综合物探方法在甘肃省肃北县四道梁南钼矿勘查中的应用

Application of Comprehensive Geophysical Methods in the Exploration of Sidaoliangnan Molybdenum Mine in Subei County,Gansu Province

四道梁南钼矿属于斑岩型钼矿床,其矿体的产出主要与北西向的断裂关系密切,钼矿化主要赋存于二长花岗岩与英安岩内、外接触带的破碎裂隙及石英脉中。通过地面高精度磁测圈定岩体分布范围及断裂破碎带位置,结合激电中梯扫面圈定断裂破碎带中金属硫化物富集地段,利用激电测深了解深部极化体的产状、形态与空间分布特征。经钻探查证,成功揭露到隐伏钼矿体,为寻找同类型钼矿提供了指导和借鉴意义。

The Sidaoliang South Molybdenum Deposit belongs to the porphyry type molybdenum deposit,and its ore body is mainly related to the northwest trending faults.Molybdenum mineralization mainly occurs in the fractured fractures and quartz veins in the inner and outer contact zones of monzogranite and dacite.By using high-precision magnetic surveys on the ground to delineate the distribution range of rock masses and the location of fracture zones,combined with the scanning surface of induced polarization to delineate the enriched areas of metal sulfides in the fracture zones,and using induced polarization sounding to understand the occurrence,morphology and spatial distribution characteristics of deep polarized bodies.After drilling and verification,hidden molybdenum ore bodies were successfully exposed,providing guidance and reference significance for searching for similar types of molybdenum deposits.