不同地质模型高精度磁测ΔT异常特征研究
Research on ΔT Characteristic Anomaly of Different Geologic Model in High-Precision Magnetic Survey
-
摘要: 地面高精度磁测为矿产资源评价、区域地质调查以及成矿地质构造研究等工作提供了丰富的物理场信息,在战略性矿产远景调查中发挥了很大的作用。解释认识了ΔT异常的性质,构建了地层、断层、向斜及背斜等不同模型的磁性体,分析研究了ΔT异常特征及磁性体对应关系,为复杂地质体的推断解释提供了理论依据,可以更好的指导磁测资料的正确解释。Abstract: High-precision ground magnetic survey plays a significant role in prospective investigations of minerals, providing abundant physical field information for the work of mineral resources assessment,regional geological survey and metallogenic geological structure research. This paper first explained the nature of ΔT anomaly, and then built different models for magnetic materials such as stratum, fault, anticline and syncline. Finally, the relationship between the ΔT anomalies and magnetic substance was discussed, which laid a theoretical basis for inference and interpretation of complex geological bodies, and could better guide the correct interpretation of the magnetic data.
-
Key words:
- high-precision magnetic survey /
- ΔT anormaly features /
- geologic model
-
-
长春地质学院磁法教研室.磁法勘探[M].北京:地质出版社,1979.
The Magnetic Law Department of the Changchun College of Geology.Magnetic exploration[M].Geological Publishing House,Beijing,1979.
杨生,郭刚.高精度磁测磁异常的计算与理解[J].矿产勘查,2011,2(6):780-783.
Yang Sheng,Guo Gang.Calculation and understanding of High-precision ground magnetic anomaly[J].Mineral exploration,2011,2(6):780-783.
李焓,邱之云,王万银.复杂形体重、磁异常正演问题综述[J].物探与化探,2008,32(1):37-42.
Li Han,Qiu Zhiyun,Wang Wangyin.A review of the forward calculation of gravity and magnetic anomalies caused by irregular models[J].Geophysical and Geochemical Exploration,2008,32(1):37-42. 管志宁.地磁场与磁力勘探[M].北京:地质出版社,2005.
Guan Zhining.Geomagnetic field and magnetic exploration[M].Geological Publishing House,Beijing,2005.
郭志宏,管志宁,熊盛青,等.长方体ΔT场及其梯度场无解析奇点理论表达式[J].地球物理学报,2004,42(6):714-719.
Guo Zhihong,Guan Zhining,Xiong Shengqing,et al.The cuboid ΔT and its gradient field the analytic singularity theory expression[J].Chinese Journal Geophysics,2004,42(6):714-719.
韦志洪.关于利用ΔT异常圈定磁性体边界及断层的一些问题[J].矿产地质研究院学报,1984,(2):63-74.
Wei Zhi-hong.Some problems about the use of ΔT anomaly and magnetic boundary fault[J].Research Institute of Geology for Mineral Resources,1984(2):63-74.
张文权,张爱奎,孟军海,等.高精度磁测反演技术在沙丘地区找矿中的应用[J].西北地质,2012,45(1):277-282.
Zhang Wenquan,Zhang Aikui,Meng Junhai,et al.Application inversion technology into dune with high-precision magnetic survey[J].Research Institute of Geology for Mineral Resources[J].Northwestern Geology,2012,45(1):277-282.
冯旭辉,李百顺,任金礼,等.磁测资料预处理中梯度改正问题探讨[J].西北地质,2010,43(2):150-154.
Feng Xuhui, Li Baishun, Ren Jinli,et al. Probe into the Gradient Correction in Preprocessing of Magnetic Data[J].Northwestern Geology, 2010,43(2):150-154.
-
计量
- 文章访问数: 3311
- PDF下载数: 3300
- 施引文献: 0
下载: