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本文提出了一种方法,用于分析在一个地质界面上测得的重力剖面的一阶水平导数。它需要把二阶水平导数剖面(通过微分实测的一阶导数剖面得到的)转换到空间频率域,并用它的振幅和相位谱来表示。发现相位谱直接给出了界面倾角的数值,振幅谱的分析给出了界面顶部的深度值以及隐伏构造的密度差。
This paper presents a method for analyzing first-order horizontal derivatives of a gravity profile measured at a geological interface. It needs to convert the second-order horizontal derivative profile (derived from the first-order derivative profile of the differential measurement) into the spatial frequency domain and use its amplitude and phase spectrum to represent it. The phase spectrum was found to give the numerical value of the interface dip directly. The analysis of the amplitude spectrum gave the depth value at the top of the interface and the density difference of the buried structures.