書誌事項
- タイトル別名
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- Futagoyama lava dome of Hakone volcano: an edifice formed by multiple eruptions
- フクスウカイ ノ フンカ デ ケイセイ サレタ ハコネ カザン フタゴヤマ ヨウガン ドーム
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The Futagoyama lava dome, one of the post-caldera central cones of Hakone volcano (Kanagawa, Japan), is though to have formed by a single eruption at 5 ka. However, in this study, we show that the dome formed over the course of at least three eruptions. We discovered a relatively old block-and-ash flow deposit (Hakone-Futagoyama Yamazaki block-and-ash flow deposit [Hk-FtY]) that originated from the Futagoyama lava dome, as indicated by its chemical composition and its age of 20,390 ± 40 yr BP. We also re-examined the source of the Shinanoya pyroclastic flow deposit, which was previously interpreted to be of Komagatake origin and was dated at 17,920 ± 320 yr BP (reference), and concluded that this deposit also originated from the Futagoyama lava dome. The recent eruptive history of Futagoyama suggests that its eruptions may have been synchronous with those of Kamiyama. In addition, the eruptive centers of Futagoyama and Kamiyama are aligned with each other along a linear trace.
収録刊行物
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- 地質学雑誌
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地質学雑誌 116 (4), 229-232, 2010
一般社団法人 日本地質学会
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詳細情報 詳細情報について
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- CRID
- 1390282681214367104
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- NII論文ID
- 130000413334
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- NII書誌ID
- AN00141768
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- COI
- 1:CAS:528:DC%2BC3cXmt1aqtrs%3D
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- ISSN
- 13499963
- 00167630
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- NDL書誌ID
- 10682270
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可