Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (3): 759-771.doi: 10.13278/j.cnki.jjuese.201503110

Previous Articles     Next Articles

Geochemical Characteristics of Ore-Forming Fluids and Genesis of Dongshanwan Tungsten- Molybdenum Polymetallic Deposit in Inner Mongolia

Wang Chengyang1, Wang Keyong1, Zhou Xiangbin2, Li Wen3, Huang Guanghuan3, Li Jianfeng1, Zhang Xuebing1, Yu Qi1   

  1. 1. College of Earth Sciences, Jilin University, Changchun 130061, China;
    2. Institute of Geological Science of Heilongjing Province, Harbin 150036, China;
    3. Inner Mongolia Shandong Gold Minerals Survey Co., Ltd, Chifeng 024005, Inner Mongolia, China
  • Received:2014-11-13 Published:2015-05-26

PDF (PC)

527

Abstract:

Dongshanwan W-Mo poly-metallic deposit is a newly discovered porphyry type deposit in the southern Great Xing'an Range.It occurs in the contact zone of the Late Yanshanian granitoids and Permian strata. It mainly develops as vein-let type and fine vein disseminated type in terms of mineralization. The formation of Dongshanwan deposit can be divided into three stages: I. wolframite-arsenopyrite-quartz,Ⅱ. arsenopyrite-molybdenite-quartz, and Ⅲ. silver polymetallic-quartz. For the purpose of getting the origin, nature,and evolution characteristics of the ore-forming fluids of the different mineralization stages, we discuss the petrography, micro-thermometry, and carbon-hydrogen-oxygen isotope of the fluid inclusions. The results show that: the aqueous two-phase and vapor-rich two-phase fluid inclusions developed in stage I and II, their homogenization temperature ranges 232.7-321.7 ℃ and 201.2-352.7 ℃, the salinity values of ranges 3.4%-9.8% and 4.1%-10.4%, and the ore-forming fluid belongs to medium temperature and medium salinity NaCl-H2O hydrothermal system. The aqueous two-phase fluid inclusions developed in stage III, their homogenization temperature ranges from 198.6 to 273.5℃, the salinity values ranges from 5.0%-8.4%, and the ore-forming fluid belongs to low temperature and low salinity NaCl-H2O hydrothermal system. The δ18O value of quartz sample ranges from 7.5‰-9.0‰, the δDH2O-SMOW value and δ13CPDB value of the fluid inclusions in quartz are -175.6‰--160.3‰ and -23.5‰--20.1‰. The ore-forming fluid has the characteristics of hydrothermal magma, which is accompanied by adding of meteoric water and organic matter in the formation, this led to a lower value of δDH2O-SMOW and δ13CPDB value of ore-forming fluid. The immiscibility and adding of meteoric water led to the mineralization of tungsten and tin, and the silver poly-metallic mineralization might be caused mainly by cooling of the ore-forming fluid.

Key words: Dongshanwan W-Mo deposit, ore-forming fluids, geochemical nature, ore genesis, Inner Mongolia

CLC Number: 

  • P618.6

[1] 付占荣,陈会军. 内蒙古巴林左旗东山湾钨锡铍矿床地质特征及找矿前景[J]. 桂林工学院学报,2004, 24(2):148-151. Fu Zhanrong, Chen Huijun. Geological Characteristics and Prospect of Mineral Exploration of Dongshanwan W-Sn-Be Deposit at Balinzuo County of Inner Mongolia[J]. Journal of Guilin University of Technology,2004,24(2):148-151.

[2] 周振华,吕林素,杨永军,等. 内蒙古黄岗锡铁矿区早白垩世A型花岗岩成因:锆石U-Pb年代学和岩石地球化学制约[J]. 岩石学报,2010,25(3):667-669. Zhou Zhenhua,Lü Linsu,Yang Yongjun, et al. Petrogenesis of the Early Cretaceous A-Type Granite in the Huanggang Sn-Fe Deposit, Inner Mongolia: Constraints from Zircon U-Pb Dating and Geochemistry[J]. Acta Petrologica Sinica,2010, 25(3):667-669.

[3] 许文良, 王枫, 裴福萍, 等. 中国东北中生代构造体制与区域成矿背景: 来自中生代火山岩组合时空变化的制约[J]. 岩石学报, 2013, 29(2): 339-353. Xu Wenliang,Wang Feng,Pei Fuping, et al. Mesozoic Tectonic Regimes and Regional Ore-Forming Background in NE China: Constraints from Spatial and Temporal Variations of Mesozoic Volcanic Rock Associations[J]. Acta Petrologica Sinica, 2013, 29(2): 339-353.

[4] 武新丽, 毛景文, 周振华. 大兴安岭中南段布敦化铜矿床金鸡岭矿段流体包裹体研究[J]. 矿床地质, 2014, 33(1): 210-222. Wu Xinli,Mao Jingwen,Zhou Zhenhua.Fluid Inclusion Study of Jinjiling Ore Block in Budunhua Cu Deposit Along Middle-South Section of Da Hinggan Mountains[J]. Mineral Deposits, 2014, 33(1): 210-222.

[5] 马星华,陈斌. 大兴安岭南段敖仑花斑岩钼(铜)矿床成矿流体来源与成矿作用:稳定同位素C、H、O、S和放射性Pb同位素约束[J]. 吉林大学学报:地球科学版,2011,41(6):1770-1783. Ma Xinghua,Chen Bin. The Source of Hydrothermal Fluids and Mineralization in the Aolunhua Porphyry Mo-Cu Deposit,Southern Da Hinggan Mountains: Constraints from Stable (C,H,O and S) and Radiogenic(Pb) Isotops[J]. Journal of Jilin University: Earth Science Edition,2011, 41 (6) : 1770-1783.

[6] 张吉衡. 大兴安岭中生代火山岩年代学及地球化学研究[D].武汉:中国地质大学,2009. Zhang Jiheng.Chronology and Geochemistry of the Mesozoic Volcanic Rocks in the Great Xing'an Range Northeastern China[D]. Wuhan:China University of Geoscinces, 2009.

[7] 张健, 卞雄飞, 陈树旺, 等. 大兴安岭中南部上二叠统林西组页岩气资源前景[J]. 地质通报, 2013, 32(8): 1297-1306. Zhang Jian,Bian Xiongfei,Chen Shuwang,et al. Shale Gas Resources Prospect of Late Permian Linxi Formation in the Middle-Southern Part of the Da Hinggan Mountains[J].Geological Bulletin of China, 2013, 32(8):1297-1306.

[8] Bai Ling'an, Sun Jinggui, Gu Alei, et al. A Review of the Genesis, Geochronology, and Geological Significance of Hydrothermal Copper and Associated Metals Deposits in the Great Xing'an Range, NE China[J]. Ore Geology Reviews, 2014, 61: 192-203.

[9] 徐毅. 黄岗甘珠尔庙成矿带多金属矿构造控矿特征分析[D]. 北京:中国地质大学,2005. Xu Yi. Structure Control Characteristics of Polymetallic Deposits in Huanggang-Ganzhuermiao Metallogenic Belt, Inner Mongolia Province[D]. Beijing:China University of Geoscinces, 2005.

[10] 辛江. 内蒙古东南部多金属成矿系列与找矿模型[D]. 北京:中国地质大学,2013. Xin Jiang.The Polymetallic Metallogenic Series and Exploration Modle in the Southeast of Inner Mongolia[D]. Beijing:China University of Geosience,2013.

[11] Brown P E,Hagemann S G. MacFlincor and Its Application to Fluids in Archean Lode-Gold Deposits[J]. Geochimica et Cosmochimica Acta, 1995,59(19):3943-3952.

[12] 戴金星, 宋岩,洪峰,等. 中国东部无机成因的二氧化碳气藏及其特征[J]. 中国海上油气:地质, 1994, 8(4): 215-222. Dai Jinxing, Song Yan, Hong Feng, et al.Inorganic Genetic Carbon Dioxide Gas Accumulations and Their Characteristics in East Part of China[J]. China Offshore Oil and Gas:Geology,1994, 8(4): 215-222.

[13] Roedder E. Fluid Inclusion Evidence for Immiscibility in Magmatic Differentiation[J]. Geochimica et Cosmochimica Acta, 1992, 56(1): 5-20.

[14] Foster R P. Fluid Inclusion Studies[J]. Journal of the Geological Society, 1988, 145(1): 137-138.

[15] Drummond S E,Ohmoto H. Chemical Evolution and Mineral Deposition in Boiling Hydrothermal Systems[J]. Economic Geology, 1985,80(1):126-147.

[16] Li Xiaofeng, Wang Chunzeng, Hua Renmin, et al. Fluid Origin and Structural Enhancement During Mineralization of the Jinshan Orogenic Gold Deposit, South China[J]. Mineralium Deposita, 2010, 45(6): 583-597.

[17] Chen Xiaodan,Ye Huishou,Wang Huan. Genesis and Evolution of the Leimengou Porphyry Mo Deposit in West Henan Province, East Qinling-Dabie Belt, China: Constraints from Hydrothermal Alteration, Fluid Inclusions and Stable Isotope Data[J]. Journal of Asian Earth Sciences 2014, 79: 710-722.

[18] Webster J D. The Exsolution of Magmatic Hydrosaline Liquids[J]. Chemical Geology, 2004, 210(1):33-48.

[19] 郑永飞,陈江峰. 稳定同位素地球化学[M].北京:科学出版社,2000: 1-360. Zheng Yongfei,Chen Jiangfeng.Geochemistry of Stable Isotpes[M].Beijing:Science Press, 2000: 1-360.

[20] 张理刚.稳定同位素在地质科学中的应用[M].西安:陕西科学技术出版社,1985:91-94. Zhang Ligang.The Application of Stable Isotope to Geology[M].Xi'an:Shaanxi Science and Technology Press, 1985:91-94.

[21] Halter W E,Webster J D. The Magmatic to Hydrothermal Transition and Its Bearing on Ore-Forming Systems[J]. Chemical Geology,2004,210(1): 1-6.

[22] 王可勇,张春燕,樊岳铭,等.山东玲珑金矿床成矿流体地球化学特征[J]. 吉林大学学报:地球科学版,2008,38(2):194-201. Wang Keyong,Zhang Chunyan,Fan Yueming, et al. Geochemical Characteristics of Ore-Forming Fluids of the Linglong Gold Deposit in Shandong Province[J]. Journal of Jilin University: Earth Science Edition, 2008,38(2):194-201.

[23] 万多,王可勇,李文昌,等. 滇西北热林Cu-Mo矿床流体包裹体特征[J]. 吉林大学学报:地球科学版,2012, 42 (增刊3):54-63. Wan Duo,Wang Keyong,Li Wenchang, et al. The Geochemical Characteristics of Ore-Forming Fluids of Relin Cu-Mo Deposit in Northwestern Yunnan Province[J].Journal of Jilin University: Earth Science Edition,2012, 42 (Sup.3):54-63.
[1] Li Xiangwen, Zhang Zhiguo, Wang Keyong, Sun Jiapeng, Yang Jibo, Yang He. Characteristics of Ore-Forming Fluid and Genesis of Baoxinggou Gold Deposit in North of Great Xing'an Range [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(4): 1071-1084.
[2] Ruan Dawei, Li Shunda, Bi Yaqiang, Liu Xingyu, Chen Xuhu, Wang Xingyuan, Wang Keyong. Ore-Controlling Structures and Deep Metallogenic Prediction of Aerhada Pb-Zn Deposit in Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(6): 1705-1716.
[3] Fu Junyu, Wang Yan, Zhong Hui, Song Weimin, Sun Wei, Na Fuchao, Qian Cheng, Yang Yajun, Pang Xuejiao, Jiang Shan. Geochemistry and Source Characteristics of Ultramafic Rocks in Tuquan Mangniuhai, Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 1172-1186.
[4] Hao Libo, Zhao Xin, Zhao Yuyan. Stable Isotope Characteristics and Ore Genesis of the Baiyun Gold Deposit,Liaoning Province [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(2): 442-451.
[5] Wu Di, Zhuang Tingxin, Tian Li, Liu Xiaodong, Li Weimin. Geological Features and Ore Genesis of Huanggou Uranium Deposit in Eastern Liaoning Uranium Metallogenic Belt [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(2): 452-463.
[6] Wang Li, Sun Liwei. Characteristics of Ore-Forming Fluid of the Sizhuang Gold Deposit in Shandong Province [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(6): 1697-1710.
[7] Wang Xi, Duan Mingxin, Ren Yunsheng, Hou Zhaoshuo, Sun Deyou, Hao Yujie. Characteristics of Fluid Inclusions and Mineralization Age of Badaguan Cu-Mo Deposit in Erguna Area, Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(5): 1354-1367.
[8] Wang Keyong, Fu Lijuan, Wei Liemin, Wang Zhigao. Characteristics of Hydrothermal Superimposed Mineralization and Source of Ore-Forming Fluids in Zhenzigou Pb-Zn Deposit,Liaoning Province [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(1): 80-90.
[9] Liu Qun, Wang Wanqiong, Qiu Dianming, Bai Xinhui, Zhang Jinfeng, Wang Xin. Early Carboniferous Tectonic Attribute of the Central-Northern Margin of North China Craton: Constraints from Geochemistry of Highly Fractionated Ⅰ-Type Granites in Cahayouhouqi Area [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(4): 1121-1131.
[10] Han Jun, Xue Wei, Song Qingnian. Characteristics of Volcanic-Type Uranium-Ore Forming and Sign for Uranium Searching at Hetaoba Area, Duolun County, Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(3): 772-790.
[11] Xi Aihua, Ma Yanjun, Ge Yuhui, Tang Xiangyang, Liu Shuai, Xu Bowen, Liu Jue. Multi-Stage Intrusive Evidence and Geological Significance of Dayingzi Granite in Chifeng,Eastern Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(3): 791-803.
[12] Feng Xiaoxi, Yao Shuzhen, Duan Ming, Qu Kai, Wang Jiaying, Feng Xubiao, Li Chao, Zhou Limin. Re-Os Isotopic Dating of Molybdenite from the Bainaimiao Cu(Mo) Deposit in Inner Mongolia and Its Geological Significance [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 132-141.
[13] Wang Zhihua, Chang Chunjiao, Cong Runxiang, Wang Liang, Ma Dexi, Wang Xiaojun. SHRIMP Zircon U-Pb Age and Geochemical Characteristics of the Achieng Qulu Monzogranite in Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 166-187.
[14] Zhang Guobin, Yang Yanchen, Wang Xianzhong, Zhang Zhiguo, Ye Songqing, Li Qinglu,Li Xiangwen,Li Haiyang, Wang Qingshuang. Geochemistry and Ore Genesis of the Balifang Gold Deposit in Mohe, Heilongjiang Province [J]. Journal of Jilin University(Earth Science Edition), 2013, 43(6): 1812-1827.
[15] Wang Yue, Zhu Xiangkun, Cheng Yanbo, Li Zhihong. Ore Microscopy & Fe Isotope of the Xinqiao Deposit and Their Constraints on the Ore Genesis [J]. Journal of Jilin University(Earth Science Edition), 2013, 43(6): 1787-1798.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd