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ID 13875
JaLCDOI
Sort Key
4
Title Alternative
Depositional environments of the Katsuta Group, eastern Tsuyama Basin, Southwest Japan
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Author
Yamasaki, Ryo
Suzuki, Shigeyuki Kaken ID researchmap
Abstract
The Miocene Katauta Group of the Syohoku-cho area is subdivides into 6 members ; The Uetsuki Conglomerate Member, Nara Sandy Mudstone Member, Tai Gravelly Sandstone Member, Takatori Conglomerate Member, Ayabe Mudstone Member and Maruyama Mutstone Member from bottom to top. The unconformity between Miocene deposits and basement rocks in this area was traced to obtain geometry of the Miocene basin. Contour maps of the bases of the Miocene Yoshino Formation and Takakura Formation indicate paleo-topography. The obtained topography demonstrates a valley, which flowed to north-west, and a few islands and bays. It indicates that these Miocene successuions were deposited in the topography which resemble to the present Seto Inland.
Keywords
Katsuta Group
Tsuyama Basin
Miocene
geometry of basin
paleoenvironmental chage
Publication Title
Okayama University Earth Science Report
Published Date
2003-12-20
Volume
volume10
Issue
issue1
Publisher
岡山大学理学部地球科学教室
Publisher Alternative
Department of Earth Sciences Faculty of Science, Okayama University
Start Page
23
End Page
31
ISSN
1340-7414
NCID
AN10506284
Content Type
Departmental Bulletin Paper
OAI-PMH Set
岡山大学
language
日本語
Copyright Holders
岡山大学地球科学研究報告編集委員会
File Version
publisher
NAID
Eprints Journal Name
esr