关于西拉木伦河断裂东延走向的研究——来自于MT资料的证据

Research on Xilamulun fault east extension based on evidence of magnetotelluric sounding data

针对西拉木伦河断裂的东延问题,利用MT二维反演软件,对松南、辽北及下辽河地区多条MT剖面资料进行了二维反演及分析,对西拉木伦河断裂东延进行了追索,据多条MT剖面资料的反演结果和地质的综合分析,对于西拉木伦河断裂的东延问题提出了新的认识:即西拉木伦河断裂由西拉木伦河河套,经通辽、科左中旗及三县堡以东,延伸到长春附近。

Aiming at the east extension problem of Xilamulun fault, the authors used 2D magnetotelluric sounding （MT） data inversion software to analyze some correlative MT data for many sections in Songnan, Liaobei and Xialiaohe areas, and made tracks for Xilamulun fault. Based on comprehensive analysis of the inversion result and geologic data, some new points to the east extension of Xilamulun fault were presented, i.e. the Xilamulun fault extending from the bend of Silamulun River, along with Tongliao, Kezuozhongqi and the east of Sanxianpu to the neighborhood of Changchun.