14C ages for the Gotenba and Mabusegawa Debris Avalanche Deposits in the eastern foot of Fuji Volcano, Japan

YAMAMOTO Takahiro, KOBAYASHI Makoto

doi:10.9795/bullgsj.74.3_107

Bibliographic Information

Other Title

富士火山東山麓，御殿場・馬伏川岩屑なだれ堆積物の14C 年代

Abstract

We examined ¹⁴C dating and correlation of exotic tephra for newly obtained samples in the eastern foot of Fuji Volcano. Wood samples in the Gotenba Debris Avalanche Deposit (OYM201 and OYM201b) yielded ages of 2,490 ± 20 BP and 2,510 ± 20 BP, respectively, black soil immediately below the S-13 Pyroclastic Deposit (OYM202) were 2,860 ± 30 BP, black soil at the base of the Fuji Black Soil Layer (OYM203) yielded 8,520 ± 30 BP, and a wood chip in Mabusegawa Debris Avalanche Deposit (OYM205) were dated as 16,270 ± 50 BP. Felsic glass shards in the soil layer above the Mabusegawa Debris Avalanche Deposit were correlated with the Tachikawa Upper Glassy Ash. Based on the results, the Gotenba Debris Avalanche occured around 800 cal BC, and the Mabusegawa Debris Avalanche took place around 18,000 cal BC.

Journal

BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN

BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN 74 (3), 107-118, 2023-07-20

National Institute of Advanced Industrial Science and Technology, Geological Survey of Japan

Keywords

Details 詳細情報について

CRID: 1390015410758014976

DOI: 10.9795/bullgsj.74.3_107

ISSN: 2186490X; 13464272

Web Site: https://www.jstage.jst.go.jp/article/bullgsj/74/3/74_107/_pdf

Text Lang: ja

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JaLC
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<sup>14</sup>C ages for the Gotenba and Mabusegawa Debris Avalanche Deposits in the eastern foot of Fuji Volcano, Japan