| Citation: |
LI Shan-ping, LI Wu-fu, BAI Zong-hai, SHU Shu-lan, CHEN Jing, REN Hua. Geochemical Characteristics and Genetic Analysis of Lead-zinc Deposits of the Mohailaheng Area in the Northern Section of Lancang River, Nujiang River, Jinsha River, Qinghai[J]. Northwestern Geology, 2014, 47(1): 127-136.
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Geochemical Characteristics and Genetic Analysis of Lead-zinc Deposits of the Mohailaheng Area in the Northern Section of Lancang River, Nujiang River, Jinsha River, Qinghai
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Abstract
Mohailaheng lead-zinc mineralization is located in Jieduo back-arc foreland basin in the northern margin of metallogenic belt in the northern section of Lancang River, Nujiang River and Jinsha River. It mainly contains carbonate seam of Zaduo group in Lower Carboniferous. Ore-bearing formation and the NWW fracture are important ore-controlling factors in the Mohailaheng area. Ore minerals are mostly galena, sphalerite, limonite, etc. In the studied area, major element Mg/Ca value is less than 0.6, the average LREE/HREE value is 5.59, the (La/Yb)N average is of 0.73, showing that there is LREE/HREE fractionation, and there is a weak HREE enrichment characteristic; Trace elements Sr and Ba are slightly enriched, Rb, Th, Ta, Nb and other elements show a slight loss characteristic. These data indicate that ore body and surrounding rock have the same or similar material sources. In conclusion, lead-zinc deposits originated in shallow shore-paralic depositional environment, and ore deposit genesis possesses the characteristics of the Mississippi Valley-type(MVT) deposit. -
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References
侯增谦, 宋玉财, 李政, 等.青藏高原碰撞造山带Pb-Zn-Ag-Cu矿床新类型:成矿基本特征与构造控矿模型[J].矿床地质, 2008, 27(2):421-441. Hou Z Q, Song Y C, Li Z, et al. Thrust-controlled, sedimentshosted Pb-Zn-Ag-Cu deposits in eastern and northern margins of Tibet anorogenic belt: Geological features and tectonic model[J].Mineral Deposits, 2008, 27 (2): 421-441 (in Chinese with English abstract). 王召林, 侯增谦, 杨竹森, 等.青海杂多地区新生代构造特征与两种矿床的关系[J].矿床地质, 2009, 28: 157-169. Wang Z L, Hou Z Q, Yang Z S, et al. Structural characteristics of Cenozoic strata and relationship between two types of ore deposits in Zaduo area, southern Qinghai[J]. Mineral Deposits, 2009, 28(2): 157-169(in Chinese with English abstract). 李善平, 马海州, 沈存祥, 等.青藏高原北羌塘盆地结扎乡一带二叠系尕笛考组火山岩的特征及构造环境[J], 西北地质, 2008, 41(2):31-41. Li S P, Ma H Z, Shen C X, et al.Geochemical Characteristics and Tectonic of Volcanic Rocks of the Permian Gadikao Formation in the Jiezha Area, Northern Qiangtang, Qinghai-Tibet Plateau[J].Northwestern geology, 2008, 41(2):31-41 (in Chinese with English abstract). 王毅智, 叶占福, 李琳业, 等.青海南部杂多地区新建扎青组的地层层序及地质意义[J], 西北地质, 2010, 43(3):20-27. Wang Y Z, Ye Z F, Li L Y, et al.The Stratigraphic Sequence and Geological Significance of New Zaqing Formation in Zaduo Area, South Qinghai[J].Northwestern geology, 2010, 43(3):20-27(in Chinese with English abstract). 王辉, 张峰, 王冰洁, 等.羌塘盆地晚三叠世构造属性与层序地层格架下聚煤特征[J], 西北地质, 2009, 42(4):92-102. Wang H, Zhang F, Wang B J, et al.The Structure Characteristics and Coal-Accumulating Features Under Sequence Framework in the Late Triassic of Qiangtang Basin[J].Northwestern geology, 2009, 42(4):92-102 (in Chinese with English abstract). 田世洪, 杨竹森, 侯增谦, 等.玉树地区东莫扎抓和莫海拉亨铅锌矿床Rb-Sr和Sm-Nd等时线年龄及其地质意义[J].矿床地质, 2009, 28(6):747-758. Tian S H, Yang Z S, Hou Z Q, et al. Rb-Sr and Sm-Nd isochron ages of Dongmozhazhua and Mohailaheng Pb-Zn ore deposits in Yushu area, southern Qinghai and their geological implications[J].Mineral Deposits, 2009, 28(6):747-758 (in Chinese with English abstract). 杨志明, 侯增谦, 杨竹森, 等.青海纳日贡玛斑岩钼(铜)矿床:岩石成因及构造控制[J].岩石学报, 2008, 24(3):489-502. Yang Z M, Hou Z Q, Yang Z S, et al. Genesisofporphyries and tectonic controlson the Narigongma porphyry Mo-Cu deposit, southern Qinghai[J].Acta Petrologica Sinica, 2008, 24(3):489-502(in Chinese with English abstract) 陈有顺, 李善平, 李永祥, 等.青藏高原北羌塘盆地纳日贡玛铜钼矿床地质特征及控矿条件[J], 西北地质, 2010, 43(4):256-267. Chen Y S, Li S P, Li Y X, et al.Geological Features of Copper-Molybdenum Deposit in Narigongma Area of Qiangtang Basin in Qinghai-Xizang Plateau[J], Northwestern geology, 2010, 43(4):256-267 (in Chinese with English abstract). 侯增谦, 莫宣学, 杨志明, 等.青藏高原碰撞造山带成矿作用:构造背景、时空分布和主要类型[J].中国地质, 2006a, 33:348-359. Hou Z Q, Mo X X, Yang Z M, et al. The qinghai-tibet plateau collosion orogenic belt mineralization: tectonic background, time and space distribution and the main types[J].China geology, 2006 a, 33:348-359(in Chinesewith English abstract). 徐善法, 袁志亮, 陈建平.三江北段地球化学特征研究[J].物探与化探, 2007, 31(2):199-206. Xu S F, Yuan Z L, Chen J P. Geochemical study of the Sanjiang north[J].Geophysical exploration and geochemical exploration, 2007, 31(2):199-206(in Chinesewith English abstract). 张启明, 陈建平, 齐先茂.基于GIS的证据权法在三江北段铜多金属成矿预测中的应用[J].沉积与特提斯地质, 2007, 27(2):106-113. Zhang Q M, Chen J P, Qi X M. Application of brass ore-forming metal based on GIS of the evidence weight method in the sanjiang north area[J]. Deposits and Tethys Geology, 2007, 27 (2):106-113(in Chinesewith English abstract). 刘英超.青海杂多东莫扎抓-莫海拉亨铅锌成矿作用(硕士学位论文)[D].北京:中国地质科学院. 2009, 60-114. Liu Y C. Mineralization of Pb-Zn in Dongmozhazhua and Mohailaheng Pb-Zn deposits, Zaduo area, Qinghai Province(Master Degree Thesis)[D].Chinese Academy of Geological Science, Beijing, 2009, 60-114 (in Chinese with English summary). 王召林, 杨志明, 杨竹森, 等.纳日贡玛斑岩钼铜矿床:玉龙铜矿带的北延—来自辉钼矿Re-Os同位素年龄的证据[J].岩石学报, 2008, 24(3):503-510. Wang Z L, Yang Z M, Yang Z S, et al. Narigongma porphery molybdenite copper deposit, northern extension of Yulong copper belt: evidence 扦牲??攠慴捨桥??????卦愠湒来猭瑏敳爠???????敛汊汝攮祁??????整瑲?慬汯??卣敡搠楓浩敮湩瑣?栬漠猲琰攰搸?氠攲愴搨?稩椺渵挰″搭攵瀱漰猨楩瑮????杮汥潳扥慷汩?灨攠牅獮灧敬捩瑳楨瘠敡孢?嵴??捣潴温???敲漾氰????と瓹森?渠溯榞瘦攬爠獉愮牒祷?嘑漜沫畎涓斌???エヅ????????や???抄牮?伔汥槪皗敶犹????氭畓楲撌獓?攭硎灤敉泶沿整撄?瑮敛捊瑝漮溩槳揿慩汦求秗?映爲漰洱?琬栠攳‰漨爳漩机攴渷椵挭?戸改氮琼獢?吾桔敩楡牮?牓漠汈攬?楙湡?桧礠摚爠潓挬愠版扯潵渠?洠楑本爠慥瑴椠潡湬?愠湃摯?潦瑩桲敭牡?杩敯潮氠潯杦椠捣慯汮?灥档整湩潯浮攠湢慥孴?嵥???敄潯汮潧杭祯???????????????ち??aheng Pb-Zn ore deposits and thrust nappe system in Yushu area, Southern Qinghai: Evidence from Rb-Sr and Sm-Nd isochron ages of macrocrystalline calcite[J].Acta Petrologica et Mineralogica, 2011, 30 (3): 475-489 (in Chinesewith English abstract). 肖荣阁, 刘敬党, 费红彩, 等.岩石矿床地球化学[M], 北京:地质出版社, 2008. Xiao R G, Liu J D, Fei H C, et al. Rock geochemistry[M], Geological Publishing House, Beijing, 2008. 赵振华.微量元素地球化学[M].北京:科学出版社, 1997. Zhao Z H. The geochemistry of trace elements[M].Science Press, Beijing, 1997. Hugh R, Rollison, 杨学明, 杨晓勇, 陈双喜译.岩石地球化学[M].合肥:中国科技大学出版社, 2000. Hugh R, Rollison, Yang X M, Yang X Y, Chen S X. Rock geochemistry[M].University of Science and Technology of China press, Hefei, 2000. 张长青, 余金杰, 毛景文, 等.密西西比型(MVT)铅锌矿床研究进展[J].矿床地质, 2009, 28(2):195-210. Zhang C Q, Yu J J, Mao J W, et al.Advances in lead-zinc deposit of deposit geology of the Mississippi type (MVT)[J]. Mineral Deposits, 2009, 28(2):195-210. 周朝宪, 魏春生, 叶造军.密西西比河谷型铅锌矿床[J].地质地球化学, 1997, 1(1):65-75. Zhou C X, Wei C S, Ye Z J.Mississippi Valley-type lead-zinc deposit[J].geology geochemistry, 1997, 1(1):65-75. Mclenenan S.M. Rare earth elements in sedimentary rocks:influence of provenance and sedimentary processes, in:Lipin B.R.and Mckay G.A.(eds.), Geochemistry and mineralogy of rare earth elements.Rev[J].Mineral., 1989, 21:169-200. Gromet L.P., Dymek R.F., Haskin L.A.and Korotev R.L., The"North American shale composite":its compilation, major and trace element characteristics.Geochim.Cosmochim[J]. Acta, 1984, 48:2469-2482. Taylor S.R.and Mclennan S.M. The composition and evolution of the continental crust:rare earth element evidence from sedimentary rocks[M].Phil.Trans.R.Soc.London, 1981, A301, 381-399.< -
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LI Shan-ping, LI Wu-fu, BAI Zong-hai, SHU Shu-lan, CHEN Jing, REN Hua. Geochemical Characteristics and Genetic Analysis of Lead-zinc Deposits of the Mohailaheng Area in the Northern Section of Lancang River, Nujiang River, Jinsha River, Qinghai[J]. Northwestern Geology, 2014, 47(1): 127-136.
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