The Reverse Structural Styles in the Shiwu Rift Depression, Songliao Basin, and Their Oil and Gas Exploration Significance
ZHANG Yuming 1) ZHANG Qinglin 1) WANG Mingjun 2) YANG Muzhuang 3)1) China University of Geosciences, Wuhan,Hubei, 430074; 2) Institute of Mineral Resources, CAGS, Beijing, 100037; 3) Guangzhou Institute of Geography, GAS, Guangzhou, Guangdong, 510405
Four reverse structural zones in Shiwu rift depression were determined and their structural styles were described on the basis of interpreting typical profiles by using 3-D high resolution seismic data. The Gujiazi-Houwujiahu reverse structural zone is characterized by tyrannous faults, whereas the Xiaowujiazi-Sijiazi reverse structural zone shows a box-like anticline in shallow place and tyrannous reverse faults in depth. The Qinjiatun reverse structural zone is a tine ridge anticline developed above the early half-graben. The Pijia-Maobe-Zhangjiatun reverse structural zone assumes a small anticline or syncline. As important hydrocarbon traps, these reverse structural zones are usually distributed near the deep source depression and have favorable petroleum geological conditions.
【CateGory Index】： P618.13