Citation: | WANG Zhong-lian, WANG Yong-guo, WANG Zhi-mao, LU Xue-bin. JOINT PROSPECTING OF GROUND MAGNETIC SURVEY DATA INVERSION AND BOREHOLE MAGNETIC SURVEY: A Case Study of Galinge Fe-polymetallic deposit[J]. Geology and Resources, 2020, 29(1): 61-67. |
The Quaternary overburden in Galinge iron polymetallic orefield in Qinghai Province is nearly 200 m. The deposit is dominated by iron ore, associated with polymetallic ores such as copper, cobalt, lead and zinc. Magnetic prospecting is the most direct and effective method. Based on the analysis of ground magnetic survey data, the magnetic bodies are found in deep part with the 2.5-D inversion modeling. The processing and analysis of the borehole three-component magnetic survey data provide a basis for borehole layout and a guide for drilling construction. Good geological results have been achieved in deep prospecting.
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Magnetic anomaly contour map of Galinge No. Ⅱ ore block
Magnetic anomaly by reduction-to-the-pole contour map of Galinge No. Ⅱ ore block
2.5-D forward calculation along exploratory line No. 24
Residual anomaly along exploratory line No. 24
2.5-D inversion result along exploratory line No. 24
Three-component magnetic survey curves of borehole ZK2405
Geological profile along exploratory line No. 24