甘肃礼县野韭梁金矿地质特征与找矿标志

Geological characteristics and prospecting signs of Yejiuliang Gold deposit in Lixian County, Gansu Province

野韭梁金矿位于中秦岭陆缘盆地Ⅲ级构造单元南北亚带分界线上,地处临潭~徽县Pb-Zn-Cu(Fe)-Au-Hg-Sb-Ag-Mo-W-SnⅣ成矿亚带。本文从区域成矿地质背景、矿区地质特征两个方面进行讨论,重点阐述矿区地层、构造、岩浆岩、蚀变特征、地球化学特征、矿(化)体等,初步探讨了矿床类型,认为属中低温热液型金矿,并归纳总结其找矿标志。

Yejiuliang Gold deposit is located on the boundary between the North and south subzones of the Grade III tectonic unit in the continental margin basin of central Qinling Mountains,and is located in Lintan-Huixian Pb-Zn-Cu(Fe)-Au-Hg-Sb-Ag-Mo-W-SnⅣmetallogenic subzone.This article discusses the regional metallogenic geological background and the geological characteristics of the mining area,focusing on the formation,structure,magmatic rocks,alteration characteristics,geochemical characteristics,mineralized body of the mining area.The type of deposit is preliminarily discussed.Low-and medium-temperature hydrothermal gold deposits,and summarize their ore prospecting signs.