| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2023-04-26 |
| タイトル |
|
|
タイトル |
Characteristics of drift pumice clasts along the coast of the Japanese Islands: The AT tephra, representative source of drift pumice clasts |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Marine debris |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
drift pumice |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
volcanic glass |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
glass chemistry |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 著者 |
Hiramine, Reona
Aoki, Kaori
Ishimura, Daisuke
Suzuki, Takehiko
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
We analyzed the major element composition of volcanic glass shards in drift pumice clasts sampled from the Japanese coast before the 2021 eruption of Fukutoku-Oka-no-Ba (FOB). Consequently, it has been explained that the source volcanoes of some drift pumice clasts are Shikotsu, Toya, Towada, Hakone, Aso, Aira, Ata, Baegdusan volcanoes, and submarine volcanoes FOB and NNE of Iriomotejima (SVI). In particular, drift pumice clasts estimated from the Aira volcano were found in broad areas from the Amami-Oshima to the Shimokita Peninsula, the southern and northern limits of our sampling sites, respectively. Furthermore, the Aira-Tn tephra, erupted from Aira volcano, forming a wide pyroclastic flow plateau in the southern part of Kyushu Island. Therefore, we interpreted that the reworking process of pyroclastic flow deposits is one of the major mechanisms of the continuous supply of pumice clasts into the sea, regardless of whether volcanic activity continues. In addition, the presence of drift pumice clasts from the FOB and SVI suggests that pumice clasts from a single submarine volcanic eruption can remain on the coast for at least several tens to a hundred years. |
| 書誌情報 |
Geographical reports of Tokyo Metropolitan University
巻 58,
p. 87-94,
発行日 2023
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
03868710 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00200173 |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 出版者 |
|
|
出版者 |
Department of Geography Tokyo Metropolitan University |
20005-058-012.pdf (1.9 MB)
