Pairing Among the EET87503 Group of Howardites and Polymict Eucrites

Mathematics – Logic

Scientific paper

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Meteorites, Breccia, Meteoritic Composition, Mineralogy, Achondrites, Antarctic Regions, Collection, Glacial Drift, Ice

Scientific paper

The ten HED polymict breccias EET82600, EET87503, EET87509, EET87510, EET87512, EET87513, EET87518, EET87528, EET87531, and EET92022 were found over a broad area in the Elephant Moraine collecting region of Antarctica. Locations are scattered among the Main (Elephant Moraine), Meteorite City, and Texas Bowl icefields and the Northern Ice Patch. It was previously suggested that these polymict breccias are paired. However, degree of terrestrial alteration among these meteorites varies from relatively pristine (type A) to extensively altered (type B/C) and there are textural, mineralogical, and compositional differences. This study is a reevaluation of the pairing of these meteorites.

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