旬阳地区夹沟铜矿地质特征及找矿方向  

GEOLOGY AND POTENTIAL ORE-PROSPECTING OF THE JIAGOU COPPER MINE IN THE XUNYANG AREA

作　　者：王兴国 侯满堂 

机构地区：[1]陕西省地矿局地质矿产勘查院,西安710054 [2]陕西省地质调查院,西安710054

出　　处：《陕西地质》2008年第2期33-43,共11页Geology of Shaanxi

基　　金："十一五"国家科技支撑计划项目:中西部大型矿产基地综合勘查技术与示范-西秦岭成矿地质背景与铅锌;银;铜;金资源评价技术研究(2006BAB01A11)资助

摘　　要：旬阳夹沟铜矿位于南秦岭—大别构造带中部,镇(安)旬(阳)古生代沉积盆地的南缘。矿体长度为650～750m,在倾向上延伸300～400m;矿体平均厚度2.22～2.39m,平均铜品位1.24%～1.47%。矿床规模为小型。矿体呈北西、南东向赋存于下志留统梅子垭组上岩性段的绢云母千枚岩中。矿体呈似层状相互平行顺层产出。硅化、碳酸盐化与铜矿关系最为密切。铜矿化受地层和构造的双重控制,初步认为矿床类型属受变质型铜矿。The Jiagou copper deposit of Xunyang county is located in the central part of the; south Qinling-Dabieshan orogenic zone, the south margin of the Paleozoic sedimentary basin in Zhen＇ an and Xunyang area. The deposit has a length ranging between 650 and 750 meters, extending along the dip direction between 300 and 400 meters, in which ore bodies have an average thickness ranging between 2.22 - 2.39 meter with an average grade of copper 1.24%-1.47%. The size of the deposit is small, ＇in which the ore bodies occur in the sericite phyllite at the upper portion of the Lower Silurian Meiziya Formation at northwest and southeast trend. The ore bodies are present in appearance of stratoid beds arranged in parallel along beddings. Copper mineralization is associated dominantly to silicification and earbonation, which is also controlled by stratigraphy and structures. The type of deposit is thought to be a metamorphosed copper deposit.

关 键 词：铜矿 地质特征 找矿方向 旬阳 

分 类 号：P618.410.8[天文地球—矿床学]