宁夏大学学报（自然科学版）2023，Vol.44Issue(4)：369-372,4.
清水河盆地南段固原隆起区的地球物理特征
Geophysical Characteristics of Guyuan Uplift Zone in the Southern Part of Qingshuihe Basin
摘要
Abstract
Through the controlled-source audio geodetic electromagnetic profiling method and comprehensive analysis combined with the residual gravity anomaly map,it is found that there is an obvious medium-high resistance uplift in the deep part of the Guyuan uplift area,and at the same time there is a relative gravity high of 1 × 10-5m/s2 in the residual gravity anomaly of this section,which indicates that the deep strata show medium-high resistivity and high density characteristics relative to the overlying strata.Combining with the regional geological background and the statistical results of geophysical parameters,it is inferred that the deep strata may be Cretaceous,reflecting that the Guyuan uplift was formed in the Cretaceous sedimentary period,and the top plate of Cretaceous is buried at a depth of 1.8 km,and its uplift position is about 2.2 km west of the surface.关键词
清水河盆地/固原隆起/可控源音频大地电磁测深法Key words
Qingshuihe basin/Guyuan uplift/controlled-source audio electromagnetic sounding分类
天文与地球科学引用本文复制引用
杨勇,闫国翔,马立荣,杨文明,宋城..清水河盆地南段固原隆起区的地球物理特征[J].宁夏大学学报（自然科学版）,2023,44(4):369-372,4.基金项目
国家地质调查基金资助项目(DD20190018) （DD20190018）
