Depth Estimation Using the Tilt Angle of Gravity Field due to the Semi-Infinite Vertical Cylindrical Source

Figure 4

(a) Gravity anomaly from a semi-infinite vertical cylinder located at depth of 10 m and position of 100 m. The model has radius of 30 m and density contrast 0.1 g/cm³. (b) Tilt angle of data in (a). (c) Depth estimates from TDD method. The correct depth value (20 m) is drawn as a horizontal green dotted line. The vertical pink line shows the horizontal location of the source center. (d) Solutions from TDD and Euler deconvolution (using a structural index of 1 and a window size of 7 points) methods represented by red + and blue × symbols, respectively.

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