Abstract:Authors describe the procedure of estimating the underneath depth of a magnetic body by using both magnetic field moment spectrum method and improved Parker-0ldenburg method. The depth of Curie isothermic surface(underneath depth of magnetic body) under the Tarim basin is obtained by taking the result of moment spectrum method as a restrictive model of Parker-Oldenburg method. As a result,deep faults reflected by gradient of Curie depth contour divide the deep part of the basin into two areas where Curie surface uplifts and other three areas under which Curie surface subsides. Relatively to the tectonics in above overburden,there exist homomorphous and anti-homomorphous tectonic structures in the uplifted areas and subsidence areas respectively.
李庆春, 许炳如. 塔里木盆地居里等温面特征及其地质意义[J]. 石油地球物理勘探, 1999, 34(5): 590-594.
Li Qingchun, Xu Bingru. The characteristic and geological meaning of Curie isothermic surface under the Tarim basin. OGP, 1999, 34(5): 590-594.