| 黑龙江省羊鼻山铁钨矿床中钨矿成因及物质来源 |
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| 引用本文： | 马宇鹏,任云生,郝宇杰,赖科,赵华雷,刘军.黑龙江省羊鼻山铁钨矿床中钨矿成因及物质来源[J].吉林大学学报(地球科学版),2018(1):105-117. |
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| 作者姓名： | 马宇鹏 任云生 郝宇杰 赖科 赵华雷 刘军 |
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| 作者单位： | 吉林大学地球科学学院,长春,130061
吉林大学地球科学学院,长春130061;东北亚矿产资源评价国土资源部重点实验室,长春 130061
中国地质调查局天津地质调查中心,天津,300170
黑龙江建龙钢铁有限公司,黑龙江双鸭山,155126 |
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| 基金项目： | 国家重点研发计划项目(2017YFC0601304)，国家重点基础研究发展计划(“973”计划)项目(2013CB429802)，国家自然科学基金项目(41272094)Supported by National Key Research and Development Program of China(2017YFC0601304)，National Basic Research Program ("973" Program) of China(2013CB429802)，National Natural Science Foundation of China(41272094) |
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| 摘 要： | 黑龙江省双鸭山市羊鼻山铁钨矿床处于中亚造山带东段的佳木斯地块中部。兴东群大盘道组变质岩系为矿区主要赋矿地层,铁矿矿体呈层状、似层状赋存于大盘道组第一岩段,白钨矿矿体呈透镜状和脉状产于铁矿矿体底板围岩中,受片麻状花岗岩与大盘道组大理岩的接触带控制;主要含矿岩石为石榴石矽卡岩和透辉石矽卡岩,钨矿石中主要金属矿物为磁黄铁矿和白钨矿,并含少量磁铁矿、黄铁矿、黄铜矿、闪锌矿、锡石、毒砂和辉钼矿。含钨石英脉中δ~(18)O_水值为3.6‰~7.5‰,δD值为-120.9‰~-66.2‰,表明其成矿流体以岩浆水为主。矽卡岩中与白钨矿共生的金属硫化物δ~(34)S值为16.1‰~18.1‰,~(206)Pb/~(204)Pb值为17.879~18.863,~(207)Pb/~(204)Pb值为15.537~15.603,~(208)Pb/~(204)Pb值为38.202~38.544,表明金属硫化物中的硫和铅主要来源于地层与地壳重熔型岩浆。结合钨矿成矿地质特征,认为羊鼻山铁钨矿床中钨矿的成因类型应属矽卡岩型。
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| 关 键 词： | S-Pb同位素 流体来源 钨矿成因 羊鼻山铁钨矿床 佳木斯地块 S-Pb isotope fluid sources genesis of the tungsten mineralization Yangbishan iron-tungsten deposit Jiamusi massif |
Genesis and Material Source of Scheelite of Yangbishan Iron-Tungsten Deposit in Heilongjiang,NE China |
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| Ma Yupeng,Ren Yunsheng,Hao Yujie,Lai Ke,Zhao Hualei,Liu Jun.Genesis and Material Source of Scheelite of Yangbishan Iron-Tungsten Deposit in Heilongjiang,NE China[J].Journal of Jilin Unviersity:Earth Science Edition,2018(1):105-117. |
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| Authors: | Ma Yupeng Ren Yunsheng Hao Yujie Lai Ke Zhao Hualei Liu Jun |
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| Abstract: | The Yangbishan iron-tungsten deposit is located in Shuangyashan area of Heilongjiang Province,tectonically in the central of Jiamusi massif,the eastern Central Asian Orogenic Belt.The major ore-hosting strata in this area are the metamorphic rock series of Dapandao Formation in Xingdong Group.The layered iron orebodies are mainly hosted in the lowest rock section of Dapandao Formation.The lenticular and vein scheelite orebodies occur in the footwall of iron orebodies,and are controlled by the contact zone between the gneiss granite and the marble of Dapandao Formation.The ore-bearing rocks of tungsten mineralization in the Yangbishan deposit include garnet skarn and diopside skarn.The metallic minerals in the tungsten ore are mainly of scheelite and pyrrhotite,with a small amount of magnetite,pyrite,chalcopyrite,sphalerite,cassiterite,arsenopyrite and molybdenite.The δ18 Oq value of scheelite-quartz veins in the Yangbishan deposit is 10.9 ‰-14.8 ‰,the δ18O value is 3.6 ‰-7.5 ‰,and the δD value is-120.9 ‰--66.2 ‰,which show that the ore forming fluid of the scheelite mineralization is dominated by magmatic water.The δ34S value of metal sulfides in the skarn changes from 16.1‰ to 18.1‰,206Pb/204Pb value from 17.879 to 18.863,207Pb/204Pb value from 15.537 to 15.603,and 208Pb/204Pb value from 38.202 to 38.544.The data presented in this paper indicate that S and Pb in the metal sulfides mainly came from the ore-hosting strata and re-melted granitic magma.The geological characteristics of the tungsten mineralization in the Yangbishan deposit are similar to those of the skarn-type tungsten deposits.It can be concluded that the scheelite mineralization in the Yangbishan iron-tungsten deposit belongs to skarn-type deposits. |
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