重磁资料在鄂尔多斯盆地西南缘基底研究中的应用

宁媛丽, 周子阳, 孙栋华

The application of magnetic and gravity data on research the basement in the southwest of Ordos Basin

Yuan-Li NING, Zi-Yang ZHOU, Dong-Hua SUN

图5 重磁联合反演结果 a—反演剖面位置; b—A-A'剖面重磁联合反演结果; c—B-B'剖面重磁联合反演结果 1—白垩系-第四系;2—三叠系-侏罗系;3—石炭系-二叠系;4—寒武系-奥陶系;5—新太古界-新元古界;6—中基性岩体;7—推测逆断层及编号; 8—推测性质不明断层及编号;9—推测地层界线;10—实测剖面;11—拟合剖面;12—反演剖面及编号;13—居民点;14—研究区范围

Fig.5 The results of joint inversion of gravity and magnetic data a—the position of inversion profile; b— the results of joint inversion of gravity and magnetic data of A—A' profile; c— the results of joint inversion of gravity and magnetic data of B—B' profile 1—Cretaceous-Quaternary; 2—Triassic-Jurassic; 3—Carboniferous-Quaternary; 4—Cambrian-Ordovician; 5—Archean Erathem-Proterozoic group; 6—intermediate to basic rocks; 7—inference compressional fault and number; 8—inference fault and number; 9—inference boundary stratotype; 10—measured profile; 11—fit profile; 12—inversion section and number; 13—residential area; 14—study area