"Step" is the main physical model for the interpretation of gravity gradient zone anomaly. The theoretical calculation has proved that the Bouguer gravity anomaly (Δg) directional derivative (Vxz) peak value indicates the ground projection position of the top edge of the step that forms the gravity gradient zone, but is less related to the angle of the step. Using the 3/4 extreme value position, the authors deduced another inversion formula and proved that this formula is better than the common formula which uses 1/4 extreme value position.
邵行来, 周耀明. 方向导数在重力梯度带异常解释中的应用[J]. 物探与化探, 2013, 37(6): 1023-1026.
SHAO Xing-lai, ZHOU Yao-ming. THE APPLICATION OF THE DIRECTIONAL DERIVATIVE TO THE INTERPRETATION OF GRAVITY GRADIENT ZONE ANOMALY. Geophysical and Geochemical Exploration, 2013, 37(6): 1023-1026.