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本文依据联接塔里木盆地西南部和西昆仑褶皱带的两条大地电磁测深剖面解释结果,研究和分析了测线所经地区的岩石圈地电结构特征。指出塔里木盆地西南缘发育规模较大的逆掩推覆构造带,推覆体宽度约40km,由南向北的推覆距离达20km以上。并依据电性资料划分了构造单元,探讨了各单元的构造接触关系。最后通过对该区均衡重力异常特征、地震活动和岩石圈内部低阻层比面地表陆内变形的综合分析,研究和建立了塔里木西南部和西昆仑之间的陆内俯冲模式,提出该区广泛存在的推覆构造与地壳深部存在陆内俯冲作用有关的观点和认识。
Based on the interpretation results of two geomagnetic bathymetry profiles linking the southwestern Tarim Basin and the western Kunlun fold belt, the lithospheric and geoelectric structural features of the area under the survey line are studied and analyzed. It is pointed out that the overthrust nappe belt with large scale developed in the southwestern margin of Tarim Basin has a width of about 40km and a thrusting distance of 20km from south to north. Based on the electrical data, the tectonic units are divided and the tectonic contact relationship of each unit is discussed. Finally, the intracontinental subduction pattern between the southwestern Tarim and the western Kunlun has been studied through the comprehensive analysis of the characteristics of the anomalous gravity anomaly in the area, the seismic activity, and the inland deformation of the low resistivity layer in the lithosphere. The widespread existence of nappe structures is related to the existence of intracontinental subduction in the deep crust of the earth.