Author(s)

Shancong Yao^1,2, Mao Wang¹, Shuxin Duan², Shuang Chen³, Wusheng Liu², Delin Xu²

¹School of Geophysics and Information Technology, China University Geosciences (Beijing), Beijing, China.
²CNNC Key Laboratory of Uranium Resource Exploration and Evaluation Technology, Beijing Research Institute of Uranium Geology, Beijing, China.
³No. 208 Geological Party, CNNC, Baotou, Inner Mongolia, China.

AMT method with the economical and convenient superiority plays a key role in exploring the sandstone-type uranium deposits in China, which mainly meets to four problems such as the thickness of overlying strata, delineating the shape of the significant sand bodies, whether there are buried structures and knowing the basement relief. Exploring the sand body shape is the key one among such problems because sand body provides the room of uranium deposits and is the prerequisite for exploring uranium mineralization. Through an example of outlining the sandstone layer within the mudstone layers, the ability can be improved to recognize the electrical resistivity anomaly among the weak electrical property contrast by adjusting the inversion model’s scale. A route to deal with the problem was given by inverting different scale models followed by checking whether the anomalies of each inversion are reliable. Finally, the geo-electrical model was to be determined by comparing results of different scale model.

AMT, Inversion Model Scale, Recognizing the Electrical Resistivity Anomaly

Yao, S. , Wang, M. , Duan, S. , Chen, S. , Liu, W. and Xu, D. (2017) Exploring Sandstone Body in Weak Electrical Resistivity Contrast with AMT Data. International Journal of Geosciences, 8, 277-285. doi: 10.4236/ijg.2017.83012.