Discovery of an early Middle Pleistocene marker tephra around the Ariake Bay area, Southwest Japan

Discovery of an early Middle Pleistocene marker tephra around the Ariake Bay area, Southwest Japan

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...

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Veröffentlicht in:Chishitsugaku zasshi 2012/11/15, Vol.118(11), pp.709-722
Hauptverfasser: Shimoyama, Shoichi, Matsuura, Hirohisa, Mizuno, Kiyohide, Kubota, Masakazu, Hino, Takenori, Danhara, Tohru, Iwano, Hideki, Yamashita, Tohru, Ninomiya, Takashi
Format: Artikel
Sprache:eng ; jpn
Schlagworte:
Ariake Bay
Chikushi Plain
Marker tephra
Middle Pleistocene
Yufugawa pyroclastic flow deposits
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Beschreibung
Zusammenfassung: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.
ISSN:0016-7630
1349-9963
DOI:10.5575/geosoc.2012.0056