The Journal of the Geological Society of Japan
Online ISSN : 1349-9963
Print ISSN : 0016-7630
ISSN-L : 0016-7630
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Discovery of an early Middle Pleistocene marker tephra around the Ariake Bay area, Southwest Japan
Shoichi ShimoyamaHirohisa MatsuuraKiyohide MizunoMasakazu KubotaTakenori HinoTohru DanharaHideki IwanoTohru YamashitaTakashi Ninomiya
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2012 Volume 118 Issue 11 Pages 709-722

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Abstract
An early Middle Pleistocene marker tephra has been found in sediment cores and outcrop in and around the Chikushi Plain of southwestern Japan. This tephra has been correlated to the Yufugawa pyroclastic flow deposits that erupted from East Kyushu at about 0.6 Ma using mineral assemblages, refractive indices, chemical components, and fission track ages.
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© 2012 by The Geological Society of Japan
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