Estimation of depth and shape factor from potential-field data over sources of simple geometry
Estimation of depth and shape factor from potential-field data over sources of simple geometry
复制标题
根据简单几何源的势场数据估计深度和形状因子
DOI：
10.1190/1.1817358
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
K. Ushijima
中科院分区：
文献类型：
--
作者：
A. Salem;D. Ravat;M. Mushayandebvu;K. Ushijima
总结 我们提出了一种解释势场异常数据的新方法。推导出涉及异常及其水平梯度的线性方程，以提供埋藏源的深度和性质。所提出的方法类似于欧拉技术；然而，它使用形状因子 (q) 而不是结构指数 (η) 来表征埋藏源。该方法通过理论模拟进行测试，其中不同的重力和磁力模型放置在相对于观测高度的不同深度。在所有情况下，该方法都充分估计了源的位置和大致形状。现场示例的结果将在会议上讨论。
Summary We present a new method for interpretation of potentialfield anomaly data. A linear equation, involving the anomaly and its horizontal gradient, is derived to provide both the depth and nature of the buried sources. The proposed method is similar to the Euler technique; however, it uses a shape factor (q) instead of a structural index (η) to characterize the buried sources. The method is tested using theoretical simulations with different gravity and magnetic models placed at different depths with respect to the observation height. In all cases, the method adequately estimated the locations and the approximate shapes of the sources. Results from field examples will be discussed at the meeting.