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The Application of Balance Geological Section Technology in the Mid-South Section of the Western Margin of the Ordors Basin
详细信息   
摘要


     Guided by the theory of fault-related folding, using balance geological section technology and software of 2DMOVE, this paper accurately interprets, makes balances and direct modeling of the seismic profiles in the west margin of the Ordos Basin. Nine first-level faults and four first-level structure units in the west margin are redefined. The middle- south segment in the west margin is divided into five sections. The authors proposed structure models for different sections. In the models, the Majiatan section has thin-skinned structure and the interpretation of the Seismic lineH126489 is reasonable, balanced and restorable, which the shortest percentage of contraction is 27.3%. The shortest percentages of contraction vary in different sections. The maximum is in the Tianshuibu section. The Shibangou section and Shajingzhi section take the second place. The minimum percentage of contraction is found in the Pengyang section. Thus, the balance geological section technology is fit to interpret seismic sections in the west margin of the Ordos Basin.

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