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