吉林大学学报(地球科学版) ›› 2020, Vol. 50 ›› Issue (5): 1570-1581.doi: 10.13278/j.cnki.jjuese.20190289

• 整装勘查区矿床成因与成矿作用研究专辑 • 上一篇    下一篇

胶东谢家沟金矿床蚀变钾长石40Ar-39Ar年龄及地质意义

杜泽忠1, 程志中1, 姚晓峰1, 于晓飞1, 孙海瑞1, 鲍兴隆2, 李少华2   

  1. 1. 中国地质调查局发展研究中心/自然资源部矿产勘查技术指导中心, 北京 100037;
    2. 招金集团金亭岭矿业公司, 山东 招远 265400
  • 收稿日期:2019-12-19 出版日期:2020-09-26 发布日期:2020-09-29
  • 作者简介:杜泽忠(1986-),男,高级工程师,博士,主要从事矿床学和找矿预测方面的研究,E-mail:27793009@qq.com
  • 基金资助:
    国家重点研发计划项目（2017YFC0601506）；中国地质调查局项目（DD20160050，DD20190159）

40Ar-39Ar Age of Altered Potash Feldspar of Xiejiagou Gold Deposit in Jiaodong and Its Geological Significance

Du Zezhong1, Cheng Zhizhong1, Yao Xiaofeng1, Yu Xiaofei1, Sun Hairui1, Bao Xinglong2, Li Shaohua2   

  1. 1. Development and Research Center, China Geological Survey/Mineral Exploration Technical Guidance Center, Ministry of Natural Resources, Beijing 100037, China;
    2. Jintingling Mining Industry Zhaojin Co. LTD., Zhaoyuan 265400, Shandong, China
  • Received:2019-12-19 Online:2020-09-26 Published:2020-09-29
  • Supported by:
    Supported by National Key R&D Program of China (2017YFC0601506) and Project of China Geological Survey (DD20160050, DD20190159)

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摘要： 谢家沟金矿床位于胶西北焦家断裂带和招平断裂带之间。在系统观察坑道各类蚀变现象的基础上，发现围岩蚀变主要有钾长石化、硅化、黄铁矿化、绢云母化，其次可见绿泥石化和碳酸盐化等；基于蚀变的叠加和穿插关系查明了不同阶段的主要热液作用记录，从早到晚依次为钾长石化、黄铁绢英岩化、陡立石英硫化物细脉；蚀变具有明显的空间分带现象，从中心到两侧分别为陡立石英硫化物细脉带、黄铁绢英岩化带、钾长石化带。本次研究对蚀变钾长石开展了40Ar-39Ar精细测年工作，获得的坪年龄为（112.79±0.62）Ma（MSWD=5.76），与等时线年龄（（115.56±1.72）Ma（MSWD=4.59））一致，限定了谢家沟金矿床的钾化蚀变年龄，与胶东地区获得的金成矿事件年龄相近，说明谢家沟金矿床与胶东地区金矿床是在同一成矿-热事件下形成的。结合区域岩浆演化特征，胶东地区在郭家岭岩体形成之后、在（120±10）Ma还存在一期与金成矿关系密切的岩浆活动。

关键词: 谢家沟金矿, 蚀变钾长石, 40Ar-39Ar年龄

Abstract: Xiejiagou gold deposit is located between Jiaojia fault zone and Zhaoyuan-Pingdu fault zone in southwest Jiaodong. Based on the systematic observation of various alteration phenomena in the tunnels, we found that the wall rock alteration of the deposit includes mainly potash feldspathization, silicification, pyrite mineralization, and sericitization, followed by chloritization and carbonation, and the main hydrothermal effects at different stages were determined based on the superposition and interpenetration of alteration. From early to late, it is potash feldspathization, pyrite-sericite-quartz, and steep quartz sulfide veinlet;from the center to both sides,the alteration is steep quartz sulfide veinlet, pyrite-sericite-quartz,and potash feldspathization. The 40Ar-39Ar fine dating of altered potassium feldspar shows that the obtained plateau age is (112.79±0.62) Ma (MSWD=5.76), and the isochronous age is ((115.56±1.72) Ma (MSWD=4.59)). The two ages are almost the same, which indicates that the formation of Xiejiagou gold deposit is the same metallogenic thermal event as the gold mineralization of Jiaodong area. Combining with the regional magmatic evolution characteristics, after the formation of Guojialing rock mass in Jiaodong area, there was still a phase of magmatic activity that is closely related to the gold mineralization at (120±10) Ma.

Key words: Xiejiagou gold deposit, altered potash feldspar, 40Ar-39Ar age

中图分类号: 

  • P61
[1] 李洪奎,耿科,禚传源,等.胶东金矿构造环境与成矿作用[M].北京:地质出版社,2016. Li Hongkui, Geng Ke, Zhuo Chuanyuan, et al. Tectonic Environment and Mineralization of Gold Deposits in Eastern Shandong[M]. Beijing:Geological Publishing House, 2016.
[2] 宋明春,李三忠,伊丕厚,等.中国胶东焦家式金矿类型及其成矿理论[J].吉林大学学报(地球科学版),2014,44(1):87-104. Song Mingchun,Li Sanzhong,Yi Pihou,et al. Classification and Metallogenic Theory of the Jiaojia-Style Gold Deposit in Jiaodong Peninsula,China[J]. Journal of Jilin University(Earth Science Edition),2014,44(1):87-104.
[3] 韦延光,王建国,邓军,等.山东谢家沟金矿流体包裹体研究及其地质意义[J].现代地质,2005,19(2):224-230. Wei Yanguang,Wang Jianguo, Deng Jun, et al. Study on the Fluid Inclusions from Xiejiagou Gold Deposit in Shandong and Its Geological Significance[J]. Geoscience, 2005, 19(2):224-230.
[4] 邓军,王建国,韦延光,等.山东谢家沟金矿床矿石与金矿物特征[J].地球科学:中国地质大学学报,2007,32(3):373-380. Deng Jun, Wang Jianguo, Wei Yanguang, et al. Ores and Gold-Bearing Characteristics in Xiejiagou Gold Deposit, Shandong Province[J]. Earth Science:Journal of China University of Geosciences, 2007, 32(3):373-380.
[5] 王建国,刘洪臣,邓军,等.胶东谢家沟金矿稀土元素特征及其成矿意义[J].地质学报,2009,83(10):1497-1504. Wang Jianguo, Liu Hongchen, Deng Jun, et al. REE Characteristics of the Xiejiagou Gold Deposit, Eastern Shandong Province and Its Significance to Mineralizations[J]. Acta Geologica Sinica, 2009, 83(10):1497-1504.
[6] 丁东胜,陈蕾,巩恩普,等.山东谢家沟金矿床流体包裹体研究及成矿机制的探讨[J].矿床地质,2017,36(2):345-363. Ding Dongsheng, Chen Lei, Gong Enpu, et al. Fluid Inclusion Study and Metallogenic Mechanism of Xiejiagou Gold Deposit in Shandong Province[J]. Mineral Deposits, 2017, 36(2):345-363.
[7] 辛洪波,邓军,曲晓明,等.胶东谢家沟金矿床地质特征与成矿时代研究[J].黄金科学技术,2006,14(3):1-6. Xin Hongbo, Deng Jun, Qu Xiaoming, et al. The Research on the Geological Feature and Mineralization Age of Xiejiagou Gold Deposit in Jiaodong Area[J]. Gold Science & Technology, 2006, 14(3):1-6.
[8] Ma W D, Fan H R, Liu X, et al. Hydrothermal Fluid Evolution of the Jintingling Gold Deposit in the Jiaodong Peninsula, China:Constraints from U-Pb Age, CL Imaging, Fluid Inclusion and Stable Isotope[J]. Journal of Asian Earth Sciences, 2018,160:287-303.
[9] 杨立强,邓军,王中亮,等.胶东中生代金成矿系统[J].岩石学报,2014,30(9):2447-2467. Yang Liqiang, Deng Jun, Wang Zhongliang, et al. Mesozoic Gold Metallogenic System of the Jiaodong Gold Province, Eastern China[J]. Acta Petrologica Sinica, 2014, 30(9):2447-2467.
[10] 范宏瑞,胡芳芳,杨进辉,等.胶东中生代构造体制转折过程中流体演化和金的大规模成矿[J].岩石学报,2005,21(25):1317-1328. Fan Hongrui, Hu Fangfang, Yang Jinhui, et al. Fluild Evolution and Large-Scale Gold Metallogeny During Mesozoic Tectonic in the Eastern Shandong Province[J]. Acta Petrologica Sinica, 2005, 21(25):1317-1328.
[11] 陆丽娜,范宏瑞,胡芳芳,等.胶西北郭家岭花岗闪长岩侵位深度:来自角闪石温压计和流体包裹体的证据[J].岩石学报,2010,27(5):1521-1532. Lu Lina, Fan Hongrui, Hu Fangfang, et al. Emplacement Depth of the Guojialing Granodiorites from the Northwestern Jiaodong Peninsula, Eastern China:Evidences from Hornblende Thermobarometry and Fluid Inclusions[J]. Acta Petrologica Sinica, 2010, 27(5):1521-1532.
[12] Wang L G, Qiu Y M, McNaughton N J, et al. Constraints on Crustal Evolution and Gold Metallogeny in the Northwestern Jiaodong Peninsula, China, from SHRIMP U-Pb Zircon Studies of Granitoids[J]. Ore Geology Reviews, 1998, 13:275-291.
[13] Hou M L, Jiang Y H, Jiang S Y, et al. Contrasting Origins of Late Mesozoic Adakitic Granitoids from the Nnorthwestern Jiaodong Peninsula, East China:Implications for Crustal Thickening to Delamination[J]. Geological Magazine, 2007, 144(4):619-631.
[14] Zhang J, Zhao Z F, Zheng Y F, et al. Postcollisional Magmatism:Geochemical Constraints on the Petrogenesis of Mesozoic Ggranitoids in the Sulu Orogen, China[J]. Lithos, 2010, 119:512-536.
[15] Jiang N, Chen J Z, Guo J H, et al. In Situ Zircon U-Pb,Oxygen and Hafnium Isotopic Compositions of Jurassic Ggranites from the North China Craton:Evidence for Triassic Subduction of Continental Crust and Subsequent Metamorphism-Related 18O Depletion[J]. Lithos, 2012, 142/143:84-94.
[16] Ma L, Jiang S Y, Dai B Z, et al. Multiple Sources for the Origin of Late Jurassic Linglong Adakitic Granite in the Shandong Peninsula, Eeastern China:Zircon U-Pb Geochronological, Geochemical and Sr-Nd-Hf Isotopic Evidence[J]. Lithos, 2013, 162/163:251-263.
[17] 陈俊,孙丰月,王力,等.胶东招掖地区滦家河花岗岩锆石U-Pb年代学、岩石地球化学及其地质意义[J].世界地质,2015,34(2):283-295. Chen Jun,Sun Fengyue,Wang Li, et al. Zircon U-Pb Geochronology and Petrogeochemistry of Luanjiahe Granite in Jiaodong Region and Their Geological Significance[J]. Global Geology, 2015, 34(2):283-295.
[18] 杨进辉,朱美妃,刘伟,等.胶东地区郭家岭花岗闪长岩的地球化学特征及成因[J].岩石学报,2003,19(4):692-700. Yang Jinhui, Chu Meifei, Liu Wei, et al. Geochemistry and Petrogenesis of Guojialing Granodiorites from the Northwestern Jiaodong Peninsula, Eastern China[J]. Acta Petrologica Sinica, 2003, 19(4):692-700.
[19] 张良,刘跃,李瑞红,等.胶东大尹格庄金矿床铅同位素地球化学[J].岩石学报,2014,30(9):2468-2480. Zhang Liang, Liu Yue, Li Ruihong, et al. Lead Isotope Geochemistry of Dayingezhuang Gold Deposit, Jiaodong Peninsula, China[J]. Acta Petrologica Sinica, 2014, 30(9):2468-2480.
[20] Yang K F, Fan H R, Santosh M, et al. Reactivation of the Archean Lower Crust:Implications for Zircon Geochronology, Elemental and Sr-Nd-Hf Isotopic Geochemistry of Late Mesozoic Granitoids from Northwestern Jiaodong Terrane, the North China Craton[J]. Lithos, 2012, 146/147:112-127.
[21] 陈广俊,孙丰月,李玉春,等.胶东郭家岭花岗闪长岩U-Pb年代学、地球化学特征及地质意义[J].世界地质,2014,33(1):39-47. Chen Guangjun, Sun Fengyue, Li Yuchun, et al. U-Pb Dating,Geochemical Characteristics and Geological Significance of Guojialing Grandiorite in Jiaodong Peninsula[J]. Global Geology, 2014,33(1):39-47.
[22] Wang Z L, Yang L Q, Deng J, et al. Gold-Hosting High Ba-Sr Granitoids in the Xincheng Gold Deposit, Jiaodong Peninsula, East China:Petrogenesis and Tectonic Setting[J]. Journal of Asian Earth Sciences. doi:10.1016/j. jseaes. 2014.03.001.
[23] 刘跃,邓军,王中亮,等.胶西北新城金矿床二长花岗岩岩石地球化学、锆石U-Pb年龄及Lu-Hf同位素组成[J].岩石学报,2014,30(9):2559-2573. Liu Yue, Deng Jun, Wang Zhongliang, et al. Zircon U-Pb Age, Lu-Hf isotopes and Petrogeochemistry of the Monzogranites from Xincheng Gold Deposit, Northwestern Jiaodong Peninsula, China[J]. Acta Petrologica Sinica, 2014, 30(9):2559-2573.
[24] 杨宽,王建平,林进展,等.胶东半岛艾山岩体岩石地球化学特征及成因意义[J].地质与勘探,2012,48(4):693-703. Yang Kuan, Wang Jianping, Lin Jinzhan,et al. Petrogeochemical Characteristics and Genetic Significance of the Aishan Pluton in the Jiaodong Peninsula[J]. Geology and Exploration, 2012, 48(4):693-703.
[25] Goss S C, Wilde S A, Wu F Y, et al. The Age,Isotopic Signature and Significance of the Youngest Mesozoic Granitoids in the Jiaodong Terrane, Shandong Province, North China Craton[J]. Lithos, 2010, 120:309-326.
[26] 辛洪波.胶东谢家沟金矿与焦家金矿地质特征与成因对比[D].北京:中国地质大学(北京),2005:40-45. Xin Hongbo. The Contrast of Geological Feature and Genesis Between Xiejiagou Gold Deposit and Jiaojia Gold Deposit in Jiaodong Area[D]. Beijing:China University of Geosciences(Beijing), 2005:40-45.
[27] Steiger, R H, Jager E. Subcommission on Geochronology:Convention on the Use of Decay Constants in Geo-and Cosmo Chronology[J]. Earth Planet, Sci, Lett, 1977, 36:359-362.
[28] Parsons I, Brown W L, Smith J V. 40Ar/39Ar Thermo Chronology Using Alkali Feldspars:Real Thermal History or Mathematical Mirage of Microtexture[J]. Contributions to Mineralogy and Petrology, 1999, 136(1):92-110.
[29] Lovera O M,Grove M,Harrison T M. Systematic Analysis of K-Feldspar 40Ar/39Ar Step Heating Results II:Relevance of Laboratory Argon Diffusion Properties to Nature[J]. Geochimica et Cosmochimica Acta, 2002, 66(7):1237-1255.
[30] Perkins C, McDougall I, Claoué-Long J, et al. 40Ar/39Ar and U-Pb Geochronology of the Goonumbla Porphyry Cu-Au Deposits, New South Wales, Australia[J]. Economic Geology, 1990, 85(2):1808-1824.
[31] 祝向平,陈华安,马东方,等.西藏多不杂斑岩铜金矿钾长石40Ar/39Ar年龄及其地质意义[J].现代地质,2012,26(4):656-662. Zhu Xiangping, Chen Huaan, Ma Dongfang, et al. 40Ar/39Ar Dating for K-Feldspar from Duobuza Porphyry Copper-Gold Deposit in Tibet, China and Its Geological Significance[J]. Geoscience, 2012, 26(4):656-662.
[32] Hu F F,Fan H R,Jiang X H, et al. Fluid Inclusions at Different Depths in the Sanshandao Gold Deposit,Jiaodong Peninsula, China[J]. Geofluids, 2013, 13(4):528-541.
[33] Zhang X O, Cawood P A, Wilde S A, et al. Geology and Timing of Mineralization at the Cangshang Gold Deposit, Northwestern Jiaodong Peninsula, China[J]. Mineralium Deposita, 2003, 38:141-153.
[34] Li J W, Vasconcelos P M, Zhang J, et al. 40Ar/39Ar Constraints on a Temporal Link Between Gold Mineralization, Magmatism, and Continental Margin Transtension in the Jiaodong Gold Province, Eastern China[J]. Journal of Geology, 2003, 111:741-751.
[35] Wang C M, Deng J, Santosh M, et al. Timing, Tectonic Implications and Genesis of Gold Mineralization in the Xincheng Gold Deposit, China:C-H-O Isotopes, Pyrite Rb-Sr and Zircon Fission Track Thermo Chronometry[J]. Ore Geology Reviews, 2015, 65:659-673.
[36] Yang L Q, Guo L N, Wang Z L, et al. Timing and Mechanism of Gold Mineralization at the Wang'er Shan Gold Deposit, Jiaodong Peninsula, Eastern China[J]. Ore Geology Reviews, 2017, 88:491-510
[37] 李厚民,毛景文,沈远超,等.胶东北东季金矿钾长石和石英的Ar-Ar年龄及其意义[J].矿床地质,2003,22(1):72-77. Li Houmin, Mao Jingwen, Shen Yuanchao, et al. Ar-Ar Ages of K-Feldspar and Quartz from Dongji Gold Deposit, Northwest Jiaodong, and Their Significance[J]. Mineral Deposits, 2003, 22(1):72-77.
[38] Yang J H, Zhou X H. Rb-Sr, Sm-Nd, and Pb Isotope System-Atics of Pyrite:Implications for the Age and Genesis of Lode Gold Deposits[J]. Geology, 2001, 29:711-714.
[39] Zhang L C, Shen Y C, Liu T B, et al. 40Ar/39Ar and Rb-Sr Isochron Dating of the Gold Deposits on Northern Margin of the Jiaolai Basin, Shandong, China[J]. Science in China:Series D, 2003, 46(7):708-718.
[40] Hu F F, Fan H R, Yang J H, et al. Mineralizing Age of the Rushan Lode Gold Deposit in the Jiaodong Peninsula:SHRIMP U-Pb Dating on Hydrothermal Zircon[J]. Chinese Science Bulletin, 2004, 49(15):1629-1636.
[41] 胡芳芳,范宏瑞,杨进辉,等.胶东乳山金矿蚀变岩中绢云母40Ar/39Ar年龄及其对金成矿事件的制约[J].矿物岩石地球化学通报,2006,25(2):109-114. Hu Fangfang, Fan Hongrui, Yang Jinhui, et al. The 40Ar/39Ar Dating Age of Sericite from Altered Rocks in the Rushan Lode Gold Deposit, Jiaodong Peninsula and Its Constraints on the Gold Mineralization[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2006, 25(2):109-114.
[42] 薛建玲,庞振山,李胜荣,等.胶东邓格庄金矿床成因:地质年代学和同位素体系制约[J].岩石学报,2019,35(5):1532-1550. Xue Jiangling, Pang Zhenshan, Li Shengrong, et al. The Genesis of Denggezhuang Gold Deposit in Jiaodong:Constraints from Multigeological Chronology and Isotope System[J]. Acta Petrologica Sinica, 2019, 35(5):1532-1550.
[43] 陈玉民,范洪瑞,崔仓,等.胶西北大规模金成矿作用与成因模型[M].北京:地质出版社,2016:4-7. Chen Yumin, Fan Hongrui, Cui Cang, et al. A Large-Scale Gold Mineralization and Ore Genesis in the Northwestern Jiaodong Peninsula[M]. Beijing:Geological Publishing House, 2016:4-7.
[44] 申玉科,郭涛,杨玉泉,等.玲珑金矿田黑云母二长岩的发现及其Ar-Ar热年代学意义[J].地质力学学报,2016,22(3):778-793. Shen Yuke, Guo Tao, Yang Yuquan, et al. Discovery of Biotite Monzolite and Ar-Ar Thermochronology Significance in Linglong Gold Field[J]. Journal of Geomechanics, 2016, 22(3):778-793.
[45] 宋明春,伊丕厚,崔书学,等.胶东金矿"热隆-伸展"成矿理论及其找矿意义[J].山东国土资源,2013,19(7):1-12. Song Mingchun, Yi Pihou, Cui Shuxue, et al. Thermal Uplifting-Extension Ore-Forming Theory and Its Prospecting Significance in Jiaodong Gold Deposit[J]. Shandong Land and Resources, 2013, 19(7):1-12.
[46] 宋明春,宋英昕,丁正江,等.胶东金矿床:基本特征和主要争议[J].黄金科学技术,2018,26(4):406-422. Song Mingchun, Song Yingxin, Ding Zhengjiang, et al. Jiaodong Gold Deposits:Essential Characteristics and Major Controversy[J]. 2018, 26(4):406-422.
[47] Song M C, Deng J, Yi P H, et al. The Kiloton Class Jiaojia Gold Deposit in Eastern Shandong Province and Its Genesis[J]. Acta Geologica Sinica, 2014, 88(3):801-824.
[48] 杨晋升,阎书杰,张殿龙,等.山东埠上金矿床花岗岩、脉岩与金成矿关系研究[J].黄金科学技术,2011(2):52-55. Yang Jinsheng, Yan Shujie, Zhang Dianlong, et al. Research on the Relationship Between Granite, Vein Rock and Gold Mineralization in Bushang Gold Deposit[J]. Gold Science &Technology, 2011(2):52-55.
[49] 梁亚运.胶东早白垩世基性脉岩岩石成因与成矿动力学驱动[D].北京:中国地质大学(北京),2017:99-103. Liang Yayun.Petrogenesis of the Early Cretaceous Mafic Dikes and Metallogenic Dynamics in Jiaodong Peninsula[D]. Beijing:China University of Geosciences(Beijing),2017:99-103.
[50] Cathles L M, Erendi A H J, Barrie T. How Long Can a Hydrothermal System Be Sustained by a Single Intrusive Event?[J]. Economic Geology, 1997, 92:766-771.
[51] Henry C D, Elson H B, McIntosh W C, et al. Brief Duration of Hydrothermal Activity at Round Mountain, Nevada, Determined from 40Ar/39Ar Geochronology[J]. Economic Geology, 1997, 92:807-826.
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