内蒙古石灰窑沟铁矿地质特征及找矿标志

Geological Characteristics and Prospecting Criteria of Limeyaogou Iron Mine in Inner Mongolia

石灰窑沟铁矿区位于赤峰市北西约80 km处,地处西拉木伦多金属成矿带的南侧,区域位于内蒙古地轴东段与内蒙海西褶皱带接触带,Ⅲ级构造单元为云雾山隆起的北东端和赤峰—铭山大断裂2条构造单元的分界线处,本矿床围岩蚀变具有分带性,是一个受断裂和褶皱复合控制的矽卡岩型矿床。为探讨该矿区的地质特征及找矿标志,通过近几年对本区地质勘查工作的总结分析,认为该矿床为矽卡岩型矿床,围绕构造发育部位,岩体与地层接触带及附近且与高精度磁测异常套合区是主要的找矿标志。

The limeyaogou iron ore area is about 80 km away from the northwest of Chifeng City,and is located in the south side of the Xilamulun polymetallic metallogenic belt.The area is located in the contact zone between the east part of Inner Mongolia earth axis and the West Inner Mongolia sea fold belt.The third level structural unit is the northeast end of Yunwushan uplift and the boundary of the two structural units of Chifeng Mingshan fracture.The wall rock alteration of the deposit is zonal,and it is a fault and Skarn type deposit controlled by fold complex.In order to explore the geological characteristics and ore prospecting signs of the mining area,the geological survey work in this area has been summarized and analyzed in recent years.The deposit is considered to be a skarn deposit.Around the structural development position,the main prospecting target is the contact zone between the rock mass and the stratum and the adjacent area and the high-precision magnetic anomaly matching area.