Title Transcription | シマネケン オオダシ ニマチョウ コトガハマ シュウヘン ノ チシツ
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Title Alternative (English) | Geology around the Kotogahama beach, Nima-cho, Oda City, Shimane Prefecture
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File | |
language |
jpn
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Author |
Hayashi, Hiroki
Department of Geoscience, Interdisciplinary Graduate School of Science and Engineering, Shimane University
Komura, Tetsuya
Graduate School of Shimane University
Ohira, Hiroto
Department of Geoscience, Interdisciplinary Graduate School of Science and Engineering, Shimane University
Sampei, Yoshikazu
Department of Geoscience, Interdisciplinary Graduate School of Science and Engineering, Shimane University
Nomura, Ritsuo
Faculty of Education, Shimane University
Kawano, Shigenori
Tochigi Prefectural Museum
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Description | The Kotogahama beach in Oda City, Shimane Prefecture is one of the famous singing sand beaches of Japan. We investigated the geology around the Kotogahama beach to clarify the origin and evolution of singing sand. The stratigraphy of the study area is composed of the Miocene Kuri Formation, Plio-Pleistocene Tsunozu Formation, Pleistocene Oe-Takayama Volcanic Rocks, old fan deposits, terrace deposits, Sashimi Formation, and Holocene deposits in ascending order. Among them, the Kuri Formation, which mainly consists of pyroclastic rocks, is most common in the study area. Zircon fission-track dating for the rhyolitic pumice tuff of the Kuri Formation suggested an age of 15.8 ± 0.6 Ma. CNS and microfossil analyses of the muddy layers of the Kuri Formation also suggest that this formation comprises marine and fresh-water deposits. The geologic structure of the Kuri Formation in the Kotogahama area is characterized by a gentle syncline and anticline with a WNW-ESE trend. The shape of the Kotogahama basin corresponds well to the strike of the Kuri Formation. The geomorphology of the Kotogahama beach is primarily controlled by the half-basin structure of the Kuri Formation.
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Subject | Kotogahama
Singing sand
Oda City
Shimane Prefecture
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Journal Title |
島根大学地球資源環境学研究報告
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Volume | 34
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Start Page | 77
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End Page | 88
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ISSN | 13439774
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Published Date | 2016-03-05
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NCID | AA11455176
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DOI(SelfDOI) | |
Publisher | 島根大学大学院総合理工学研究科地球資源環境学教室
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NII Type |
Departmental Bulletin Paper
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Format |
PDF
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Text Version |
出版社版
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Gyoseki ID | e28947
e28943
e28941
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OAI-PMH Set |
Interdisciplinary Graduate School of Science and Engineering
Faculty of Education
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他の一覧 |