Volatile/mobile trace elements in Bholghati howardite

Details Volatile/mobile trace elements in Bholghati howardite Volatile/mobile trace elements in Bholghati howardite

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990gecoa..54.2177w&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 54, Aug. 1990, p. 2177-2181.

Mathematics

Logic

Achondrites, Breccia, Carbonaceous Chondrites, Petrology, Regolith, Trace Elements, Inclusions, Meteoritic Composition, Oxygen Isotopes

Scientific paper

Ag, Au, Bi, Cd, Co, Cs, Ga, In, Rb, Sb, Se, Te, Tl, U, and Zn by RNAA are determined in two kinds of material from the Bholghati howardite: a carbonaceous chondrite clast (BH-4) that originated by primary nebular condensation/accretion processes; whole-rock samples and clasts resulting from parent-body processes, especially igneous differentiation. Trace element contents in Bholghati whole-rock (matrix) samples and/or white eucritic clasts in it are high for an achondrite, and variable. These characteristics are indicative of random condensation of volcanic emanations admixed with preexisting eucrite, diogenite, and howardite layers in the HED parent body. Other HED samples show similar patterns, and the conclusion that these reflect extensive volcanism in an asteroidal-sized object is supported by other Consortium noble gas and cosmochronologic measurements.

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