PRELIMINARY RESULT FOR THE Sm-Nd WHOLE-ROCK AGE OF THE METAMORPHIC ROCKS FROM MOUNT PARDOE IN THE NAPIER COMPLEX, EAST ANTARCTICA

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概要

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• The Sm-Nd whole rock isochron age was determined for metamorphic rocks from Mount Pardoe, Napier Complex. Acidic gneiss (orthopyroxene-mesoperthite-quartz gneiss), being one of the main representative metamorphic rocks, gave an age of 2516±274 Ma with an initial ^<143>Nd/^<144>Nd ratio of 0.50914±0.00021. εNd values normalized to 2516 Ma for individual acidic gneiss range from -3.7 to -7.0. This Sm-Nd whole-rock isochron age indicates a major period of equilibration of the isotopic system on a whole-rock scale at 2516±274 Ma.

• 国立極地研究所の論文

著者

• Kagami H

  Graduate School Of Science And Technology Niigata University

• Osanai Yasuhito

  Department of earth sciences, Okayama university

• Osanai Yasuhito

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

• Osanai Yasuhito

  Department Of Earth And Planetary System Science Okayama University

• Osanai Yasuhito

  Division Of Evolution Of Earth Environments Kyushu University

• Osanai Yasuhito

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

• KAGAMI Hiroo

  Institute for Study of Earth's Interior, Okayama University

• Osanai Y

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

• TAINOSHO Yoshiaki

  Department of Natural Environment, Faculty of Human Development, Kobe University

• TAKAHASHI Yuhei

  Geological Survey of Japan, Hokkaido Branch

• Takahashi Yuhei

  Geological Survey Of Japan

• Takahashi Yuhei

  Geological Survey Of Japan Hokkaido Branch

• TAINOSHO YOSHIAKI

  Faculty of Human Development, Kobe University

• TSUCHIYA Noriyoshi

  Department of Resources Engineering, Faculty of Engineering, Tohoku University

• Tsuchiya N

  Tohoku Univ. Sendai

• Tsuchiya Noriyoshi

  Department Of Geoscience And Technology Graduate School Of Engineering Tohoku University

• IIZUMI SHIGERU

  Department of Science, Shimane University

• Tainosho Y

  Faculty Of Human Development Kobe University

• Iizumi Shigeru

  Department Of Geoscience Shimane University

• Tainosho Yoshiaki

  Department Of Natural Environment Faculty Of Human Development Kobe University

• Iizumi Shigeru

  Department Of Geology Shimane University

• IIZUMI SHIGERU

  Department of Geology and Mineralogy, Tokyo Kyoiku University

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