A Novel Scheme for Stripping the Gravity Effects Due to the Shallow Coverage Layer

With the gradual deepening of mineral exploration, the detection of concealed minerals in the coverage area has become a notable research subject. However, how to strip the geophysical effects due to the shallow coverage layer effectively plays a major role in the success or failure of the application of various geophysical methods. To solve this problem for the application of gravity methods, this letter presents a novel scheme for stripping the gravity effects due to the shallow coverage layer. The proposed scheme introduces geological information of the coverage layer to reduce the uncertainty of the separation and automatically selects the frequency bands to decrease the subjectivity. The effectiveness of the proposed scheme is evaluated by both synthetic and real data. The obtained results demonstrate that the proposed scheme yields better results compared with the conventional preferential filtering method.