中南工业大学学报(英文版)
中南工業大學學報(英文版)
중남공업대학학보(영문판)
JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY(ENGLISH EDITION)
2004年
1期
80-88
,共9页
郭建华%王明艳%朱美衡%刘学锋%张或丹%刘辰生
郭建華%王明豔%硃美衡%劉學鋒%張或丹%劉辰生
곽건화%왕명염%주미형%류학봉%장혹단%류신생
Sangzhi-Shimen synclinorium%tectonic property%structure decollement surface%deformation mechanism
The Sangzhi-Shimen synclinorium, which is in the western margin region of the Hunan-Hubei Province and as the southeast part of the middle Yangtze platform, is a second-level tectonics unit in the south of this region.Along the profile, it can be divided into 5 third-level structure belts. By the comprehensive interpretation of seismic data and magnetotelluric (MT) sounding data, it is found that the surface structure is not in accordance with that of the underground, and this un-coordination can be conducted by many decollement surfaces between the layers.There are three periods of deformation in its geo-history in this region: before the early Yanshan stage, during the early Yanshan stage and after the early Yanshan stage, while the main deformation period is during the early Yanshan stage. And the mechanism of deformation is the thrust faults in basement, which are controlled by many decollements, in addition to the decollement of the cap-rock.
