Trace Element Contents of Selected Antarctic Meteorites.I. Weathering Effects and ALH A77005, A77257, A77278 and A77299

Abstract We report data for volatile/mobile Ag, As. Au, Bi, Cd, Co, Cs, Cu, Ga, In, Rb, Sb, Se, Te, TI and Zn in exterior and/or interior samples of four Antarctic meteorites from the Allan Hills (ALH) : A77005 (unique achondrite) A77257 (ureilite) A77278 (L3) A77299 (113). Exterior samples reflect...

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Bibliographic Details
Published in:Zeitschrift für Naturforschung A
Main Authors: Biswas, Swarajranjan, Ngo, Hung T., Lipschutz, Michael E.
Format: Article in Journal/Newspaper
Language:English
Published: Walter de Gruyter GmbH 1980
Subjects:
Physical and Theoretical Chemistry
General Physics and Astronomy
Mathematical Physics
Allan Hills
Antarctic
Antarc*
Online Access:http://dx.doi.org/10.1515/zna-1980-0204
https://www.degruyter.com/view/journals/zna/35/2/article-p191.xml
https://www.degruyter.com/document/doi/10.1515/zna-1980-0204/xml
https://www.degruyter.com/document/doi/10.1515/zna-1980-0204/pdf
Description
Summary:Abstract We report data for volatile/mobile Ag, As. Au, Bi, Cd, Co, Cs, Cu, Ga, In, Rb, Sb, Se, Te, TI and Zn in exterior and/or interior samples of four Antarctic meteorites from the Allan Hills (ALH) : A77005 (unique achondrite) A77257 (ureilite) A77278 (L3) A77299 (113). Exterior samples reflect contamination and/or leaching by weathering but trace element (ppm-ppt) contents in interior samples seem reasonable for representatives of these rare meteoritic types. The A77005 achondrite seems related to shergottites; other samples extend compositional ranges previously known for their groups or types. With suitable precautions, Antarctic meteorite finds yield trace element data as reliable as those obtained from previously - known falls.

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