【摘要】 以断层相关褶皱理论为指导,利用平衡地质剖面技术与2DMOVE软件对鄂尔多斯盆地西缘中南段地震剖面进行了精细解释、平衡与正演。重新厘定西缘及周缘地区一级断裂9条,一级构造单元4个,并将西缘中南段划分为5个段。建立了不同段构造模式,其中马家滩地区为典型的薄皮构造,地震测线H126489的解释方案是合理的、平衡的和可恢复的,其最短收缩率为27.3%。不同区段最短收缩量不同,甜水堡段构造变形强度最大,马家滩段、石板沟段和沙井子段变形强度次之,彭阳段构造变形强度较小。可见,平衡地质剖面技术在西缘中南段地震剖面解释中是一种行之有效的方法。更多还原

【Abstract】 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 middlesouth 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 line(H126489) 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.更多还原