青海省绿梁山铜矿床地质特征研究
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摘要
青海省绿梁山铜矿床位于南祁连地块与柴达木地块拼接部位北缘,是我国西部重要的多金属矿床之一。通过对矿床的地质特征进行详细研究和系统总结认为:该矿床矿体主要赋存于滩间山群变质火山岩中,其围岩蚀变有硅化、黄铁矿化、黄铜矿化、磁铁矿化、绿帘石化及绿泥石化等;矿石类型主要为含石英细脉、网脉蚀变岩型铜矿石;矿床类型属破碎带蚀变岩型铜矿床。结合以上特征,总结了绿梁山铜矿床找矿标志,指出了下一步找矿方向,为该区相同类型矿床的勘查工作提供了思路和理论依据。
Lyuliangshan copper deposit of Qinghai Province is located in the northern margin of the junction between Qaidam block and South Qilian block,and is one of the important polymetallic deposits in Western China.By studying the geological characteristics of Lyuliangshan copper deposit,the authors summarized the geological characteristics of the deposit. The ore bodies of the deposits are hosted in the metavolcanite of Cambrian-Ordovician Tanjianshan Group. The wall rock alteration is associated with silication,pyritization,chloritization,epidotization and sericitization. The main ore types are copper-bearing quratz vein type and copper-bearing altered rock type. Lyuliangshan copper deposit is of an alteration type in fracture zones. Above all,the authors summarized the ore-controlling factors and indicated the prospecting direction,and provided some new ideas for the copper exploration in Qinghai Province.
Lyuliangshan copper deposit of Qinghai Province is located in the northern margin of the junction between Qaidam block and South Qilian block,and is one of the important polymetallic deposits in Western China.By studying the geological characteristics of Lyuliangshan copper deposit,the authors summarized the geological characteristics of the deposit. The ore bodies of the deposits are hosted in the metavolcanite of Cambrian-Ordovician Tanjianshan Group. The wall rock alteration is associated with silication,pyritization,chloritization,epidotization and sericitization. The main ore types are copper-bearing quratz vein type and copper-bearing altered rock type. Lyuliangshan copper deposit is of an alteration type in fracture zones. Above all,the authors summarized the ore-controlling factors and indicated the prospecting direction,and provided some new ideas for the copper exploration in Qinghai Province.
引文
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[2]常艳,杜晓慧,张百忍.国外低品位铜矿分布与利用技术现状[J].中国地质调查,2016,3(3):62-66.
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[4]祝新友,邓吉牛,王京彬,等.锡铁山矿床两类喷流沉积成因的铅锌矿体研究[J].矿床地质,2006,25(3):252-262.
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[10]王莉娟,彭志刚,祝新友,等.青海省锡铁山Sedex型铅锌矿床成矿流体来源及演化——流体包裹体及同位素地球化学证据[J].岩石学报,2009,25(11):3007-3015.
[11]张德全,党兴彦,李大新,等.柴北缘地区的两类块状硫化物矿床——Ⅱ.青龙滩式VHMS型Cu-S矿床[J].矿床地质,2005,24(6):575-583.
[12]徐广东,郑有业,许荣科,等.青海绿梁山铜矿找矿信息的提取与成矿预测[J].地质与勘探,2013,49(3):444-452.
[13]许荣科,郑有业,周宾,等.柴北缘绿梁山一带与造山作用相关的铜铅锌矿床成矿规律及找矿启示[J].西北地质,2012,45(1):192-201.
[14]傅星.青海绿梁山地区金矿床地质特征及成矿条件浅析[J].黄金科学技术,2010,18(4):54-57.
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[16]许志琴,杨经绥,吴才来,等.柴达木北缘超高压变质带形成与折返的时限及机制[J].地质学报,2003,77(2):163-176.
[17]陆松年,王惠初,李怀坤,等.柴达木盆地北缘“达肯大坂群”的再厘定[J].地质通报,2002,21(1):19-23.
[18]杨经绥,宋述光,许志琴,等.柴达木盆地北缘早古生代高压—超高压变质带中发现典型超高压矿物——柯石英[J].地质学报,2001,75(2):175-179.
[19]赖绍聪,邓晋福,赵海玲.柴达木盆地北缘古生代蛇绿岩及其构造意义[J].现代地质,1996,10(1):18-28.
[20]史仁灯,杨经绥,吴才来,等.柴达木北缘超高压变质带中的岛弧火山岩[J].地质学报,2004,78(1):52-64.
[21]王惠初,陆松年,莫宣学,等.柴达木盆地北缘早古生代碰撞造山系统[J].地质通报,2005,24(7):603-612.
[22]朱小辉,陈丹玲,刘良,等.柴北缘绿梁山地区早古生代弧后盆地型蛇绿岩的年代学、地球化学及大地构造意义[J].岩石学报,2014,30(3):822-834.
[23]刘嘉,许荣科,曾小华,等.青海省绿梁山蛇绿岩超基性岩型硫化镍矿床特征研究[J].矿床地质,2014,33(增刊):423-424.
[24]孙延贵,郝维杰,韩英善,等.柴达木盆地北缘东段托莫尔日特似蛇绿岩岩石组合特征[J].中国区域地质,2000,19(3):258-264.
[25]张建新,孟繁聪,于胜尧,等.柴北缘绿梁山高压基性麻粒岩的变质演化历史——岩石学及锆石SHRIMP年代学证据[J].地学前缘,2007,14(1):85-97.
[26]宋述光,杨经绥.柴达木盆地北缘都兰地区榴辉岩中透长石+石英包裹体——超高压变质作用的证据[J].地质学报,2001,75(2):180-185.
[27]李怀坤,陆松年,赵风清,等.柴达木盆地北缘鱼卡河含柯石英榴辉岩的确定及其意义[J].现代地质,1999,13(1):43-50.
[28]杨经绥,许志琴,宋述光,等.青海都兰榴辉岩的发现及对中国中央造山带内高压—超高压变质带研究的意义[J].地质学报,2000,74(2):156-168.
[29]张建新,孟繁聪,戚学祥.柴达木盆地北缘大柴旦和锡铁山榴辉岩中石榴子石环带对比及地质意义[J].地质通报,2002,21(3):123-129.
[30]Song S G,Zhang L F,Niu Y L.Ultra-deep origin of garnet peridotite from the North Qaidam ultrahigh-pressure belt,Northern Tibetan Plateau,NW China[J].Amer Mineral,2004,89(8/9):1330-1336.
[31]Zhang J X,Yang J S,Xu Z Q,et al.Evidence for UHP metamorphism of eclogites from the Altun Mountains[J].Chin Sci Bull,2002,47(9):751-755.
[2]常艳,杜晓慧,张百忍.国外低品位铜矿分布与利用技术现状[J].中国地质调查,2016,3(3):62-66.
[3]王元东,阎晓寅,张露舰.新疆和静县乔霍特铜矿地质特征[J].山东国土资源,2013,29(6):6-9.
[4]祝新友,邓吉牛,王京彬,等.锡铁山矿床两类喷流沉积成因的铅锌矿体研究[J].矿床地质,2006,25(3):252-262.
[5]祝新友,邓吉牛,王京彬,等.锡铁山喷流沉积矿床卤水与海水的相互作用[J].地质论评,2007,53(1):52-64.
[6]祝新友,王莉娟,朱谷昌,等.青海锡铁山铅锌矿床硫同位素地球化学研究——深源与海水硫的混合[J].岩石学报,2010,26(3):657-666.
[7]张德全,王富春,李大新,等.柴北缘地区的两类块状硫化物矿床——Ⅰ.锡铁山式SEDEX型铅锌矿床[J].矿床地质,2005,24(5):471-480.
[8]孙华山,赵立军,吴冠斌,等.锡铁山块状硫化物铅锌矿床成矿构造环境及矿区南部找矿潜力:来自滩间山群火山岩岩石化学、地球化学证据[J].岩石学报,2012,28(2):652-664.
[9]王莉娟,祝新友,王京斌,等.青海锡铁山铅锌矿床喷流沉积系统(SEDEX)成矿流体的初步研究[J].岩石学报,2008,24(10):2433-2440.
[10]王莉娟,彭志刚,祝新友,等.青海省锡铁山Sedex型铅锌矿床成矿流体来源及演化——流体包裹体及同位素地球化学证据[J].岩石学报,2009,25(11):3007-3015.
[11]张德全,党兴彦,李大新,等.柴北缘地区的两类块状硫化物矿床——Ⅱ.青龙滩式VHMS型Cu-S矿床[J].矿床地质,2005,24(6):575-583.
[12]徐广东,郑有业,许荣科,等.青海绿梁山铜矿找矿信息的提取与成矿预测[J].地质与勘探,2013,49(3):444-452.
[13]许荣科,郑有业,周宾,等.柴北缘绿梁山一带与造山作用相关的铜铅锌矿床成矿规律及找矿启示[J].西北地质,2012,45(1):192-201.
[14]傅星.青海绿梁山地区金矿床地质特征及成矿条件浅析[J].黄金科学技术,2010,18(4):54-57.
[15]邬介人,任秉琛,张苺,等.青海锡铁山块状硫化物矿床的类型及地质特征[J].中国地质科学院西安地质矿产研究所所刊,1987(20):1-81,83-88.
[16]许志琴,杨经绥,吴才来,等.柴达木北缘超高压变质带形成与折返的时限及机制[J].地质学报,2003,77(2):163-176.
[17]陆松年,王惠初,李怀坤,等.柴达木盆地北缘“达肯大坂群”的再厘定[J].地质通报,2002,21(1):19-23.
[18]杨经绥,宋述光,许志琴,等.柴达木盆地北缘早古生代高压—超高压变质带中发现典型超高压矿物——柯石英[J].地质学报,2001,75(2):175-179.
[19]赖绍聪,邓晋福,赵海玲.柴达木盆地北缘古生代蛇绿岩及其构造意义[J].现代地质,1996,10(1):18-28.
[20]史仁灯,杨经绥,吴才来,等.柴达木北缘超高压变质带中的岛弧火山岩[J].地质学报,2004,78(1):52-64.
[21]王惠初,陆松年,莫宣学,等.柴达木盆地北缘早古生代碰撞造山系统[J].地质通报,2005,24(7):603-612.
[22]朱小辉,陈丹玲,刘良,等.柴北缘绿梁山地区早古生代弧后盆地型蛇绿岩的年代学、地球化学及大地构造意义[J].岩石学报,2014,30(3):822-834.
[23]刘嘉,许荣科,曾小华,等.青海省绿梁山蛇绿岩超基性岩型硫化镍矿床特征研究[J].矿床地质,2014,33(增刊):423-424.
[24]孙延贵,郝维杰,韩英善,等.柴达木盆地北缘东段托莫尔日特似蛇绿岩岩石组合特征[J].中国区域地质,2000,19(3):258-264.
[25]张建新,孟繁聪,于胜尧,等.柴北缘绿梁山高压基性麻粒岩的变质演化历史——岩石学及锆石SHRIMP年代学证据[J].地学前缘,2007,14(1):85-97.
[26]宋述光,杨经绥.柴达木盆地北缘都兰地区榴辉岩中透长石+石英包裹体——超高压变质作用的证据[J].地质学报,2001,75(2):180-185.
[27]李怀坤,陆松年,赵风清,等.柴达木盆地北缘鱼卡河含柯石英榴辉岩的确定及其意义[J].现代地质,1999,13(1):43-50.
[28]杨经绥,许志琴,宋述光,等.青海都兰榴辉岩的发现及对中国中央造山带内高压—超高压变质带研究的意义[J].地质学报,2000,74(2):156-168.
[29]张建新,孟繁聪,戚学祥.柴达木盆地北缘大柴旦和锡铁山榴辉岩中石榴子石环带对比及地质意义[J].地质通报,2002,21(3):123-129.
[30]Song S G,Zhang L F,Niu Y L.Ultra-deep origin of garnet peridotite from the North Qaidam ultrahigh-pressure belt,Northern Tibetan Plateau,NW China[J].Amer Mineral,2004,89(8/9):1330-1336.
[31]Zhang J X,Yang J S,Xu Z Q,et al.Evidence for UHP metamorphism of eclogites from the Altun Mountains[J].Chin Sci Bull,2002,47(9):751-755.