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*Shumpei Onimaru
Geology Lab,University of Utsunomiya
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Yoshiaki Aita
Geology Lab,University of Utsunomiya
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Katsutaka Nakazawa
Geology Lab,University of Utsunomiya
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Satoshi Yamakita
Faculty of Education, University of Miyazaki
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Atsushi Takemura
Hyogo University of Teacher Education
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Rie Hori
Department of Earth Science, Faculty of Science, University of Ehime
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Satoshi Takahashi
Department of Earth and Planetary Science, University of Tokyo
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Bernhard K. Sporli
University of Auckland,New Zealand
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Hamish J. Campbell
GNS Science, Lower Hutt, New Zealand