青海格尔木卡而却卡铜多金属矿床地质特征与成矿模式
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摘要
卡尔却卡铜多金属矿床位于东昆仑祁漫塔格成矿带,为该区近年来发现的最重要矿床之一。本文通过对卡尔却卡铜多金属矿床地质特征及同位素地球化学特征的详细剖析,并结合其成岩成矿时代,认为卡尔却卡铜矿为广义斑岩型矿床,即以侵入体为中心的斑岩型-矽卡岩型矿床,外围赋存于沉积岩内的矽卡岩-热液型矿床和远离岩体的断层破碎带内的浅成低温热液矿床组成的斑岩矿床成矿系。
Kaerqueka copper polymetallic deposit,which was found recently in Qimantage metallogenic belt of East Kunlun of Qinghai province,is one of the most important deposits in its area.An analysis on geological and isotopic-geochemical characteristics of Kaerqueka copper polymetallic deposit and its diagenetic and mineralogenetic age suggests that Kaerqueka copper deposit is a generalized porphyry deposit,namely aporphyry metallogenic system which consists of intrusive body-centered porphyry-skarn type deposits,peripheral sedimentary rock-hosted skarn-hydrothermal deposits and epithermal deposits that lies inside fault fracture zone from which rock bodies are far away.
Kaerqueka copper polymetallic deposit,which was found recently in Qimantage metallogenic belt of East Kunlun of Qinghai province,is one of the most important deposits in its area.An analysis on geological and isotopic-geochemical characteristics of Kaerqueka copper polymetallic deposit and its diagenetic and mineralogenetic age suggests that Kaerqueka copper deposit is a generalized porphyry deposit,namely aporphyry metallogenic system which consists of intrusive body-centered porphyry-skarn type deposits,peripheral sedimentary rock-hosted skarn-hydrothermal deposits and epithermal deposits that lies inside fault fracture zone from which rock bodies are far away.
引文
[1]李东生,古凤宝,张海兰,等.青海省卡而却卡斑岩型铜矿地质特征及找矿意义[J].西北地质,2012,45(1):174-183.
[2]张雪亭,杨生德,等.青海省板块构造研究:1:100万青海省大地构造图说明书[M].北京:地质出版社,2007.
[3]李东生,张占玉,苏生顺,等.青海卡尔却卡铜钼矿床地质特征及成因[J].西北地质,2010,43(4):239-244.
[4]丰成友,李东生,屈文俊,等.青海祁漫塔格索拉吉尔矽卡岩型铜钼矿床辉钼矿铼-锇同位素定年及其地质意义[J].岩矿测试,2009,28(3):223-227.
[5]丰成友,李东生,吴正寿,等.东昆仑祁漫塔格成矿带矿床类型、时空分布及多金属成矿作用[J].西北地质,2010,43(4):10-17.
[6]李世金,孙丰月,丰成友,等.青海东昆仑鸭子沟多金属矿的成矿年代学研究[J].地质学报,2008,82(7):949-955.
[7]景向阳,王维,张永胜,等.青海省茫崖镇乌兰乌珠尔铜矿床地质特征、成因类型及其找矿前景分析[J].矿产与地质,2010,24(3):222-228.
[8]朱炳泉.地球科学中同位素体系理论与应用[M].北京:科学出版社,1998.
[9]Rollinson HR.Using Geochemical Data:Evalution,Presentation,Interpretation[M].Longman Scientific and Technical Press,1993.306-308.
[10]王松.青海祁漫塔格地区卡尔却卡铜多金属矿床地球化学特征及成矿模式[D].中国地质科学研究院,2009.
[11]徐国端.青海祁漫塔格多金属成矿带典型矿床地质地球化学研究[D].昆明理工大学,2010.
[12]马圣钞,丰成友,李国臣,等.青海虎头崖铜铅锌多金属矿床硫、铅同位素组成及成因意义[J].地质与勘探,2012,48(2):321-331.
[13]王松,丰成友,李世金,等.青海祁漫塔格卡尔却卡铜多金属矿区花岗闪长岩锆石SHRIMP U-Pb测年及其地质意义[J].中国地质,2009,36(1):74-84.
[14]郭正府,邓晋福,许志琴,等.青藏东昆仑晚古生代末-中生代中酸性火成岩与陆内造山过程[J].现代地质,1998,12(3):344-352.
[15]刘成东,莫宣学,罗照华,等.东昆仑壳-幔岩浆混合作用:来自锆石SHRIMP年代学的证据[J].科学通报,2004,49(6):592-602.
[16]姜春发,王宗起,李锦铁.中央造山带开合构造[M].北京:地质出版社,2000:1-154.
[17]宋文彬,赖健清,黄敏,等.2012.青海省卡而却卡铜多金属矿床流体包裹体特征及成矿流体[J].中国有色金属学报,22(3):733-742.
[18]毛景文,邵拥军,谢桂青,等.长江中下游成矿带铜陵矿集区铜多金属矿床模型[J].矿床地质,28(2):109-119.
[2]张雪亭,杨生德,等.青海省板块构造研究:1:100万青海省大地构造图说明书[M].北京:地质出版社,2007.
[3]李东生,张占玉,苏生顺,等.青海卡尔却卡铜钼矿床地质特征及成因[J].西北地质,2010,43(4):239-244.
[4]丰成友,李东生,屈文俊,等.青海祁漫塔格索拉吉尔矽卡岩型铜钼矿床辉钼矿铼-锇同位素定年及其地质意义[J].岩矿测试,2009,28(3):223-227.
[5]丰成友,李东生,吴正寿,等.东昆仑祁漫塔格成矿带矿床类型、时空分布及多金属成矿作用[J].西北地质,2010,43(4):10-17.
[6]李世金,孙丰月,丰成友,等.青海东昆仑鸭子沟多金属矿的成矿年代学研究[J].地质学报,2008,82(7):949-955.
[7]景向阳,王维,张永胜,等.青海省茫崖镇乌兰乌珠尔铜矿床地质特征、成因类型及其找矿前景分析[J].矿产与地质,2010,24(3):222-228.
[8]朱炳泉.地球科学中同位素体系理论与应用[M].北京:科学出版社,1998.
[9]Rollinson HR.Using Geochemical Data:Evalution,Presentation,Interpretation[M].Longman Scientific and Technical Press,1993.306-308.
[10]王松.青海祁漫塔格地区卡尔却卡铜多金属矿床地球化学特征及成矿模式[D].中国地质科学研究院,2009.
[11]徐国端.青海祁漫塔格多金属成矿带典型矿床地质地球化学研究[D].昆明理工大学,2010.
[12]马圣钞,丰成友,李国臣,等.青海虎头崖铜铅锌多金属矿床硫、铅同位素组成及成因意义[J].地质与勘探,2012,48(2):321-331.
[13]王松,丰成友,李世金,等.青海祁漫塔格卡尔却卡铜多金属矿区花岗闪长岩锆石SHRIMP U-Pb测年及其地质意义[J].中国地质,2009,36(1):74-84.
[14]郭正府,邓晋福,许志琴,等.青藏东昆仑晚古生代末-中生代中酸性火成岩与陆内造山过程[J].现代地质,1998,12(3):344-352.
[15]刘成东,莫宣学,罗照华,等.东昆仑壳-幔岩浆混合作用:来自锆石SHRIMP年代学的证据[J].科学通报,2004,49(6):592-602.
[16]姜春发,王宗起,李锦铁.中央造山带开合构造[M].北京:地质出版社,2000:1-154.
[17]宋文彬,赖健清,黄敏,等.2012.青海省卡而却卡铜多金属矿床流体包裹体特征及成矿流体[J].中国有色金属学报,22(3):733-742.
[18]毛景文,邵拥军,谢桂青,等.长江中下游成矿带铜陵矿集区铜多金属矿床模型[J].矿床地质,28(2):109-119.