Fig. 2From: Eigenvector of gravity gradient tensor for estimating fault dips considering fault typeModel of subsurface structure. A double-layer model consisting of a sedimentary layer and a basement is assumed here. D is the average depth of the stratum boundary, and h(x’) is the deviation of the boundary from the average. Here, the deviation is assumed to be very small, i.e., h(x’) << D Back to article page