Fluid inclusions in an osumilite-bearing granulite from Bunt Island in the Archean Napier Complex, East Antarctica: implications for a decompressional P-T path?

• Main Authors: Toshiaki Tsunogae, M. Santosh, Yasuhito Osanai, Masaaki Owada, Tsuyoshi Toyoshima, Tomokazu Hokada, Warwick A. Crowe
• Format: Report
• Language: English
• Published: Department of Geology, Rand Afrikaans University/Department of Natural Environmental Science, Kochi University/Department of Earth Sciences, Okayama University/Department of Earth Sciences, Yamaguchi University/Graduate School of Science and Technology, Niigata University/National Institute of Polar Research/Department of Geology and Geophysics, University of Western Australia 2003
• Subjects: Carbonic fluid inclusion; ultrahigh-temperature granulite; Bunt Island; Archean Napier Complex; East Antarctica; Napier; Bunt; Antarc*; Antarctica; Polar geoscience
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3122; http://id.nii.ac.jp/1291/00003122/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3122&item_no=1&attribute_id=18&file_no=1

We report high-density CO_2-rich fluid inclusions in garnet,orthopyroxene,and quartz from an osumilite-bearing aluminous granulite from Bunt Island of the Archean Napier Complex,East Antarctica.The melting temperatures of fluids lie in the range of -56.8 to -57.8゜C being close to the triple point fo...