地质通报2012,Vol.31Issue(11):1826-1837,12.
雪峰山西侧深部构造的特征——来自大地电磁测深(MT)的新证据
Deep structure characteristics on the western side of the Xuefeng Mountain: New evidence from megnetotelluric (MT) sounding
摘要
Abstract
To understand the deep structure characteristics on the western side of the Xuefeng Mountain and to promote the selection of petroleum exploration strategic areas, the authors comparatively analyzed the faults, folds and the surface and subsurface stratigraphic distribution in the study area by using megnetotelluric (MT) sounding technology in combination with the geological and physical properties in this area to perform qualitative analysis and quantitative calculation. The results show that the subsurface tectonic unit division is basically identical with the surface tectonic unit division on the western side of the Xuefeng Mountain area. It is inferred that the huge thickness of the low resistance layer at the depth of the Xuefeng Mountain uplift region shown on the MT profile is probably the shattered layer caused by the repeated compression process. An investigation of the western part of the MT profile shows that, in the area west of the Xiushan Mountain, the low resistance marker beds is distinct, the thickness of the Sinian-Cambrian strata is great, the tectonic deformation is comparatively weak, and the lateral extension is stable; therefore, this area is considered to be a favorable area for petroleum exploration. This understanding provides important basis for the selection of petroleum exploration strategic areas in the marine lower assemblage.关键词
雪峰山西侧/大地电磁(MT)测深/构造特征/油气勘探Key words
western side of the Xuefeng Mountain/ magetotelluric (MT) sounding/ structure characteristics/ petroleum exploration分类
天文与地球科学引用本文复制引用
汪启年,李涛,朱将波..雪峰山西侧深部构造的特征——来自大地电磁测深(MT)的新证据[J].地质通报,2012,31(11):1826-1837,12.基金项目
中国地质调查局地质调查项目《雪峰山西侧海相地质调查及综合研究》(编号:1212010782003) (编号:1212010782003)