Three-dimensional constrained inversion of gravity data in the mining area is an important technique for deep metallogenic environment exploration. The key point of the gravity inversion is the introduction of prior information. The reference model is a simple and effective constraint method, which can significantly improve the inversion quality. This paper discusses the construction of reference model in practice. Geological map, physical property statistics and interface information serve as parts of the import to obtain reliable results which accord with geological understanding. A reference model constraint was constructed and three-dimensional inversion of gravity data was performed in the Zhangmajing ore district. The inversion results are consistent with the surface outcrop information and the formation information revealed by the boreholes. The unconstrained results are quite different from the actual geological condition. Therefore, it is of high practical value to construct the reference model constraint to handle the inversion work. It is worthful and applicable in improving the gravity data inversion results.
周俊杰, 陈聪, 喻翔, 高玲举, 陈涛. 矿区重力三维物性反演的参考模型构建方法及应用[J]. 物探与化探, 2020, 44(4): 878-885.
Jun-Jie ZHOU, Cong CHEN, Xiang YU, Ling-Ju GAO, Tao CHEN. Construction and application of reference model to three-dimensional property inversion of gravity data in the mining area. Geophysical and Geochemical Exploration, 2020, 44(4): 878-885.
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