陕西省宁强县火峰垭金矿地质及岩石地球化学特征

火峰垭金矿位于苍社向斜之南东翼地段，托河—林家沟韧性剪切带之（金）铜成矿带东段，是区内最为重要的一个金矿点之一。通过对该金矿床的地质特征、微量元素、稀土元素、流体包裹体和硫同位素特征的分析，初步认为该矿床主要赋金层位为Pt2-3bk22-2b，划分为林家崖、太阳坡、瞎子湾三个矿段，共圈出金矿体13个，受托河—林家沟逆冲型韧性剪切带所控制，石英脉型是火峰垭金矿的重要金矿化类型，成矿流体为Eu正异常的高温低盐度流体，且具有多阶段性，成矿物质来源可能为花岗斑岩与地层的混合来源。

Geology and Geochemistry of Huofengya Gold Deposit in Ningqiang County, Shaanxi

Huofengya gold deposit is located in the south wing area of Cangshe syncline, Eastern copper metallogenic of Tuohe - Linjiagou ductile shear belt (gold) , which is one of the most important gold mine in the study area. Through the analysis of geological characteristics of gold deposit, the trace elements, rare earth elements, fluid inclusions and sulfur isotopes, it is considered that the gold deposit is mainly hosted in Pt2-3bk22-2b layer, and divide into Linjiaya, Taiyangpo, Xiaziwan three ore section, a total of 13 circle the gold orebody, which control by the Tuohe - Linjiagou thrust ductile shear belt. The quartz vein type is an important type of gold mineralization huofengya gold. The ore-forming fluid is high temperature and low salinity fluid with positive Eu anomaly, and has many stages, so the source of ore-forming material may bemixed granite porphyry and strata.