NEOTECTONIC MOVEMENT IN THE EASTERN BOZHONG DEPRESSION
Author(s): TONG Siyou, CHEN Renjie, LIU Huaishan, ZHAO Tiehu, YIN Yanxin, Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Shenzhen Branch of CNOOC Ltd., Qingdao Institute of Marine Geology
Pages: 73-79
Year: 2015 Issue: 6
Journal: Marine Geology & Quaternary Geology
Keyword: neotectonism; high-resolution multi-channel seismic exploration; Quaternary; the Bozhong Depression;
Abstract: The eastern Bozhong Depression is one of the areas with most intense neotectonism in China.There are complex neotectonic structures and types and it is still the most important earthquake area in eastern China.The neotectonic characteristics in the deep part have been disclosed by petroleum exploration,but the features in the shallow part remain unknown due to limited shallow seismic surveys.Based on the 2000 km of latest high-resolution multi-channel seismic data,this paper has made a detailed study of the neotectonism in geometry,kinematics,earthquake activities,sedimentation and depocenter migration.According to the deep and regional tectonic backgrounds,it is deduced that the neotectonic movement of the region is a kind of extensional movement resulted from the strike-slip faulting superimposed on the deeplevel thermal subsidence.
Pages: 73-79
Year: 2015 Issue: 6
Journal: Marine Geology & Quaternary Geology
Keyword: neotectonism; high-resolution multi-channel seismic exploration; Quaternary; the Bozhong Depression;
Abstract: The eastern Bozhong Depression is one of the areas with most intense neotectonism in China.There are complex neotectonic structures and types and it is still the most important earthquake area in eastern China.The neotectonic characteristics in the deep part have been disclosed by petroleum exploration,but the features in the shallow part remain unknown due to limited shallow seismic surveys.Based on the 2000 km of latest high-resolution multi-channel seismic data,this paper has made a detailed study of the neotectonism in geometry,kinematics,earthquake activities,sedimentation and depocenter migration.According to the deep and regional tectonic backgrounds,it is deduced that the neotectonic movement of the region is a kind of extensional movement resulted from the strike-slip faulting superimposed on the deeplevel thermal subsidence.
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