重力场Tilt-Depth方法及其高阶推广

发布时间：2018-05-30 00:26

  本文选题：重力勘探 + 边界分析　； 参考：《武汉大学学报(信息科学版)》2017年09期

【摘要】：Tilt-Depth以及其相关改进方法最初是基于磁异常基本公式推导,一直应用于磁法勘探领域。自2012年以来,不断有学者探讨重力场Tilt-Depth方法,但对重力场与磁场Tilt-Depth方法之间的关系研究较少,存在一些不同认识。梳理了重磁场之间Tilt-Depth方法的联系与区别,得出了Tilt-Depth方法在重力场中相比磁场高一阶导数的结论。验证了方法的有效性,通过对海南石碌矿区重力异常处理,提取了矿体的边界信息,突出了深部隐伏矿体产生的弱异常的边界范围,获取了矿体的位置及埋深参数,通过与已知地质剖面、反演剖面的对比,证实了重力场Tilt-Depth结论的正确性与有效性。
[Abstract]:Tilt-Depth and its related improvement methods are initially based on the derivation of basic magnetic anomaly formula and have been applied to the field of magnetic prospecting. Since 2012, there have been many scholars on the Tilt-Depth method of gravity field, but there are few studies on the relationship between the gravity field and the magnetic field Tilt-Depth method, and there are some different understandings. The Tilt between the heavy and magnetic fields has been combed. The relationship and difference between the -Depth method and the conclusion of the first derivative of the Tilt-Depth method in the gravity field are obtained. The validity of the method is verified. The boundary information of the ore body is extracted from the gravity anomaly treatment in the Hainan Siu mining area, and the boundary range of the weak anomaly produced by the deep concealed orebody is highlighted, and the position of the ore body is obtained. By comparing with the known geological section and inversion profile, the correctness and validity of the Tilt-Depth conclusion of gravity field are confirmed.
【作者单位】： 中国地质大学(武汉)地球物理与空间信息学院地球内部多尺度成像湖北省重点实验室;长江大学油气资源与勘探技术教育部重点实验室;
【基金】：国家高新技术发展计划(2014AA06A608) (长江大学)油气资源与勘探技术教育部重点实验室开放基金(K2015-21)~~
【分类号】：P631
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本文编号：1953106