Application of high precision magnetic survey in the exploration of Kuquanshan iron mining area in Ejin Banner of Inner Mongolia
LI Huaiyuan1, YUAN Jie2, WU Wenxian1, HU Junfeng1, JIANG Shoujin1, CHEN Qianglin1
1. Civil-Military Integration Center of China Geological Survey, Sichuan Chengdu 610036,China; 2. Inner Mongolia Jincai Industry Group Co., Ltd., Inner Mongolia Hohhot 010010, China
Abstract：In order to efficiently search for deep hidden magnetite bodies in Kuquanshan area of Ejinagi Banner in Inner Mongolia, and evaluate the resource potential of iron polymetallic ores in this area, the authors carried out 1∶10,000 ground high-precision magnetic survey on the basis of the pre-survey. Five fractures were identified, and 2 magnetic anomalies (C1 and C2) were circled. And 2 magnetite bodies were exposed at C2 magnetic anomaly after the validation of the trench exploratory project, indicating good results in prospecting. The survey results show that the range of iron ore bodies can be better predicted by ΔT magnetic anomaly polarization operation, and the regional tectonic framework can be effectively identified by ΔT horizontal derivative operation. The contact zone+fracture+high magnetic anomaly area was preliminary established as favorable target area for iron ore mineralization in the region. The magnetite bodies after tectonic modification would result in strong negative magnetic anomalies on the surface, and this abnormal magnetization phenomenon should be paid attention to during magnetite exploration. This study could provide some experience for the exploration of skarn-type iron ore in Beishan area.
李怀远, 袁杰, 吴文贤, 胡俊峰, 蒋首进, 陈强林. 高精度磁测在内蒙古额济纳旗苦泉山铁矿区勘查中的应用[J]. 中国地质调查, 2024, 11(2): 37-42.
LI Huaiyuan, YUAN Jie, WU Wenxian, HU Junfeng, JIANG Shoujin, CHEN Qianglin. Application of high precision magnetic survey in the exploration of Kuquanshan iron mining area in Ejin Banner of Inner Mongolia. , 2024, 11(2): 37-42.
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2024, Vol. 11 
