Yamato-82042: An unusual carbonaceous chondrite with CM affinities

• Main Authors: Grady,Monica M., Graham,A.L., Barber,D.J., Aylmer,D., Kurat,G., Ntaflos,T., Ott,U., Palme,H., Spettel,B.
• Format: Report
• Language: English
• Published: Department of Earth Sciences, The Open University/British Museum (Natural History)/Department of Physics, University of Essex/Department of Chemistry, Rutgers University/Naturhistorisches Museum/Naturhistorisches Museum/Max-Plank-Institute fur Chemie/Max-Plank-Institute fur Chemie/Max-Plank-Institute fur Chemie 1987
• Subjects: Yamato; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2131; http://id.nii.ac.jp/1291/00002131/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2131&item_no=1&attribute_id=18&file_no=1

The Yamato-82042 carbonaceous chondrite has been the subject of a consortium study, designed to determine its properties and hence attempt a more precise classification of the meteorite. Major and minor elemental abundance and oxygen isotope data indicate that the specimen is a CM chondrite, but on textural and petrologic grounds the meteorite is more akin to CI stones. It is possible that Y-82042 is the first CM1 chondrite recognized.