistage partial-melting mechanism that accompanies micrometeoroid impacts into soils. The process would be expected to occur on solar system bodies that have an impact-produced regolith.

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