V, Cr, and MN in the earth, moon, EPB, and SPB and the origin of the moon - Experimental studies

Details V, Cr, and MN in the earth, moon, EPB, and SPB and the origin of the moon - Experimental studies V, Cr, and MN in the earth, moon, EPB, and SPB and the origin of the moon - Experimental studies

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53.2101d&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 53, Aug. 1989, p. 2101-2111.

Computer Science

34

Chromium, Earth Mantle, Lunar Evolution, Lunar Mantle, Manganese, Vanadium, Abundance, Chemical Composition, Liquid Metals, Planets, Earth, Moon, Meteorites, Parent Bodies, Origin, Formation, Vanadium, Chromium, Manganese, Abundance, Mantle, Eucrites, Comparisons, Shergottites, Partitioning, Depletion, Procedure, Volatiles, Lithophiles, Depletion, Pressure

Scientific paper

The abundances of V, Cr, and Mn inferred for the mantles of the earth and moon decrease in that order and are similar in both mantles (but distinct from those in the mantles of the Eucrite Parent Body and Shergottite Parent Body), suggesting a common origin for the mantles of the earth and the moon. This hypothesis was investigated on the basis of a comparison between the depletions of V, Cr, and Mn in the mantles of the earth and the moon, and the metal/silicate partition coefficients of these elements at 1260 C and 1 bar pressure among a S-bearing metallic liquid, a silicate melt, and a FeNi alloy. It was found that the earth and the moon depletions of V, Cr, and Mn are not correlated with metal/silicate partition coefficients; the V and Cr partitioned into S-rich metallic liquids under reducing conditions more strongly than Mn, consistent with the relative volatilities of these elements. This indicates that the depletion patterns of these elements in the mantles of the earth and moon cannot be attributed primarily to terrestrial core formation.

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