Volume 28 Issue 3
Jun.  2022
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Article Navigation >  Journal of Geomechanics  > 2022  >  28(3): 464-479
WANG Xiaohu, GUO Tao, LI Xiaozhuang, et al., 2022. A study on the geochemical characteristics and metallogenesis of the Lanmugou gold deposit in the South Qinling Belt, Shaanxi, China. Journal of Geomechanics, 28 (3): 464-479. DOI: 10.12090/j.issn.1006-6616.2021002
Citation: WANG Xiaohu, GUO Tao, LI Xiaozhuang, et al., 2022. A study on the geochemical characteristics and metallogenesis of the Lanmugou gold deposit in the South Qinling Belt, Shaanxi, China. Journal of Geomechanics, 28 (3): 464-479. DOI: 10.12090/j.issn.1006-6616.2021002
shu

A study on the geochemical characteristics and metallogenesis of the Lanmugou gold deposit in the South Qinling Belt, Shaanxi, China

doi: 10.12090/j.issn.1006-6616.2021002
  • 1.

    Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China

  • 2.

    Key Laboratory of Paleomagnetism and Tectonic Reconstruction, Ministry of Natural Resources, Beijing 100081, China

  • 3.

    Shaanxi Geology and Mining First Geological Team Co. Ltd, Ankang 725099, Shaanxi, China

Funds:

the National Key Research and Development Program of China 2021YFC2901805

the Geological Survey Project of China Geological Survey 12120114014201

More Information
  • Received: 2021-01-06
  • Revised: 2022-05-01
    Abstract
  • The Lanmugou gold deposit is located in Xunyang County, Shaanxi Province, produced in the Indosinian Shiquan-Shenhe thrust nappe of the South Qinling, and controlled by the Heihumiao brittle-ductile shear zone. In this paper, via the analysis of the mineralization background, ore-controlling structure features and geochemical characteristics of the deposit, the preliminary conclusions on the geological characteristics and metallogenesis of the Lanmugou gold deposit have been obtained. Co content of pyrite in strata varies from 67.6×10-6 to 208×10-6, Ni content from 108×10-6 to 585×10-6, and the total amount of rare earth elements from 2.16×10-6 to 22.9×10-6. Simultaneously, Co content in hydrothermal pyrite varies from 317×10-6 to 751×10-6, Ni content from 82.8×10-6 to 304×10-6, and the total amount of rare earth elements from 4.04×10-6 to 51.74×10-6. δ34S value in hydrothermal pyrite ranges from 9.9‰ to 12.1‰, with the average value of 11.27‰. 206Pb/204Pb value of hydrothermal pyrite ranges from 18.560 to 20.206, 207Pb/204Pb value from 15.668 to 15.708, 208Pb/204Pb value from 38.257 to 38.860; 206Pb/204Pb value of pyrite in the strata ranges from 18.502 to 20.086, 207Pb/204Pb value from 15.644 to 15.788 and 208Pb/204Pb value from 38.475 to 38.907. δ18OV-SMOW value of quartz in ore ranges from 13.5‰ to 15.9‰, with the average value of 14.7‰, and the δDV-SMOW value ranges from -77.8‰ to -71.3‰, with the average value of -74.55‰. Re-Os isochron age of pyrite in the ore is 202±12 Ma. From the comprehensive studies, it is concluded that the source of ore-forming materials of the Lanmugou gold deposit is from the interlayer of volcanic rocks in strata, and the ore-forming fluids are multiple-sourced (basically metamorphic water derived from interlayer water, atmospheric precipitation). The inference of metallogenesis is that the ore-forming hydrothermal fluids filled the lamellae of brittle-ductile shear zone and the minerals were precipitated and enriched in the extension stage after the collision of the Qinling orogenic belt at the end of the late Triassic-early Jurassic. The metallogenic characteristics show that the Lanmugou deposit is an orogenic gold deposit.

     

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    • References(87)
  • CHEN B L, DONG F X, LI Z J, 1999. Ore-forming model of ductile shear zone type gold deposits[J]. Geological Review, 45(2): 186-192. (in Chinese with English abstract)
    CHEN Y L, YANG Z F, ZHAO Z D, 2005. Isotopic Geochronology and Geochemistry[M]. Beijing: Geological Publishing House: 1-441. (in Chinese)
    DONG Y P, ZHANG G W, NEUBAUER F, et al., 2011. Tectonic evolution of the Qinling orogen, China: Review and synthesis[J]. Journal of Asian Earth Sciences, 41(3): 213-237. doi: 10.1016/j.jseaes.2011.03.002
    DONG Y P, SANTOSH M, 2016. Tectonic architecture and multiple orogeny of the Qinling orogenic belt, Central China[J]. Gondwana Research, 29(1): 1-40. doi: 10.1016/j.gr.2015.06.009
    DU A D, HE H L, YIN N W, et al., 1994. A study on the Rhenium-Osmium geochro-nometry of molybdenites[J]. Acta Geologica Sinica, 68(4): 339-347. (in Chinese with English abstract)
    DU A D, ZHAO D M, WANG S X, et al., 2001. Precise Re-Os dating for molybdenite by ID-NTIMS with carius tube sample preparation[J]. Rock and Mineral Analysis, 20(4): 247-252. (in Chinese with English abstract)
    FAN P H, 2015. Ore-controlling structure characteristics of brittle-ductile shear zone and metallogenic regualarity of gold in Jindoupo Hanyin County-Liushuping Hanbin area, South Qinling, China[D]. Xi'an: Chang'an University: 1-119. (in Chinese with English abstract)
    FENG M S, YANG J D, 1994. Basic characteristic of ductile nappe structure and its ore-contral of gold deposit in North Ankang[J]. Geology of Shaanxi, 12(1): 17-26. (in Chinese with English abstract)
    GAO H X, LI W B, XU F, et al., 2016. The research of gold metallogeny and prediction of mineral resources in Shiquan-Xunyang area, Shaanxi[R]. Xi'an: Shaanxi Province Geological Surbey Institute. (in Chinese)
    GAO Y N, YANG X K, YANG L W, et al., 2016. Study on ore-controlling factors and mine exploration proposal of the gold ore field in North Hanyin, South Qinling[J]. Journal of Geomechanics, 22(2): 245-255. (in Chinese with English abstract)
    HAN K, YANG X K, GAO Y N, et al., 2015. S2 surface characteristics of Huanglong gold mine in Hanyin and its controlling effect on gold deposits[J]. Acta Mineralogica Sinica, 35(S1): 857-858. (in Chinese)
    HAN K, YANG X K, ZHANG J, et al., 2017. Characteristics of brittle-ductile shear zone and its control effect on gold mineralization in the Huanglong gold deposit, Hanyin, south Shaanxi province[J]. Gold Science and Technology, 25(5): 18-29. (in Chinese with English abstract)
    HAN K, YANG X K, AN L, et al., 2018. S2 foliation characteristics of brittle-ductile shear zone in the Huanglong gold deposit, Hanyin, South Qinling and its effect on mineralization[J]. Northwestern Geology, 51(3): 171-184. (in Chinese with English abstract)
    HAN K, YANG X K, HE H J, et al., 2020. Characteristics of ore-controlling brittle-ductile shear zone and ages of deformation and mineralization in the Northern Hanyin gold field, South Qinling, China[J]. Geotectonica et Metallogenia, 44(5): 801-818. (in Chinese with English abstract)
    HAN Y W, MA Z D, ZHANG H F, et al., 2003. Geochemistry[M]. Beijing: Geological Publishing House: 1-369. (in Chinese)
    JIA F Y, ZHAO Y H, YANG B Z, 2016. Application of the trinity prospecting model in gold exploration: An example from the Bawanggou gold deposit in Hanyin, Shaanxi[J]. Journal of Geomechanics, 22(2): 185-198. (in Chinese with English abstract)
    JIAO J R, 2013. The ore control condition and prospecting direction of Lanmugou Au deposit in Xunyang, Shaanxi[J]. Yunnan Geology, 32(1): 14-17. (in Chinese with English abstract)
    LI F R, HOU J F, YANG H, et al., 2009. Geological and geochemical characteristics and gold enrichment regularity of the Yangpingwan gold deposit in Shiquan, Shaanxi Province[J]. Geology in China, 36(1): 174-183. (in Chinese with English abstract)
    LI H M, 1997. The geological characteristic of gold deposit belt in the Northern Shiquan-Hanyin, Shaanxi[J]. Geology of Shaanxi, 15(2): 48-57. (in Chinese with English abstract)
    LI S G, SUN W D, ZHANG G W, et al., 1996. Geochronology and geochemistry of the Heigouxia metavolcanic rocks in the Mianlue tectonic belt, South Qinling: evidence from the Paleozoic ocean basin and its closure age[J]. Science in China (Series D), 26(3): 223-230. (in Chinese)
    LIU B J, XU X S, 1994. Atlas of the lithofacies and palaeogeography of South China[M]. Beijing: Science Press: 1-188.
    LIU G, 2020. Research progress of interaction of fluid with rock in ductile shear zone[J]. Journal of Geomechanics, 26(2): 175-186. (in Chinese with English abstract)
    LIU S W, 2006. Research on episodic fluid diagenesis-mineralization in Paleozoic basins of southern Qinling region[D]. Xi'an: Chang'an University: 1-129. (in Chinese with English abstract)
    LU Y F, 2004. GeoKit-A geochemical toolkit for Microsoft excel[J]. Geochimica, 33(5): 459-464. (in Chinese with English abstract)
    OHMOTO H, RYE R O, 1997. Isotopes of sulfur and carbon[M]//BERNES H L. Geochemistry of hydrothermal ore deposits. 2nd ed. New York: John Wiley and Sons: 509-567.
    SHA Y Z, WANG J C, KANG Q Q, et al., 2013. Analysis on geological characteristics and ore-controlling factors of Silurian gold mine in South Qinling the Xunyang Lanmugou area[J]. Northwestern Geology, 46(2): 99-110. (in Chinese with English abstract)
    TAYLOR H P, 1997. Oxygen and hydrogen isotope relationships in hydrothermal mineral deposits[M]//BARNES H L, Geochemistry of Hydrothermal Ore Deposits: 229-259.
    WANG M L, 2007. The feature of ductil shear zone and ore-searching criteria of Yangpingwan Gold deposit in Shiquan county[J]. Northwestern Geology, 40(S1): 30-36. (in Chinese with English abstract)
    WANG P, LIU J S, LI L B, 2018. Geology, ore-controlling factors and prospecting direction of gold deposits in black rock series in Yangpingguan of Shiquan county and Lanmugou of Xunyang County, Shaanxi province[J]. Geology of Shaanxi, 36(2): 19-26. (in Chinese with English abstract)
    WANG R T, TAN X H, LI F R, et al., 2013. Metallogenic model and exploration pattern of Yangpingwan gold deposit, Shiquan County, Shaanxi Province, China[J]. Northwestern Geology, 46(2): 93-98. (in Chinese with English abstract)
    WANG Y T, MAO J W, LI X F, et al., 2004. Gold mineralization related to the shear zone[J]. Earth Science Frontiers, 11(2): 393-400. (in Chinese with English abstract)
    XU T, 2016. Component features and tectonic evolution of Mianlue tectonic zone in Kangxian-Lueyang Area, south margin of Qinling orogen[D]. Xi'an: Chang'an University: 1-136. (in Chinese with English abstract)
    YANG H Y, WANG X, YANG X K, et al., 2015. The characteristics of new-born face of Changgou gold deposit in Hanyin County, South Qinling and its relationship with gold mineralization[J]. Acta Mineralogica Sinica, 35(S1): 957-958. (in Chinese)
    YANG L W, YANG X K, HAN K, et al., 2018. Fluid inclusions of the Changgou gold deposit in North Hanyin, South Qinling[J]. Northwestern Geology, 51(2): 178-185. (in Chinese with English abstract)
    YANG X K, HAN K, WU X, et al., 2016. The structural deformation and tectonic evolution of intra-continental orogeny in South Qinling orogen: Structural deformation analysis of the northern part of Shiquan-Hanyin belt in the late Indosinian-Yanshanian period[J]. Earth Science Frontiers, 23(4): 72-80. (in Chinese with English abstract)
    YANG Z J, WANG Z S, LIU D R, et al., 1990. 1∶200000 geological map of Ankang[Z]. Bureau of Geology and Mineral Resources, Shaanxi Province. (in Chinese)
    ZARTMAN R E, DOE B R, 1981. Plumbotectonics-the mode[J]. Tectonophysics, 75(1-2): 135-162. doi: 10.1016/0040-1951(81)90213-4
    ZHANG G W, ZHANG Z Q, DONG Y P, 1995a. Nature of main tectono-lithostratigraphic units of the Qinling orogen: Implications for the tectonic evolution[J]. Acta Petrologica Sinica, 11(2): 101-114. (in Chinese with English abstract)
    ZHANG G W, MENG Q R, LAI S C, 1995b. The structure of Qinling orogenic belt[J]. Science in China (Series B), 38(11): 1379-1394.
    ZHANG G W, DONG Y P, YAO A P, 1997. The crustal compositions, structures and tectonic evolution of the Qinling orogenic belt[J]. Geology of Shaanxi, 15(2): 1-14. (in Chinese with English abstract)
    ZHANG G W, ZHANG B R, YUAN X C, et al., 2001. Qinling orogenic beit and continental dynamics[M]. Beijing: Science Press: 1-855. (in Chinese)
    ZHANG G W, GUO A L, DONG Y P, et al., 2019. Rethinking of the Qinling orogen[J]. Journal of Geomechanics, 25(5): 746-768. (in Chinese with English abstract)
    ZHANG K, 2012. Ore-controlling rules and prospecting indicator of Silurian system gold field structure in North Hanyin, South Qinlin[D]. Xi'an: Chang'an University: 1-88. (in Chinese with English abstract)
    ZHANG K, YANG X K, YU H B, et al., 2020. Analysis of ore-controlling structure in the Changgou gold deposit of the northern Hanyin gold orefield, southern Qinling Mountains[J]. Journal of Geomechanics, 26(3): 363-375. (in Chinese with English abstract)
    ZHU B Q, LI X H, DAI T M, et al., 1998. Theory and application of isotope system in earth science[M]. Beijing: Science Press: 1-330. (in Chinese)
    ZHU H P, FU J R, 2004. The Mesozoic and Cenozoic thrust nappe tectonic events and the formation of gold deposits in South Qinling[J]. Earth Science Frontiers, 11(1): 168. (in Chinese)
    陈柏林, 董法先, 李中坚, 1999. 韧性剪切带型金矿成矿模式[J]. 地质论评, 45(2): 186-192. doi: 10.3321/j.issn:0371-5736.1999.02.012
    陈岳龙, 杨忠芳, 赵志丹, 2005. 同位素地质年代学与地球化学[M]. 北京: 地质出版社: 1-441.
    杜安道, 何红蓼, 殷宁万, 等, 1994. 辉钼矿的铼-锇同位素地质年龄测定方法研究[J]. 地质学报, 68(4): 339-347. doi: 10.3321/j.issn:0001-5717.1994.04.005
    杜安道, 赵敦敏, 王淑贤, 等, 2001. Carius管溶样-负离子热表面电离质谱准确测定辉钼矿铼-锇同位素地质年龄[J]. 岩矿测试, 20(4): 247-252. doi: 10.3969/j.issn.0254-5357.2001.04.002
    樊培贺, 2015. 南秦岭汉阴县金斗坡-汉滨区柳树坪脆-韧性剪切带控矿构造特征与金矿成矿富集规律[D]. 西安: 长安大学: 1-119.
    冯明伸, 杨建东, 1994. 安康地区北部韧性推覆构造基本特征及对金矿成矿控制作用[J]. 陕西地质, 12(1): 17-26. https://www.cnki.com.cn/Article/CJFDTOTAL-SXDY199401002.htm
    高怀雄, 李卫波, 许锋, 等, 2016. 陕西石泉—旬阳金矿成矿规律研究与矿产资源预测[R]. 西安: 陕西省地质调查院.
    高雅宁, 杨兴科, 杨龙伟, 等, 2016. 南秦岭汉阴北部金矿田控矿要素研究及找矿方向建议[J]. 地质力学学报, 22(2): 245-255. doi: 10.3969/j.issn.1006-6616.2016.02.006
    韩珂, 杨兴科, 高雅宁, 等, 2015. 汉阴黄龙金矿S2面理特征及其对金矿的控制作用[J]. 矿物学报, 35(S1): 857-858. https://www.cnki.com.cn/Article/CJFDTOTAL-KWXB2015S1629.htm
    韩珂, 杨兴科, 张健, 等, 2017. 陕南汉阴黄龙金矿脆-韧性剪切带特征及其对成矿的控制作用[J]. 黄金科学技术, 25(5): 18-29. https://www.cnki.com.cn/Article/CJFDTOTAL-HJKJ201705003.htm
    韩珂, 杨兴科, 安乐, 等, 2018. 南秦岭汉阴黄龙金矿脆-韧性剪切带中S2面理特征及其对成矿的作用[J]. 西北地质, 51(3): 171-184. doi: 10.3969/j.issn.1009-6248.2018.03.016
    韩珂, 杨兴科, 何虎军, 等, 2020. 南秦岭汉阴北部金矿田脆-韧性剪切带控矿特征及构造变形-成矿年代学研究[J]. 大地构造与成矿学, 44(5): 801-818. https://www.cnki.com.cn/Article/CJFDTOTAL-DGYK202005001.htm
    韩吟文, 马振东, 张宏飞, 等, 2003. 地球化学[M]. 北京: 地质出版社: 1-369.
    贾凤仪, 赵永辉, 杨本昭, 2016. "三位一体"找矿模型在金矿勘查中的应用: 以陕西省汉阴县坝王沟金矿为例[J]. 地质力学学报, 22(2): 185-198. doi: 10.3969/j.issn.1006-6616.2016.02.001
    焦金荣, 2013. 陕西旬阳烂木沟金矿控矿条件与找矿方向[J]. 云南地质, 32(1): 14-17. doi: 10.3969/j.issn.1004-1885.2013.01.004
    李福让, 侯俊富, 杨弘, 等, 2009. 陕西石泉县羊坪湾金矿床地质-地球化学特征及金的富集规律[J]. 中国地质, 36(1): 174-183. doi: 10.3969/j.issn.1000-3657.2009.01.016
    李会民, 1997. 石泉-汉阴北部金矿带地质特征[J]. 陕西地质, 15(2): 48-57. https://www.cnki.com.cn/Article/CJFDTOTAL-SXDY199702005.htm
    李曙光, 孙卫东, 张国伟, 等, 1996. 南秦岭勉略构造带黑沟峡变质火山岩的年代学和地球化学: 古生代洋盆及其闭合时代的证据[J]. 中国科学(D辑), 26(3): 223-230. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK199603004.htm
    刘宝珺, 许效松, 1994. 中国南方岩相古地理图集[M]. 北京: 科学出版社: 1-188.
    刘贵, 2020. 韧性剪切带内的流体与岩石相互作用研究进展[J]. 地质力学学报, 26(2): 175-186. doi: 10.12090/j.issn.1006-6616.2020.26.02.017
    刘淑文, 2006. 南秦岭古生代盆地演化中幕式流体成岩成矿作用研究[D]. 西安: 长安大学: 1-129.
    路远发, 2004. GeoKit: 一个用VBA构建的地球化学工具软件包[J]. 地球化学, 33(5): 459-464. doi: 10.3321/j.issn:0379-1726.2004.05.004
    沙亚洲, 王菊婵, 康清清, 等, 2013. 南秦岭旬阳烂木沟地区下志留统金矿地质特征及控矿因素浅析[J]. 西北地质, 46(2): 99-110. doi: 10.3969/j.issn.1009-6248.2013.02.013
    王民良, 2007. 石泉羊坪湾金矿床韧性剪切带特征及找矿标志[J]. 西北地质, 40(S1): 30-36.
    王鹏, 刘军胜, 李龙斌, 2018. 陕西石泉羊坪湾—旬阳烂木沟一带黑色岩系金矿地质特征及找矿方向[J]. 陕西地质, 36(2): 19-26. doi: 10.3969/j.issn.1001-6996.2018.02.004
    王瑞廷, 谭兴华, 李福让, 等, 2013. 石泉县羊坪湾金矿床成矿模式及其找矿模型[J]. 西北地质, 46(2): 93-98. doi: 10.3969/j.issn.1009-6248.2013.02.012
    王义天, 毛景文, 李晓峰, 等, 2004. 与剪切带相关的金成矿作用[J]. 地学前缘, 11(2): 393-400. doi: 10.3321/j.issn:1005-2321.2004.02.009
    徐通, 2016. 秦岭南缘勉略构造带康县-略阳地区组成特征及构造演化研究[D]. 西安: 长安大学: 1-136.
    杨宏宇, 王新, 杨兴科, 等, 2015. 南秦岭汉阴县长沟金矿区新生面理特征及与金矿成矿关系[J]. 矿物学报, 35(S1): 957-958. https://www.cnki.com.cn/Article/CJFDTOTAL-KWXB2015S1695.htm
    杨龙伟, 杨兴科, 韩珂, 等, 2018. 南秦岭汉阴北部长沟金矿床流体包裹体特征[J]. 西北地质, 51(2): 178-185. doi: 10.3969/j.issn.1009-6248.2018.02.024
    杨兴科, 韩珂, 吴旭, 等, 2016. 南秦岭陆内造山构造变形特征与演化: 石泉—汉阴北部一带晚印支—燕山期构造变形分析[J]. 地学前缘, 23(4): 72-80. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201604008.htm
    杨增济, 王忠世, 刘德荣, 等, 1990. 1∶20万地质图(安康幅)[Z]. 陕西省地质矿产局.
    张国伟, 张宗清, 董云鹏, 1995a. 秦岭造山带主要构造岩石地层单元的构造性质及其大地构造意义[J]. 岩石学报, 11(2): 101-114. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB199502000.htm
    张国伟, 孟庆任, 赖绍聪, 1995b. 秦岭造山带的结构构造[J]. 中国科学(B辑), 25(9): 994-1003. https://www.cnki.com.cn/Article/CJFDTOTAL-JBXK199509014.htm
    张国伟, 董云鹏, 姚安平, 1997. 秦岭造山带基本组成与结构及其构造演化[J]. 陕西地质, 15(2): 1-14. https://www.cnki.com.cn/Article/CJFDTOTAL-SXDY199702000.htm
    张国伟, 张本仁, 袁学诚, 等, 2001. 秦岭造山带与大陆动力学[M]. 北京: 科学出版社: 1-855.
    张国伟, 郭安林, 董云鹏, 等, 2019. 关于秦岭造山带[J]. 地质力学学报, 25(5): 746-768. doi: 10.12090/j.issn.1006-6616.2019.25.05.064
    张康, 2012. 南秦岭汉阴北部志留系金矿田构造控矿规律及找矿标志研究[D]. 西安: 长安大学: 1-88.
    张康, 杨兴科, 于恒彬, 等, 2020. 南秦岭汉阴北部金矿田长沟金矿区控矿构造解析[J]. 地质力学学报, 26(3): 363-375. doi: 10.12090/j.issn.1006-6616.2020.26.03.032
    朱炳泉, 李献华, 戴橦谟, 等, 1998. 地球科学中同位素体系理论与应用: 兼论中国大陆壳幔演化[M]. 北京: 科学出版社: 1-330.
    朱华平, 付静茹, 2004. 南秦岭中新生代逆冲推覆构造事件与金矿的形成[J]. 地学前缘, 11(1): 168. doi: 10.3321/j.issn:1005-2321.2004.01.035
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