Petrology of Yamato-75261 meteorite: An enstatite (EH) chondrite breccia

• Main Author: Hiroko Nagahara
• Format: Report
• Language: English
• Published: Geological Institute, Faculty of Science, University of Tokyo 1991
• Subjects: Antarctic; Clayton; Yamato; Antarc*
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=4542; http://id.nii.ac.jp/1291/00004542/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=4542&item_no=1&attribute_id=18&file_no=1

Yamato-75261 is a breccia with a non-porphyritic clast embedded in the partly porphyritic matrix. The clast consists mainly of closely packed finegrained enstatite with interstitial material rich in Al. Metallic iron and troilite are rare. An anomalous Fe-Mn-Mg-Ca-Cr monosulfied, of which compositio...