延边东部五道沟脉型白钨矿矿床地质特征及流体包裹体

J4 ›› 2011, Vol. 41 ›› Issue (6): 1736-1744.

• 兴蒙造山带及邻区中生代岩浆活动与金属成矿作用专辑 • 上一篇下一篇

延边东部五道沟脉型白钨矿矿床地质特征及流体包裹体

任云生¹|鞠楠¹|赵华雷¹|王辉¹|卢秀全²|吴昌志³

1.吉林大学地球科学学院|长春130061;
2.吉林省有色金属地质勘查局603队|吉林珲春133300;
3.南京大学内生金属矿床成矿机制研究国家重点实验室|南京210093

收稿日期:2011-04-05 出版日期:2011-11-26 发布日期:2011-11-26
作者简介:任云生(1969-)|男|河北滦县人|教授|博士|主要从事矿床地质学的教学与研究|Tel：0431-88502046|E-mail:renys@jlu.edu.cn
基金资助:
中国地质调查局项目(1212011085485)；吉林大学科学前沿与交叉学科创新项目(200903025)；南京大学内生金属矿床成矿机制研究国家重点实验室开放基金( 14-08-11)

Geological Characteristics and Fluid Inclusions of Wudaogou Lode Scheelite Deposit in Eastern Yanbian, Jilin Province

REN Yun-sheng¹,JU Nan¹,ZHAO Hua-lei¹,WANG Hui¹,LU Xiu-quan²,WU Chang-zhi³

1.College of Earth Sciences, Jilin University, Changchun130061, China;
2.No. 603 Geological Party, Jilin Bureau of Geological Exploration for Nonferrous Metals, Hunchun133300, Jilin, China;
3.State Key Laboratory for Mineral Deposits Research, Nanjing University, Nanjing210093, China

Received:2011-04-05 Online:2011-11-26 Published:2011-11-26

摘要/Abstract

摘要：

延边东部五道沟矿床内的钨矿体主要呈平行脉状赋存于华力西晚期蚀变花岗闪长岩中，与相邻的杨金沟大型钨矿相比，具有矿脉数量少、单脉厚度大和品位高的特点；矿石中金属矿物以白钨矿为主，呈团块状、粗粒浸染状、细脉状产于石英脉及碎裂蚀变围岩中，具有热液脉型矿床的矿化特征。主成矿阶段形成的粗粒白钨矿及石英颗粒中主要发育气液两相包裹体，白钨矿颗粒中尚含少量的含CO₂三相包裹体。石英中气液两相包裹体均一温度主要介于171.2～268.0℃，热液盐度(w(NaCl))为0.70%～10.74%；白钨矿中气液两相包裹体的均一温度变化范围为209.6～253.3℃，热液盐度为1.39%～8.67%；白钨矿中2个含CO₂三相包裹体完全均一温度分别为287.2℃和294.7℃。结合单个包裹体气相组分分析，认为五道沟白钨矿矿床的成矿流体为中温、低盐度的NaCl-H₂O-CO₂体系，并含一定数量的N₂等气体。该矿床与杨金沟大型钨矿综合对比表明：两矿床具有相似的成矿地质背景和控矿条件，围岩蚀变、矿石矿物组成、矿石组构及白钨矿赋存状态等矿化特征基本相同，不同赋矿围岩中含矿构造性质不同应是两矿区钨矿体形态、产状和规模差异的主控因素。

关键词: 地质特征, 流体包裹体, 矿床成因, 五道沟钨矿床, 延边地区

Abstract:

Tungsten mineralization of Wudaogou ore deposit occurs mainly in the Late Indosinian altered granodiorite as parallel scheelite-quartz veins. Compared with the adjacent Yangjingou ore deposit, some of the ore veins in Wudaogou are characterized by large thickness and high ore grade. As the most important ore mineral, the scheelite grains are distributed in massive, coarse-grained disseminated and veinlet forms in quartz veins and altered host rocks. Fluid inclusions are dominated by gas-liquid ones in both scheelite and quartz grains formed at the major ore-forming stage. Moreover, two CO₂-bearing three-phase inclusions are also observed in scheelite grains. Homogenization temperatures and salinities of gas-liquid inclusions in quartz vary mainly from 171.2 to 268.0℃ and from 0.70%NaCl to 10.74%NaCl, respectively, whereas those in scheelite grains vary from 209.6 to 253.3℃ and from 1.39%NaCl to 8.67%NaCl respectively. Homogenization temperatures of two CO₂-bearing three-phase inclusions in the scheelite are 287.2 and 294.7℃. A comprehensive study of compositional and microthermometric analytical results of fluid inclusions has led to the conclusion that the oreforming fluid from Wudaogou ore deposit belongs to the NaCl-H₂O-CO₂ hydrothermal system with medium temperature, low salinity and minor N₂. A comparative study of Wudaogou and Yangjingou scheelite deposits indicates that they were formed in similar geological settings with the same hydrothermal alteration, mineral assemblage, ore textures and structures as well as modes of occurrence of the scheelite. The two ore deposits are genetically related to a common hydrothermal scheelite mineralization event. Since the two ore deposits have different ore-controlling structures, the ore bodies in the two ore deposits have different attitudes, shapes and sizes.

Key words: geological characteristics, fluid inclusion, ore genesis, Wudaogou scheelite deposit, eastern Yanbian area

中图分类号:

P618.67

任云生, 鞠楠, 赵华雷, 王辉, 卢秀全, 吴昌志. 延边东部五道沟脉型白钨矿矿床地质特征及流体包裹体[J]. J4, 2011, 41(6): 1736-1744.

REN Yun-sheng, JU Nan, ZHAO Hua-lei, WANG Hui, LU Xiu-quan, WU Chang-zhi. Geological Characteristics and Fluid Inclusions of Wudaogou Lode Scheelite Deposit in Eastern Yanbian, Jilin Province[J]. J4, 2011, 41(6): 1736-1744.

参考文献

相关文章 15

[1]	李向文, 张志国, 王可勇, 孙加鹏, 杨吉波, 杨贺. 大兴安岭北段宝兴沟金矿床成矿流体特征及矿床成因[J]. 吉林大学学报(地球科学版), 2018, 48(4): 1071-1084.
[2]	李文强, 郭巍, 孙守亮, 杨绪海, 刘帅, 侯筱煜. 塔里木盆地巴楚—麦盖提地区古生界油气藏成藏期次[J]. 吉林大学学报(地球科学版), 2018, 48(3): 640-651.
[3]	陈瑞莉, 陈正乐, 伍俊杰, 梁志录, 韩凤彬, 王永, 肖昌浩, 韦良喜, 沈滔. 甘肃合作早子沟金矿床流体包裹体及硫铅同位素特征[J]. 吉林大学学报(地球科学版), 2018, 48(1): 87-104.
[4]	和成忠, 张德会, 吴鸣谦, 夏岩, 张荣臻, 胡铁军. 辽宁青城子姚家沟斑岩型钼矿流体包裹体[J]. 吉林大学学报(地球科学版), 2017, 47(6): 1717-1731.
[5]	门兰静, 孙景贵, 王好均, 柴鹏, 赵克强, 古阿雷, 刘城先. 延边浅成高硫化热液金矿床的成矿流体起源与演化:以杜荒岭和九三沟矿床为例[J]. 吉林大学学报(地球科学版), 2017, 47(5): 1365-1382.
[6]	陈晶源, 王长明, 贺昕宇, 陈良, 吴彬, 王乔, 张端, 姚恩亚, 董猛猛. 河南瓦房铅锌矿床地质、流体包裹体和稳定同位素特征[J]. 吉林大学学报(地球科学版), 2017, 47(5): 1383-1404.
[7]	陈斐然, 张颖, 徐祖新, 谭程, 周肖肖. 全球前寒武—寒武系含油气盆地石油地质特征及成藏主控因素[J]. 吉林大学学报(地球科学版), 2017, 47(4): 974-989.
[8]	张艳, 韩润生, 魏平堂, 邱文龙. 云南会泽矿山厂铅锌矿床流体包裹体特征及成矿物理化学条件[J]. 吉林大学学报(地球科学版), 2017, 47(3): 719-733.
[9]	郝立波, 赵昕, 赵玉岩. 辽宁白云金矿床稳定同位素地球化学特征及矿床成因[J]. 吉林大学学报(地球科学版), 2017, 47(2): 442-451.
[10]	赵彦德, 齐亚林, 罗安湘, 程党性, 李继宏, 黄锦绣. 应用流体包裹体和自生伊利石测年重构鄂尔多斯盆地侏罗系油藏烃类充注史[J]. 吉林大学学报(地球科学版), 2016, 46(6): 1637-1648.
[11]	王力, 孙丽伟. 山东省寺庄金矿床成矿流体特征[J]. 吉林大学学报(地球科学版), 2016, 46(6): 1697-1710.
[12]	张延军, 孙丰月, 李碧乐, 李良, 陈扬. 青海湟中县三岔金矿流体包裹体特征及矿床成因[J]. 吉林大学学报(地球科学版), 2016, 46(5): 1342-1353.
[13]	王晰, 段明新, 任云生, 侯召硕, 孙德有, 郝宇杰. 内蒙古额尔古纳地区八大关铜钼矿床流体包裹体特征与成矿时代[J]. 吉林大学学报(地球科学版), 2016, 46(5): 1354-1367.
[14]	温志良, 姜福平, 钟长林, 姜雪飞, 王果谦, 齐岩. 松辽盆地东南隆起超大型油页岩矿床特征及成因[J]. 吉林大学学报(地球科学版), 2016, 46(3): 681-691.
[15]	吴海枝, 韩润生, 吴鹏. 楚雄盆地六苴砂岩型铜矿床成矿流体性质及演化[J]. 吉林大学学报(地球科学版), 2016, 46(2): 398-411.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

延边东部五道沟脉型白钨矿矿床地质特征及流体包裹体

Geological Characteristics and Fluid Inclusions of Wudaogou Lode Scheelite Deposit in Eastern Yanbian, Jilin Province

PDF (PC)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0