云南巧家东坪铅锌矿床原生晕特征与找矿潜力

doi:10.13278/j.cnki.jjuese.20160287

摘要/Abstract

摘要： 云南省巧家县东坪铅锌矿床大地构造位置处于扬子地台西南缘，是滇东北地区一个典型的铅锌矿床。矿体赋存于震旦系灯影组白云岩中，呈脉状、似层状，并受断裂构造和Si/Ca面控制，矿石矿物以方铅矿、闪锌矿为主，近矿围岩蚀变有硅化、白云石化、黄铁矿化。硫、铅同位素分析显示，成矿流体的硫源主要是赋矿地层中的海水硫酸盐经热化学还原作用而成，铅来自壳源。岩石原生晕特征显示：成矿过程具有多阶段叠加，早期成矿作用以铅为主，并有微弱的锌矿化，而后受铅矿化强烈的叠加改造作用；钻孔S5ZK001→ZK001→S4ZK001近矿晕元素Pb、Zn组分从南西到北东向呈由浅部到深部的分布规律；钻孔ZK001→ZK701-1→ZK1701→ZK3901亦为由浅部到深部的分布规律；以ZK001为中心，向南东、北东矿体埋深加大，在北东部（S4ZK001）及南东部（ZK3901）深部还具有一定的找矿潜力。

关键词: 东坪铅锌矿床, 地质特征, 原生晕, 找矿潜力

Abstract: The Dongping Pb-Zn deposit,located in the southwest edge of Yangtze platform in the northeastern Yunnan, is a representative deposit with low research and exploitation. In the shape of vein and layer, the orebodies mainly occur in dolomites of the Sinian Dengying Formation, and are obviously controlled by the fractures and their Si/Ca surfaces. The major ore minerals are galena and sphalerite. The wall-rock alteration includes silicification, dolomitization, pyritization. The δ³⁴S‰ value of the sulfides implies that the sulfur was likely derived from seawater and went through a series of thermal chemical sulfate reduction (TSR). The lead isotopic composition of sulfides indicates an extremely radiogenic feature similar to that of the crust. The mineralization is characterized by multiple stages of ore-forming evolution and overlapped by late fluids. A great amounts of lead were formed in the major metallogenic stage with a little zinc formed in the early stage. The near halo Pb, Zn components in borehole S5ZK001→ZK001→S4ZK001 are distributed from shallow to deep from the south-west to the north-east, the same as with those of the borehole ZK001→ZK701-1→ZK1701→ZK3901. With ZK001 as the center, the ore bodies have a bigger buried depth in the south-east and north-east parts of it. There is a certain prospecting potential in the deep part of the north-east (S4ZK001) and the south-east (ZK3901).

Key words: Dongping Pb-Zn deposit, geology characteristics, primary halo characteristics, prospecting potential

中图分类号:

P588.1

明添学, 唐忠, 李永平, 罗建宏, 李蓉, 薛戈, 陈雷. 云南巧家东坪铅锌矿床原生晕特征与找矿潜力[J]. 吉林大学学报(地球科学版), 2018, 48(5): 1394-1404.

Ming Tianxue, Tang Zhong, Li Yongping, Luo Jianhong, Li Rong, Xue Ge, Chen Lei. Prospecting Potential and Primary Halo Characteristics of Dongping Pb-Zn Deposit in Qiaojia County, Yunnan[J]. Journal of Jilin University(Earth Science Edition), 2018, 48(5): 1394-1404.

参考文献

[1] 贺胜辉,荣惠锋,尚卫,等.云南茂租铅-锌矿床地质特征及成因研究[J].矿产与地质,2006,20(4/5):397-402. He Shenghui, Rong Huifeng, Shang Wei, et al. Geological Characterisitcs and Genesis of Maozu Lead and Zinc Deposit, Yunnan[J]. Mineral Resources and Geology,2006,20(4/5):397-402.
[2] 郭欣. 滇东北地区铅锌矿床成矿作用与成矿规律[D].北京:中国地质大学,2011. Guo Xin. Mineralization and Metallogenic Pattern of Lead and Zinc Deposit in Northeast Yunnan[D]. Beijing:China University of Geosciences,2011.
[3] 王苏,钟婷,姜永果.云南省昭通地区大中型铅锌矿床地质特征及成因对比分析[J].云南大学学报(自然科学版),2012,34(增刊2):185-189. Wang Su, Zhong Ting, Jiang Yongguo. The Comparable Analysis of Geochemical Characteristics and Cause on Large and Medium Sized Lead-Zinc Deposits Formation in Zhaotong City Area Yunnan Province[J]. Journal of Yunnan University(Natural Sciences Edition), 2012,34(Sup.2):185-189.
[4] 周家喜,黄智龙,高建国,等.滇东北茂租大型铅锌矿床成矿物质来源及成矿机制[J].矿物岩石,2012,32(3):62-69. Zhou Jiaxi, Huang Zhilong, Gao Jianguo, et al. Sources of Ore-Forming Metals and Fluids and Mechanism of Mineralization,Maozu Large Carbonare-Hosted Lead-Zinc Deposit, Northeast Yunnan Province[J]. Journal of Mineralogy and Petrology,2012,32(3):62-69.
[5] 刘文周.云南茂租铅锌矿矿床地质地球化学特征及成矿机制分析[J].成都理工大学学报(自然科学版),2009,36(5):480-486. Liu Wenzhou. Geological and Geochemical Charac-Teristics and Metallogenic Mechanism Analysis of the Pb-Zn Deposit in Maozu, Yunnan, China[J]. Journal of Chengdu University of Technology(Science & Technology Edition),2009,36(5):480-488.
[6] 赵准.滇东、滇东北地区铅锌矿床的成矿模式[J].云南地质,1995,14(4):350-354. Zhao Zhun. The Metallogenic Model of Pb-Zn Deposits in East and Northeast Yunnan[J]. Yunnan Geology,1995,14(4):350-354
[7] 张立生.滇东北地区层控Pb-Zn-(F-Ba)矿床的热液喀斯特成因[J].地球学报,1997,18(1):41-52. Zhang Lisheng. Hydrothermal Karst Genesis of Stratabound Pb-Zn-(F-Ba) Deposits in Northeast Yunnan[J]. Acta Geoscientia Sinica,1997,18(1):41-52.
[8] 李连举,刘洪滔,刘继顺. 滇东北铅、锌、银矿床矿源层问题探讨[J]. 有色金属矿产与勘查,1999,8(6):333-339. Li Lianju, Liu Hongtao, Liu Jishun. A Discussion on the Source Bed of Pb-Zn-Ag Deposits in Northeast Yunnan[J]. Geological Exploration for Non-Ferrous Metals,1999,8(6):333-339.
[9] 李才先. 滇东北铅锌(银)成矿规律[J]. 云南地质,2005,24(3):275-281. Li Caixian. The Metallogenetic Rule of Pb-Zn Deposits in Northeast Yunnan[J]. Yunnan Geology,2005,24(3):275-281.
[10] 杨宁,薛步高.滇东北铅锌(银)矿矿集区成矿规律研究[J].云南地质,2012,31(1):1-11. Yang Ning, Xue Bugao. A Study on the Metallogenetic Rule of Pb-Zn Deposit Concentration Area in Northeast Yunnan[J]. Yunnan Geology, 2012, 31(1):1-11.
[11] 张荣伟,刘星,贺胜辉,等.云南滇东北灯影组铅锌矿床地质特征及成矿规律研究[J].河南科学,2013,31(3):348-352. Zhang Rongwei, Liu Xing, He Shenghui, et al. Geological Features and Metallogenic Regularity Research of Dengying Group Lead-Zinc Deposits in Northeast Yunnan[J]. Henan Science,2013,31(3):348-352.
[12] 唐忠,李文昌,王长兵,等. 滇东北Pb-Zn-(Ag)多金属矿床找矿突破关键基础地质问题[J].吉林大学学报(地球科学版),2016,46(3):722-735. Tang Zhong, Li Wenchang, Wang Changbing, et al. Critical Geological Issues About Ore-Prospecting Breakthrough of Pb-Zn-(Ag) Polymetallic Deposit in Northeast Yunnan[J]. Journal of Jilin University(Earth Science Edition), 2016,46(3):722-735.
[13] 罗家贤.东坪铅锌矿构控特征及矿床成因[J].云南地质,2003,22(3):304-312. Luo Jiaxian. Characteristics of Ore-Controlling-Structure and Genesisof Dongping Lead-Zinc Deposit[J]. Yunnan Geology,2003,22(3):304-312.
[14] 韩润生,胡煜昭,王学琨,等.滇东北富锗银铅锌多金属矿集区矿床模型[J].地质学报,2012,86(2):280-294. Han Runsheng,Hu Yuzhao,Wang Xuekun,et al. Mineralization Model of Rich Ge-Ag-Bearing Zn-Pb Polymetallic Deposit Concentrated District in Northeastern Yunnan,China[J]. ActaMineralogica Sinica,2012,86(2):280-294.
[15] 张云新,吴越,田广,等.云南乐红铅锌矿床成矿时代与成矿物质来源:Rb-Sr和S同位素制约[J].矿物学报,2014,34(3):305-311. Zhang Yunxin,Wu Yue,Tian Guang,et al. Mineralization Age and Source of Ore-Forming Material at Lehong Pb-Zn Deposit,Yunnan Province:Constraints from Rb-Sr and S Isotopes System[J]. Acta Mineralogica Sinica,2014,34(3):305-311.
[16] 柳贺昌,林文达.滇东北铅锌银矿产规律研究[M].昆明:云南大学出版社,1999:1-148. Liu Hechang,Lin Wenda.Study on Pb-Zn-Ag Ore Deposits Law in Northeast Yunnan Province[M]. Kunming:Yunnan University Press,1999:1-468.
[17] Claypool G E, Holser W T, Kaplan I R, et al. The Age Curves of Sulfur and Oxygen Isotopes in Marine Sulfate and Their Mutual Interpretation[J]. Chemical Geology, 1980, 28:199-260.
[18] Ohmoto H, Rye R O. Isotopes of Sulfur and Carbon[C]//Barnes H L. Geochemistry of Hydrothermal Ore Deposits. New York:Wiley-Interscience, 1979:509-567.
[19] Zartman R E,Doe B R. Plumbotectonics:The Model[J]. Tectonophysics,1981,75:135-162.
[20] 吴越.川滇黔地区MVT铅锌矿床大规模成矿作用的时代与机制[D].北京:中国地质大学, 2013. Wu Yue. The Age and Ore-Forming Process of MVT Deposits in the Boundary Area of Sichuan-Yunnan-Guizhou Provinces,Southwest China[D]. Beijing:China University of Geosciences,2013.
[21] 张长青,叶天竺,吴越,等.Si/Ca界面对铅锌矿床定位的控制作用及其找矿意义[J].矿床地质,2012,31(3):405-416. Zhang Changqing, Ye Tianzhu, Wu Yue, et al. Discussion on Controlling Role of Si-Ca Boundary in Locating Pb-Zn Deposits and Its Prospecting Signi-Ficance[J]. Mineral Deposits,2012,31(3):405-416.

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