ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

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    新疆若羌县维宝铅锌矿床地质特征及矿床成因浅析

    Brief Analysis for Geological Features and Ore Deposit Origin of Weibao Lead-Zinc Deposit in Ruoqiang County,Xinjiang

    • 摘要: 维宝矿区属塔里木-华北板块柴达木微板块之祁漫塔格古生代复合沟弧带,成矿区带属于秦祁昆成矿域-昆仑成矿省-东昆仑Fe-Pb-Zn-Cu-Co-Au-W-Sn-石棉-盐类成矿带-祁漫塔格W-Sn-Pb-Zn-Fe-Cu-多金属矿带。容矿地层为蓟县系狼牙山组(Jxl),含矿岩性为条带状绿帘石、透辉石矽卡岩、少量为矽卡岩化大理岩。矿体主要受地层控制,形态多呈层状、透镜状和脉状。近矿围岩蚀变主要有矽卡岩化、绿泥石化、大理岩化和纤闪石化等。矿石矿物以方铅矿、闪锌矿、黄铜、黄铁矿为主,其次为褐铁矿、孔雀石、铜蓝等。矿石主要为半自形—他形粒状变晶结构,浸染状构造为主,局部见块状构造。矿床成因类型为沉积-岩浆气液叠加层控矿床。

       

      Abstract: The Weibao mining area,located at the Qimantage Paleozoic Era compound trench-arc belt in the Qaidam micro tectonic plate of Tarimu-North China tectonic plate,belongs to the east Kunlun Mount ains Fe-Pb-Zn-Cu-Co-Au-W-Sn-asbest os-salts mineralization belt-Qimantage W-Sn-Pb-Zn-Fe-Cu multi-metalliferous ore belt,the Qin-Qi-Kun mountains mineralization territory-Kunlun mountains mineralization province.The mineral estate level is attached to Langy a group (Jxl),Jixian system and ore rock mainly is the stripped epidote,diopside skarns,a few the skarnized marble.Ore bodies mainly are control led by stratigraphy and shaped often into stratiform,lens and veins.The wall rock alter ation of near-or e has mainly been skar nized,chlorit ization,marmarosis,filamented and so on.Ore minerals are galena,sphalerite,brass,yellow iron ore primarily,next,limonite,green copper ore,coppermica and so on.The ore is mainly with halfidiomo rphic-xenom orphic-granular metacryst texture and contaminated structure,partially with block structure.Genetic type of the ore deposit is classified int othe deposition-magmatic gas fluid superimposition and stratabouned.

       

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