| 环巴尔喀什-西准噶尔成矿省矿床类型、成矿系统和跨境成矿带对接 |
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| 引用本文： | 申萍,周涛发,袁峰,潘鸿迪,王居里,SEITMURATOVA Eleonora.环巴尔喀什-西准噶尔成矿省矿床类型、成矿系统和跨境成矿带对接[J].岩石学报,2015,31(2):285-303. |
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| 作者姓名： | 申萍 周涛发 袁峰 潘鸿迪 王居里 SEITMURATOVA Eleonora |
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| 作者单位： | 中国科学院地质与地球物理研究所, 中国科学院矿产资源研究重点实验室, 北京 100029;合肥工业大学资源与环境工程学院, 合肥 230009;合肥工业大学资源与环境工程学院, 合肥 230009;长安大学地球科学与资源学院, 西安 710052;大陆动力学国家重点实验室, 西北大学地质学系, 西安 710069;沙特巴耶夫地质研究所, 地层实验室, 阿拉木图 050010 |
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| 基金项目： | 本文受国家自然科学基金项目(U1303293、41390442、41272109)、中国科学院重点部署项目(KJZD-EW-TZ-G07)和国际科技交流与合作专项(2010DFB23390)及国家"305"项目(2011BAB06B01)联合资助. |
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| 摘 要： | 环巴尔喀什-西准噶尔成矿省地处中亚成矿域核心区,古生代构造和岩浆活动强烈,成矿作用丰富多样,发育许多大型-超大型乃至世界级的金属矿床,包括斑岩型铜矿床、斑岩-石英脉-云英岩型钨钼矿床、矽卡岩型铜(多金属)矿床、火山成因块状硫化物型(VMS)多金属矿床、浅成低温热液型金矿床、石英脉-蚀变岩型中温热液金矿床、与花岗岩有关的Be-U矿床、岩浆熔离型铜镍硫化物矿床和豆荚状铬铁矿等,这些矿床集中分布,形成多处成矿带,包括哈萨克斯坦的扎尔玛-萨吾尔、波谢库尔-成吉斯和北巴尔喀什等成矿带以及新疆西准噶尔的萨吾尔、谢米斯台-沙尔布提和巴尔鲁克-克拉玛依等成矿带。哈萨克斯坦包含大型-超大型和世界级金属矿床的成矿带向东是否延入新疆西准噶尔?能否实现新疆西准噶尔找矿重大突破?都是备受关注的重大地质找矿问题。本文在前人研究并结合作者工作基础上,根据成矿带的成矿构造环境、矿床类型、成矿特点和成矿时代,总结出成矿省至少发育九类成矿系统,即(1)奥陶纪-志留纪岛弧斑岩型Cu-Au成矿系统;(2)奥陶纪岛弧VMS型多金属成矿系统;(3)泥盆纪岛弧岩浆熔离型铜镍硫化物成矿系统;(4)泥盆纪与蛇绿岩有关的豆荚状铬铁矿成矿系统;(5)早石炭世岛弧斑岩-浅成低温热液型Cu-Au成矿系统;(6)石炭纪岛弧斑岩型-矽卡岩型Cu-Mo-Au成矿系统;(7)晚石炭世弧后盆地与花岗岩有关的Be-U成矿系统;(8)早二叠世岛弧或岛弧和陆缘弧过渡弧斑岩-石英脉-云英岩型Mo-W成矿系统;(9)早二叠世岛弧石英脉-蚀变岩型中温热液金成矿系统。对比研究发现境内外相邻成矿带具有相同或相似的成矿系统,二者可以对接,新疆西准噶尔三条成矿带分别是哈萨克斯坦三条成矿带的东延部分,构成了成矿省北部的扎尔玛-萨吾尔Cu-Au成矿带、中部的波谢库尔-成吉斯-谢米斯台Cu-Au-Be-U多金属成矿带和南部的北巴尔喀什-克拉玛依Cu-Mo-W-Au-Cr成矿带。新疆西准噶尔具有形成大型-超大型矿床的成矿系统和成矿条件,有望实现找矿勘探的更大突破。
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| 关 键 词： | 成矿系统 成矿带 环巴尔喀什-西准噶尔 中亚成矿域 |
| 收稿时间： | 2014/12/10 0:00:00 |
| 修稿时间： | 2014/12/25 0:00:00 |
Main deposit types, mineral systems, and metallogenic belt connections in the Circum-Balkhash-West Junggar metallogenic province |
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| SHEN Ping,ZHOU TaoF,YUAN Feng,PAN HongDi,WANG JuLi and SEITMURATOVA Eleonora.Main deposit types, mineral systems, and metallogenic belt connections in the Circum-Balkhash-West Junggar metallogenic province[J].Acta Petrologica Sinica,2015,31(2):285-303. |
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| Authors: | SHEN Ping ZHOU TaoF YUAN Feng PAN HongDi WANG JuLi and SEITMURATOVA Eleonora |
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| Institution: | Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China;School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China;College of Earth Sciences and Resources, Chang'an University, Xi'an 71005;State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an 710069, China;Laboratory of Geological Formations, K. Satpaev Institute of Geological Sciences, Almaty 050010, Kazakhstan |
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| Abstract: | Circum-Balkhash-West Junggar metallogenic province, located in the core area of the Central Asian metallogenic domain, is characterized by intense tectonic and magmatic activity, abundant mineral resources and several metallogenic belts in Paleozoic. Main ore deposits include porphyry type Cu, porphyry-quartz vein-greisen type Mo-W, skarn type Cu polymetallic, volcanic massive sulfide (VMS) type polymetallic, epithermal hydrothermal Au, quartz vein-altered rock type medium temperature hydrothermal Au, magma liquation type Cu-Ni sulfide, granite-related Be-U, and podiform chromite deposits. These deposits occurred in a limited area, forming several metallogenic belts. They are Zharma-Saur, Bozshakol-Chingiz and North Balkhash belts in the Balkhash region, Kazakhstan and Saur, Xiemisitai-Sharburti and Barluke-Kalamay belts in the West Junggar region, China. Whether these belts containing the large or world-class ore deposits in Kazakhstan can be extended into China? Whether these giant metal deposits in Kazakhstan were found in the ore belts in China? All significant geological and exploration problems are paid much more attention. Based on previous studies and our present works, according to the metallogenic tectonic setting, deposit types, mineralization characteristics and ages, the mineral systems on this province are divided into nine types at least: (1) Ordovician-Silurian island arc porphyry Cu-Au system; (2) Ordovician island arc volcanic massive sulfide (VMS) Au polymetallic system; (3) Devonian island arc magma liquation Cu-Ni sulfide system; (4) Devonian ophiolite-related podiform chromite system; (5) Early Carboniferous island arc porphyry or porphyry-epithermal hydrothermal Cu-Au system; (6) Carboniferous island arc porphyry-skarn Cu-Mo-Au system; (7) Late Carboniferous back-arc basin granite-related Be-U system; (8) Early Permian island arc or transition arc between island arc and continental arc porphyry-quartz vein-greisen Mo-W system; (9) Early Permian island arc quartz vein-altered rock medium temperature hydrothermal Au system. Comparison these systems in these belts, three belts in China have the same mineral system as these belts in Kazakhstan, respectively. Three belts in Kazakhstan firmly enter into China. They are the Zharma-Saur, Bozshakol-Chingiz-Xiemisitai and North Balkhash-Kalamay metallogenic belts which occur both in the West Junggar region, China and in adjacent Balkhash region, Kazakhstan. Thus, the West Junggar region has a perfect mineralization system and precondition and is hopefully to discover the giant deposits. |
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| Keywords: | Mineral system Metallogenic belt Circum-Balkhash-West Junggar Central Asian metallogenic domain |
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