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安達太良火山西麓,酸川流域に分布するラハール堆積物 : 過去14000年間の層序・年代と堆積過程
Stratigraphy, Chronology and Depositional Processes of Lahar Deposits in the Sukawa River System, Adatara Volcano, Northeast Japan
2015
Bulletin of the Volcanological Society of Japan
Stratigraphy, Chronology and Depositional Processes of Lahar Deposits in the Sukawa River System, Adatara Volcano, Northeast Japan
Previously known lahar deposits along the Sukawa River, western slope of Adatara volcano, consist of at least 7 muddy (cohesive) units and were formed during the last 2500 years. This paper reports stratigraphy, chronology and depositional processes of the newly found lahar units that were deposited older than 2500 years ago. 14 C dating for wood fragments within lahar deposits and intercalated paleosol layers indicates that at least 18 lahar events occurred in the area during the last 14000
doi:10.18940/kazan.60.4_461
fatcat:nkcvv7mlo5cabciieiccysr2cm