On 'Gravity anomalies of 2D bodies with variable density contrast' (Jianzhong Zhang, Benshan Zhong, Xixiang Zhou, and Yun Dai, 2001, GEOPHYSICS, 66, 809-813). Reply to the Discussion

摘要

In “Gravity anomalies of 2D bodies with variable density contrast,”Zhang et al. derive a set of equations 9 and 10 in their paperfor a gravity anomaly at the origin of the coordinate system x,z fora polygon mass body when the density contrast is a polynomial functionof x and z. For convenience of discussion, I reproduce and renumbertheir equations 9 and 10 as, respectively