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地球物理方法(重力、地震、电法等)是地质调查及填图工作中的重要手段。相对于二维地质填图,三维地质填图/建模更迫切地需要借助地球物理数据来获取大量与深度有关的地质信息,因此本文提出了一种基于地球物理数据的地质体三维填图方法。首先,将不同地球物理手段所获取到的数据格网进行可视化建模综合;然后,在有限的地质采样约束下进行解释并直接映射为地质三维模型。实践证明,该方法自动化程度较高,并能在地质调查工作中针对性地解决一些地球物理资料较丰富而地质采样相对匮乏的三维地质填图问题。此外,它也可应用于传统三维地质填图工作中,以极大地提高地球物理数据处理效率。
Geophysical methods (gravity, seismic, electrical, etc.) are important tools in geological surveys and mapping. Compared with 2D geological mapping, 3D geological mapping / modeling more urgently needs geophysical data to obtain a large amount of depth-related geological information. Therefore, this paper presents a geophysical 3D mapping method based on geophysical data . First, the data grids obtained by different geophysical methods are visualized and synthesized. Then, the data grids are interpreted under the limited geological sampling and directly mapped into the geological three-dimensional model. Practice has proved that this method has a high degree of automation and can solve some geological mapping problems that are rich in geophysical data and relatively scarce in geological sampling in geological survey work. In addition, it can also be applied to traditional 3D geological mapping to greatly improve the efficiency of geophysical data processing.