Geological Characteristics of Devonian Sandstonetype Copper Deposit in Kusilafu Area,Southwestern Tarim Basin:Evidence from Saigeziganleke Copper deposit
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摘要: 塔里木盆地西南缘库斯拉甫一带砂岩型铜矿发育于晚古生代早期大陆边缘裂陷盆地中,含矿岩系为一套滨海-滨浅海相碎屑岩+碳酸盐岩建造,矿体主要赋存于泥盆系“浅-紫”交互带的浅色砂岩中,受一定层位制约,具有沉积矿床的一些特征。含矿岩系的微量元素和稀土元素特征显示出矿区西侧前寒武纪结晶基底可能为铜矿的初始富集提供了物质来源。沿构造带(线)矿体明显发育碳酸盐化和硅化等围岩蚀变,矿区附近的早石炭世中基性岩浆喷发活动可能对矿源层具有改造和富集作用,成因上总体表现为沉积改造型矿床的特征。在相似层位中普遍发育铜矿化,表明这一地区具有形成中-大型砂岩型铜矿的资源潜力。Abstract: In Kusilafu area, southwestern Tarim Basin, the sandstone-type copper deposit was developed in the rift basin of late Paleozoic's early period continental margin.Ore-bearing rocks are coastal-shallow coastal clastic + carbonate constructions.Ore body occurs in the light-colored clastic rocks of Devonian light-purple interlayer, which was constrained by certain layer, with the geological characteristics of sedimentary deposit.The trace and rare earth elements of ore-bearing rocks show that, the Precambrian crystalline basement in the west side of this deposit may provide some material source for the initial concentration of this copper deposit.The ore body was occurred wall rock alterations (such as carbonization and siliconization) along the tectonic zone (line).And the source layer of this deposit might be transformed and enriched by the Early Carboniferous intermediate-basic volcanic magmatic activities, thus this deposit performs the characteristics of sedimentation-hydrothermal reworked deposit.And the copper mineralization was developed in the similar layer, showing a potential of forming middle-large sandstone-type copper deposit in this region.
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胡煜昭,吴鹏,冉崇英.论滇中砂岩铜矿浅、紫交互带赋矿及其金属硫化物分带之成因与成矿作用演化[J].地质论评, 2013, 31(6):211-224. HU Yuzhao, WU Peng, RAN Chongying.A Discussion on the Genesis of Sandstone-hosted Copper Deposits Occurring in the Contact Zone between Purple and Gray Sandstone, Metallic Sulphide Zoning and the Evolution of Metallization in Central Yunnan[J].Geological Review, 2013, 31(6):211-224.
黄建国, 崔春龙, 李文杰, 等.新疆西昆仑库科西鲁克多金属矿集区地质特征[J].矿床地质, 2009, 28(2):218-223. HUANG Jianguo, CUI Chunlong, LI Wenjie, et al.Geological characteristics of Kukexiluke Geological characteristics of Kukexiluke polymetallic ore concentration area in West Kunlun, Xinjiang[J].Mineral Deposits, 2009, 28(2):218-223.
孙海田, 李纯杰, 吴海, 等.西昆仑金属成矿省概论[M].北京:地质出版社, 2003. SUN Haitian, LI Chunjie, WU Hai, et al.Generality of West Kunlun Metallogenetic Province[M].Beijing:Geological Publishing House, 2003.
孙海田, 李纯杰, 李锦平, 等.新疆昆仑式火山岩型块状硫化物铜矿床及成矿地质环境[J].矿床地质, 2004, 23(1):82-92. SUN Haitian, LI Chunjie, LI Jinping, et al.Kunlun Type Volcanic-hosted Massive Copper Sulfide Deposits in Xinjiang and Their Ore-forming Tectonic Environments[J].Mineral Deposits, 2004, 23(1):82-92.
印建平, 李明, 李丰收, 等.西昆仑晚古生代铜铅锌矿含矿建造及成矿机制[J].矿床地质, 2002, 21(增刊):527-531. YIN Jianping, LI Ming, LI Fengshou, et al.Features of Mineral-bearing Formations and Metallogenic Mechanism of Upper Palaeozoic Copper-lead-zinc Deposits in western Kunlun[J].Mineral Deposits, 2002, 21(Suppl.):527-531.
赵祖应, 关剑宇, 李先军, 等.土根曼苏砂岩铜矿地质特征及找矿前景[J].地质找矿论丛, 2002, 17(2):103-107. ZHAO Zuying, GAUN Jianyu, LI Xianjun, et al.Geological characteristics of Tugenmansu sandstone Copper ore deposit and the potentiality for further exploration[J].Conributions to Geology & Mineral Resources Research, 2002, 17(2):103-107.
祝新友, 汪东波, 王书来.新疆西昆仑地区大型铜矿成矿条件分析[J].地质与勘探, 2000, 36(5):42-46. ZHU Xinyou, WANG Dongbo, WANG Shulai.Analysis on the ore-exploring future of large-scale copper deposite, west Kunlun, Xinjiang[J].Geology & Prospecting, 2000, 36(5):42-46.
BOYNTON W V.Cosmochemistry of the rare earth elements:Meteorite studies, In:Henderson P, ed, Rare Earth Element Geochemistry:Developments in Geochemistry 2[M].Amsterdam:Elsevier, 1984:63-114.
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