Characteristics of Basin-Controlling Faults, Basin Type and Dynamic Mechanisms of the Xiangyin Sag in Northeastern Hunan Province

• 责任者：Bai Daoyuan (Hunan Institute of Geology Survey ; Changsha 410011 ; China) ; Liu Bo
• 刊名：Resources Survey & Environment
• 出版年：2010
• 卷期：31(3)
• 关键词：断裂 ; fractures ; 断陷盆地 ; fault-downwarping basins ; 湖南 ; Hunan Province
• 页码：p.157-168
• 图表：9 illus., 24 refs.
• 分类号：0300
• issnNo：ISSN1671-4814
• isbnNo：CN32-1640/N

The authors surveyed near-surface geological characters of north Xiangyin sag to the east of Cretaceous-Paleocene Dongting Basin.  Based on the studies of Xiangyin sag in this paper and regional geological features, the authors probe into the tectonic settings and dynamic mechanisms of the Xiangyin sag and bring forward ideas as follows: extensional tectonic setting controlling basin-forming was primarily caused by local especial deep structure background of mantle uplifting, and secondly by regional extensional tectonic setting in southeast China; NE-trending of the Xiangyin sag was primarily controlled by regional dextral NNE-strike-slipping stress field.