Aluminum silicates in the Prince Olav and Soya Coasts, East Antarctica

• Main Authors: Yoshikuni Hiroi, Kazuyuki Shiraishi, Keizo Yanai, Koshiro Kizaki
• Format: Report
• Language: English
• Published: Institute of Earth Science, Faculty of Education, Kanazawa University/National Institute of Polar Research/National Institute of Polar Research/Department of Marine Sciences, Faculty of Science, Ryukyu University 1983
• Subjects: East Antarctica; Antarc*; Antarctica; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1472; http://id.nii.ac.jp/1291/00001472/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1472&item_no=1&attribute_id=18&file_no=1

This paper presents the regional distribution and textural features of aluminum silicates (kyanite, sillimanite, and andalusite) in the Prince Olav and Soya Coasts, East Antarctica. The data make it clear that the regional metamorphism in the region, probably Late Proterozoic in age, was of the medium-pressure type and that the regional metamorphic rocks locally underwent the retrograde alteration, including local development of andalusite, during the Early Paleozoic thermal event contemporaneous with the emplacement of granite and pegmatite.