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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
AAPG Bulletin, V.
DOI: 10.1306/08161817119
Transpressional salt tectonic system in western Qaidam Basin, Western China
Qing Bian,1 Daowei Zhang,2 Xiangjiang Yu,3 Xiang Cheng,4 Wei Du,5 Runchao Liu,6 Zhendong Wang,7 and Zhaojie Guo8
1School of Earth and Space Sciences, Peking University, Beijing, China; [email protected]
2Qinghai Oilfield Company, PetroChina, Dunhuang, Gansu Province, China; [email protected]
3Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, Los Angeles, California; [email protected]
4School of Earth and Space Sciences, Peking University, Beijing, China; [email protected]
5School of Earth and Space Sciences, Peking University, Beijing, China; [email protected]
6School of Earth and Space Sciences, Peking University, Beijing, China; [email protected]
7School of Earth and Space Sciences, Peking University, Beijing, China; [email protected]
8School of Earth and Space Sciences, Peking University, Beijing, China; [email protected]
ABSTRACT
In this paper, high-resolution three-dimensional seismic data are used to interpret a transpressional salt tectonic structure in the Yingxiongling area, Qaidam Basin, China. The geometries of the salt structure and the Shizigou fault system that intersects it are precisely depicted. The Shizigou fault system is composed of suprasalt and subsalt components. The suprasalt component is a Y-shaped reverse fault, and the subsalt component is a complex flower structure. In previous studies, suprasalt and subsalt components were interpreted as two independent fault systems. This paper proposes instead that the suprasalt and subsalt faults are kinematically related and decoupled across the salt layer.
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