ID | 13928 |
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Sort Key | 2
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Abstract | In eastern Chugoku area, Paleogene deposits have not been recognized until fission-track dating of so called "Mountain Gravels" was carried out (Suzuki et al. 1995). Two sedimentation events in Paleogene time (27Ma and 34-35Ma) are inferred by the F-T dating Major lithology of the Paleogene deposits in the study area is graved which is mainly composed of subrounded to rounded cobbles. The "Mountain Gravels" were previously thought to be lower Quaternary deposits. The "Mountain Gravels" is associsted with coal bearing mud, sand, gravel and breccia deposits.
The breccia deposits is distributed sporadically between the "Mountain Gravels" and basement rocks. The deposits are mainly composed of poorly sorted breccia and associated granitic sands. It is inferred that the breccia deposits are talus deposits.
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Keywords | Paleogene
breccia
talus deposits
fission-track dating
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Publication Title |
Okayama University Earth Science Report
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Published Date | 1996-09-20
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Volume | volume3
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Issue | issue1
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Publisher | 岡山大学理学部地球科学教室
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Publisher Alternative | Department of Earth Sciences Faculty of Science, Okayama University
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Start Page | 17
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End Page | 24
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ISSN | 1340-7414
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NCID | AN10506284
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Content Type |
Departmental Bulletin Paper
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OAI-PMH Set |
岡山大学
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language |
English
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Copyright Holders | 岡山大学地球科学研究報告編集委員会
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File Version | publisher
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NAID | |
Eprints Journal Name | esr
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