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大庙斜长岩杂岩体中赋存有丰富的钒钛磁铁矿矿体。本研究采用亚米级差分GPS准确确定出地表已知矿体出露位置;利用氦光泵磁力仪(HC-95a)在平面上确定出3条规模较大高磁异常带,并确定异常带的延伸方向;借助EH4电磁成像系统解析主要高磁异常带(矿化带)向地下深部延伸情况。三种物探方法在研究区的联合应用,清晰地展现出研究区成矿潜力,达到了综合找矿、评价目的。本次工作说明,三种物探方法地结合,可以作为快速寻找、评价钒钛磁铁矿矿体的推广性方法。
The Dagimian plagioclase complex contains abundant vanadium-titanium magnetite ore bodies. In this study, sub-meter differential GPS was used to accurately determine the exposed locations of known ore bodies on the surface. Three large high-magnetic anomaly bands were identified in the plane by using Helium Optical Pump Magnetometer (HC-95a) Of the extension direction; with EH4 electromagnetic imaging system analysis of the main high magnetic anomalous zone (mineralized zone) to the deep underground extension. The combined application of the three geophysical methods in the study area clearly shows the potential for metallogenesis in the study area and achieves the purpose of comprehensive prospecting and evaluation. This work shows that the combination of three geophysical methods can be used as a general method to quickly find and evaluate vanadium-titanium magnetite ore bodies.