甘肃省天水市麦积区石庄下铅锌银多金属矿地质特征及找矿前景分析

Geological characteristics and prospecting prospects of Shizhuangxia Pb Zn Ag polymetallic deposit in Maiji District,Tianshui City,Gansu Province

石庄下铅锌银多金属矿位于西秦岭北带李子园-柴家庄-吊坝子金及多金属成矿带的北西部,区内出露的中下元古界秦岭岩群、上泥盆统大草滩组是主要赋矿地层,该地层中侵入的岩株、岩脉,为铅锌银等元素的富集成矿提供了丰富的物质来源,区内次级断裂发育,改造地层及岩体结构,并提供成矿物质运移通道,具有寻找岩浆期后热液有关的构造角砾岩型矿产的条件。

The Shizhuang Lower Lead Zinc Silver Polymetallic Deposit is located in the northwestern part of the Liziyuan Chaijiazhuang Diaobazi Gold and Polymetallic Metallogenic Belt in the northern belt of the Western Qinling Mountains.The exposed Middle and Lower Proterozoic Qinling Rock Group and the Upper Devonian Dacaotan Formation are the main ore bearing strata in the area.The intrusive rock stocks and veins in this formation provide rich material sources for the enrichment and mineralization of elements such as lead,zinc,and silver.Secondary faults are developed in the area,transforming the strata and rock structure,It also provides a migration channel for ore-forming materials,and has the conditions to look for structural Breccia type minerals related to post magmatic hydrothermal.