2024-03-28T21:36:07Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00020460
2022-12-14T03:46:03Z
1169:1170
Submarine canyon-fill slump deposits on the shelf environment of the Pliocene Dainenji Formation on the Pacific coast in Fukushima, northeastern Japan
陸棚に形成された海底谷を埋積したスランプ堆積物 : 東北日本南部福島県太平洋沿岸に分布する鮮新統大年寺層の例
小佐野, 由布子
保柳, 康一
近藤, はるか
柳沢, 幸夫
Dainenji Formation
submarine canyon
slump deposits
Pliocene
The Dainenji Formation is deposited on shelf environment and consists mainly of sandy siltstone and sandstone. It includes a number of volcanic ash layers, which serve as good key beds useful for precise correlation. Mappable units of submarine canyon-fill sediment are recognized in this area. A valley has a maximum depth of 100 m and is considered to be formed by submarine landslide, which took place after 2.7 Ma. Submarine canyon-fill sediments are composed of siltstone interbedded with thin sandstone layers, thick sandstone beds and slump deposits. Formation and filling of the submarine canyon might be controlled by climate cooling of latest Pliocene.
Article
堆積学研究. 64 : 101-105(2007)
journal article
日本堆積学会
2007-04-20
application/pdf
堆積学研究
64
101
105
1342-310X
AA11155966
https://soar-ir.repo.nii.ac.jp/record/20460/files/26400486_x2.pdf
jpn
10.4096/jssj.64.101
https://doi.org/10.4096/jssj.64.101
© 2007 The Sedimentological Society of Japan