Stratigraphic Erosion Recovery of the 2nd Episode of Himalayan Movement in Jiyang Depression
详细信息
- 责任者：Liu Shilin (China University of Geosciences ; Beijing 100083 ; China) ; Lin Ge
- 刊名：Xinjiang Petroleum Geology
- 出版年：2010
- 卷期：31(4)
- 关键词：地层剥蚀 ; stratigraphic erosion ; 剥蚀厚度 ; denuded thickness ; 济阳坳陷 ; Jiyang Depression
- 页码：p.358-360
- 图表：4 illus., 1 table, 9 refs.
- 分类号：0803
- issnNo：ISSN1001-3873
- isbnNo：CN65-1107/TE
摘要
The eroded strata recovery technologies such as sonic logging, fission track and strata correlation are used to recover the erosion thickness of the 2nd episode of Himalayan movement in Jiyang Depression of Bohai Bay Basin, and the result reveals that the denudation thickness becomes smaller from uplifts to slopes and to subsidence centers of sags. The erosion phenomena are more serious in Dongying sag and Huimin sag of southern Jiyang Depression than in Chezhen sag and Zhanhua sag of northern Jiyang Depression. The horizontal differences of denudation thickness suggest that the structural features at the Late Paleogene were characterized by the swell sag alternating and the high in the southwest and low in the northeast within Jiyang Depression.