Mineralogy of scapolite from Skallen in the Lutzow-Holm Bay region, East Antarctica

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概要

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• Two types of zoned scapolite in calc-silicate gneisses from Skallen, East Antarctica, were found. One type varies from Me_<79> in the core to Me_<35> at the rim. Associated minerals are mainly diopside, pargasite and spinel. The other varies from Me_<33> in the core to Me_<57> at the rim. Associated minerals are mainly diopside, phlogopite and K-feldspar (Or_<95-99>). Scapolite in this specimen contains characteristically K, and the substitution of K in the M site is 8-12%. The unit cell dimensions of scapolite (Me_<42-45>) from Skallen are a=12.121 (1), c=7.585 (2) A, and those (Me_<77-83>) from Sri Lanka are a=12.164 (1), c=7.568 (1) A. These scapolites belong to different isomorphous series. It is likely that the zonation and K-substitution of scapolites from Skallen appear to be formed by a reaction with minerals in direct contact and/or fluids in later stage alteration.

• 国立極地研究所の論文

著者

• KUSACHI Isao

  Department of Earth Sciences, Faculty of Education, Okayama University

• Kusachi I

  Okayama Univ. Okayama Jpn

• Kusachi Isao

  Dep. Of Earth Sciences Fac. Of Education Okayama Univ.

• Kusachi Isao

  Department Of Earth Sciences Okayama University

• Kusachi Isao

  Department Of Earth Science Faculty Of Education Okayama University

• Osanai Yasuhito

  Department of earth sciences, Okayama university

• Hokada Tomokazu

  Department of Polar Science, School of Mathematical and Physical Sciences, The Graduate University f

• Kusachi Isao

  Department Of Earth Sciences Faculty Of Education Okayama Univresity

• OWADA Masaaki

  Department of Earth Sciences, Yamaguchi University

• TOYOSHIMA Tsuyoshi

  Graduate school of Science and Technology, Niigata University

• TSUNOGAE Toshiaki

  Department of Earth Sciences, University of Tsukuba

• Osanai Yasuhito

  Division Of Evolution Of Earth Environments Faculty Of Social Andcultural Studies Kyushu University

• Osanai Y

  Fukuoka Univ. Education Munakata Jpn

• Osanai Yasuhito

  Department Of Earth And Planetary System Science Okayama University

• Osanai Yasuhito

  Division Of Evolution Of Earth Environments Kyushu University

• Hokada Tomokazu

  Department Of Geology And Mineralogy Graduate School Of Science Kyoto University

• Hokada Tomokazu

  National Institute Of Polar Research 10-3 Midori-cho Tachikawa Tokyo 190-8518 Japan

• Crowe Warwick

  Department of Geology and Geophysics, University of Western Australia

• Crowe Warwick

  Department Of Geology And Geophysics University Of Western Australia

• Osanai Yasuhito

  Division Of Evolution Of Earth Environments Faculty Of Social And Cultural Studies Kyushu University

• Tsunogae Toshiaki

  Graduate School Of Science And Technology Niigata University

• Owada Masaaki

  Division Of Earth Sciences Graduate School Of Science And Technology Yamaguchi University

• Owada Masaaki

  Department Of Earth Sciences University Of Yamaguchi

• Hamamoto T

  Dia Consultants Co. Ltd. Aichi Jpn

• Hamamoto Takuji

  Graduate School Of Science And Technology Niigata University

• Osanai Y

  Division Of Evolution Of Earth Environments Faculty Of Social And Cultural Studies Kyushu University

• Crowe Warwicka.

  Department Of Geology And Geophysics University Of Western Australia

• Osanai Y

  Division Of Earth Sciences Faculty Of Social And Cultural Studies Kyushu University

• Osanai Yasuhito

  Division Of Earth Sciences Faculty Of Social And Cultural Studies Kyushu University

• Toyoshima Tsuyoshi

  Graduate School Of Science And Technology Niigata University

• Tsunogae T

  Univ. Tsukuba Ibraki Jpn

• Tsunogae Toshiaki

  Department Of Earth Evolution Sciences Graduate School Of Life And Environmental Sciences University

• Toyoshima Tsuyoshi

  Graduate School Of Science And Technology Earth Science Niigata University

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