2020 Vol. 39, No. 10
Article Contents

HAN Chaohui, SONG Yucai, LIU Yingchao, HOU Zengqian, CHENG Yang, ZHAI Zhongbao. Characteristics and genesis of the Ahangaran Pb Cu deposit Iran[J]. Geological Bulletin of China, 2020, 39(10): 1625-1638.
Citation: HAN Chaohui, SONG Yucai, LIU Yingchao, HOU Zengqian, CHENG Yang, ZHAI Zhongbao. Characteristics and genesis of the Ahangaran Pb Cu deposit Iran[J]. Geological Bulletin of China, 2020, 39(10): 1625-1638.

Characteristics and genesis of the Ahangaran Pb Cu deposit Iran

More Information
  • The Ahangaran Pb(Cu) deposit is located in the Sanandaj-Sirjan metamorphic zone of the Zagros orogenic belt, a Cenozoic continental collisional zone between Arabian(south) and Iran(north) blocks. The deposit is hosted in Lower Cretaceous dolomitic limestone and has conformable and lenticular orebodies and bed-crosscutting ore veins. Pre-ore stage of minerals are fine-grained quartz, and ore stage of minerals are composed of dolomite, barite, calcite, coarse-grained quartz, galena, chalcopyrite, pyrite, and tetrahedrite. The study of the fluid inclusions shows that the ore fluids are a Cl--Na+-Ca2+-Mg2+ system, with homogenization temperatures from 108℃ to 210℃ and the salinities from 7%NaCl eq to 29%NaCl eq. Combined with data of C-H-O isotopes from ore stage hydrothermal gangue minerals and associated fluid inclusions, the authors hold that the ore fluids were mainly derived from basinal brine, with or without contribution from magmatic fluids. The mineralization process led to the dissolution of the host carbonate. The δ34S values of barite range from 18.7‰ to 22.7‰, and sulfides range from -3.1‰ to 9.7‰, suggesting that the reduced sulfur was probably the result of biological sulfate reduction(BSR). But this does not exclude the probable contribution of reduced sulfur from thermochemical sulfate reduction(TSR). The 206Pb/204Pb, 207Pb/204Pb, and 208Pb/204Pb ratios of galena are 18.4083~18.454, 15.6512~15.6548, and 38.5628~38.5515, respectively, which are similar to those of the other Pb-Zn deposits in this region, i.e., the Malayer-Esfahan carbonated-hosted Pb-Zn metallogenic belt. It is suggested that their metals were derived from the same upper crustal rocks. Although the Ahangaran deposit shares some similarities with Mississippi Valley-type(MVT) deposits, the enrichment of ore stage quartz and copper sulfides suggests that the deposit may be classified as a magmatic-related carbonate-replacement-type deposit.

  • 加载中
  • [1] 张洪瑞, 侯增谦, 杨志明.特提斯成矿域主要金属矿床类型与成矿过程[J].矿床地质, 2010, 29(1):113-133.

    Google Scholar

    [2] Reynolds N A, Duncan L.Tethyan Zinc-Lead Metallogeny in Europe, North Africa, and Asia[J].Society of Economic Geologists, 2010, 15:339-365.

    Google Scholar

    [3] Hou Z, Zhang H.Geodynamaics and metallogeny of the eastern Tethyan metallogenic domain[J].Ore Geology Reviews, 2015, 70:346-384. doi: 10.1016/j.oregeorev.2014.10.026

    CrossRef Google Scholar

    [4] Alavi M.Tectonics of Zagros Orogenic belt of Iran, new data and interpretation[J].Tectonophysics, 1994, 229:211-238. doi: 10.1016/0040-1951(94)90030-2

    CrossRef Google Scholar

    [5] Stocklin J.Structural history and tectonics of Iran:A review[J].AAPG.Bull, 1968, 52:1229-1258.

    Google Scholar

    [6] Ghazban F, McNutt R H, Schwarcz H P.Genesis of sediment-hosted Zn-Pb-Ba deposits in the Irankuh District, Esfahan area, west-central Iran[J].Economic Geology, 1994, 89(6):1262-1278. doi: 10.2113/gsecongeo.89.6.1262

    CrossRef Google Scholar

    [7] Zamanian H.Mineralogy, paragenesis and genesis of Ahangaran Ag-Pb deposit, Malayer[D].Unpublished MSc.Thesis, Tehran Tarbiat Moallem University, 1993: 280(In Persian).

    Google Scholar

    [8] Ehya F, Lotfi M, Rasa I.Emarat carbonate-hosted Zn-Pb deposit, Markazi Province, Iran:A geological, mineralogical and isotopic(S, Pb) study[J].Journal of Asian Sciences, 2010, 37(2):186-194.

    Google Scholar

    [9] Momenzadeh M, Shafighi S, Rastad E, et al.The Ahangaran Lead-Silver Deposit, SE-Malayer, West Central Iran[J].Mineral Deposita(Berl.), 1979, 14:323-341.

    Google Scholar

    [10] Nadimi A, Konon A.Strike-slip faulting in the central part of the Sanandaj-Sirjan Zone, Zagros Orogen, Iran[J].Journal of Structural Geology, 2012, 40:2-16. doi: 10.1016/j.jsg.2012.04.007

    CrossRef Google Scholar

    [11] Morley C K, Kongwung B, Julapour A, et al.Structural development of a major late Cenozoic basin and transpressional belt in central Iran:The Central Basin in the Qom-Saveh area[J].Geosphere, 2009, 5(4):325-362. doi: 10.1130/GES00223.1

    CrossRef Google Scholar

    [12] Davoudian A R, Khalili M, Noorbehsht I, et al.Geochemistry of metabasites in the north of the Shahrekord, Sanandaj-Sirjan Zone, Iran.Neues Jahrbuch für Mineralogie-Abhandlungen[J].Journal of Mineralogy and Geochemistry, 2006, 182(3):291-298.

    Google Scholar

    [13] Davoudian A, Genser J, Dachs E, et al.Petrology of eclogites from north of Shahrekord, Sanandaj-Sirjan Zone, Iran[J].Mineralogy and Petrology, 2008, 92(3/4):393-413.

    Google Scholar

    [14] 刘英超, 宋玉财, 侯增谦, 等.伊朗扎格罗斯碰撞造山带马拉耶尔-伊斯法罕碳酸盐岩容矿铅锌成矿带[J].地质学报, 2015, 89(9):1573-1594.

    Google Scholar

    [15] Mohajjel M, Fergusson C L.Dextral transpression in Late Cretaceous continental collision, Sanandaj-Sirjan zone, western Iran[J].Journal of Structural Geology, 2000, 22(8):1125-1139. doi: 10.1016/S0191-8141(00)00023-7

    CrossRef Google Scholar

    [16] Sarkarinejad K, Faghih A, Grasemann B.Transpressional deformations within the Sanandaj-Sirjan metamorphic belt(Zagros mountains, Iran)[J].Journal of Structural Geology, 2008, 30(7):818-826. doi: 10.1016/j.jsg.2008.03.003

    CrossRef Google Scholar

    [17] Babaahmadi A, Mohajjel M, Eftekhari A, et al.An investigation into the fault patterns in the Chadegan region, west Iran:Evidence for dextral brittle transpressional tectonics in the Sanandaj-Sirjan Zone[J].Journal of Asian Earth Sciences, 2012, 43(1):77-88. doi: 10.1016/j.jseaes.2011.08.012

    CrossRef Google Scholar

    [18] Nadimi A, Konon A.Gaw-Khuni Basin:An active stepover structure in the Sanandaj-Sirjan zone, Iran[J].Geological Society of America Bulletin, 2012b, 124(3/4):484-498.

    Google Scholar

    [19] Safaei H.The continuation of the Kazerun fault system across the Sanandaj-Sirjan zone(Iran)[J].Journal of Asian Earth Sciences, 2009, 35(5):391-400. doi: 10.1016/j.jseaes.2009.01.007

    CrossRef Google Scholar

    [20] Mazhari S, Bea F, Amini S, et al.The Eocene bimodal Piranshahr massif of the Sanandaj-Sirjan Zone, NW Iran:a marker of the end of the collision in the Zagros orogeny[J].Journal of the Geological Society, 2009, 166(1):53-69. doi: 10.1144/0016-76492008-022

    CrossRef Google Scholar

    [21] Agard P, Omrani J, Jolivet L, et al.Zagros orogeny:a subduction-dominated process[J].Geological Magazine, 2011, 148(5/6):692-725.

    Google Scholar

    [22] Berberian F, Berberian M, Tectono-Plutonic Episodes in Iran[M].Geological Survey of Iran, 1981, 52: 566-593.

    Google Scholar

    [23] Hall D L, Stemer S M, Bodnar R J.Freezing point depression of NaCl-KCl-H2O Solutions[J].Economic Geology, 1988, 83:197-202. doi: 10.2113/gsecongeo.83.1.197

    CrossRef Google Scholar

    [24] 韩朝辉, 宋玉财, 刘英超, 等.伊朗Emarat铅锌矿床成矿特征及矿床成因研究[J].地质学报, 2015, 89(9):1595-1606.

    Google Scholar

    [25] Clyton R N, O'neil J R, Mayeda T K.Oxygen isotope exchange between quartz and water[J].Journal of Geophysical Research, 1972, 77(17):3057-3067. doi: 10.1029/JB077i017p03057

    CrossRef Google Scholar

    [26] Beane R E.The magmatic-meteoric transition[M].Geothermal Resources Council Special Report, 1983, 13: 245-253.

    Google Scholar

    [27] Roedder E.Composition of fluid inclusions[M].US Geological Survey Professional Paper, 1983, 440: 164.

    Google Scholar

    [28] 郑永飞, 徐宝龙, 周根陶.矿物稳定同位素地球化学研究[J].地学前缘, 2000, 47(1):34-41.

    Google Scholar

    [29] Ohmoto H.Systematics of Sulfur and Carbon Isotopes in Hydrothermal Ore Deposits[J].Economic Geology, 1972, 67(5):551-578. doi: 10.2113/gsecongeo.67.5.551

    CrossRef Google Scholar

    [30] Veizer J, Holser W T, Wilgus C K.Correlation of 13C/12C and 34S/32S secular variation.Geochim[J].Cosmochim.Acta, 1980, 44:579-588. doi: 10.1016/0016-7037(80)90250-1

    CrossRef Google Scholar

    [31] Taylor B E.Magmatic volatiles: Isotope variation of C, H and S reviews in mineralogy[C]//Valley G W, Taylor H P, O'neil J R.Stable Isotopes in High Temperature Geological Process.Washington, D.C.: Mineralogical Society of America, 1986, 16: 185-226.

    Google Scholar

    [32] 刘建明, 刘家军.滇黔桂金三角区微细浸染型金矿床的盆地流体成因模式[J].矿物学报, 1997, 17(4):448-456.

    Google Scholar

    [33] Clayton R N, Friedman I, Graf D L, et al.The origin of saline formation waters:1.Isotopic composition[J].Journal of Geophysical Research, 1966, 71:3869-3882. doi: 10.1029/JZ071i016p03869

    CrossRef Google Scholar

    [34] Hitchon B, Friedman I.Geochemistry and origin of formation waters in the western Canada sedimentary basin-I.Stable isotopes of hydrogen and oxygen[J].Geochimica et Cosmochimica Acta, 1969, 33:1321-1349. doi: 10.1016/0016-7037(69)90178-1

    CrossRef Google Scholar

    [35] Kharaka Y K, Berry F A F, Friedman I.Isotopic composition of oil-field brines from Kettleman North Dome, California, and their geologic implications[J].Geochimica et Cosmochimica Acta, 1973, 37:1899-1908. doi: 10.1016/0016-7037(73)90148-8

    CrossRef Google Scholar

    [36] Taylor H P.The application of oxygen and hydrogen isotope studies to problems of hydrothermal alteration and ore deposition[J].Economic Geology, 1974, 69:843-83. doi: 10.2113/gsecongeo.69.6.843

    CrossRef Google Scholar

    [37] 陈俊, 王鹤年.地球化学[M].北京:科学出版社, 2004.

    Google Scholar

    [38] Ferydoun G, Robert H M, Henry S.Genesis of sediment-Hosted Zn-Pb-Ba Deposits in the Irankuh District, Esfahan Area, West-Central Iran[J].Economic Geology, 1994, 89:1262-1278. doi: 10.2113/gsecongeo.89.6.1262

    CrossRef Google Scholar

    [39] George E, Claypool, William T, et al.The age curves of sulfur and oxygen isotopes in marine sulfate and their mutual interpretation[J].Chemical Geology, 1980, 28:199-260. doi: 10.1016/0009-2541(80)90047-9

    CrossRef Google Scholar

    [40] Detmers J, Bruchert V, Habicht K S, et al.Diversity of sulfur isotope fractionations by sulfate-reducing prokaryotes[J].Applied and Environmental Microbiology, 2001, 67:888-94. doi: 10.1128/AEM.67.2.888-894.2001

    CrossRef Google Scholar

    [41] Ohmoto H, Kaiser C J, Geer K A.Systematics of sulphur isotopes in recent marine sediments and ancient sediment-hosted base metal deposits[C]//Herbert H K, Ho S E.Stable isotopes and Fluid Processes in Mineralisation.Geol.Dep.Univ.Extens.Univ[J].Western Australia, 1990, 23: 70-120.

    Google Scholar

    [42] Machel H G.Relationships between sulphate reduction and oxidation of organic compounds to carbonate diagenesis, hydrocarbon accumulations, salt domes, and metal sulphide deposits[J].Carbonates Evaporites, 1989, 4:137-151. doi: 10.1007/BF03175104

    CrossRef Google Scholar

    [43] Doe B R, Zartman R E.Plumbotectonics1.The Phanerozoic[C]//Barnes H L.Geochemistry of Hydrothermal Ore Deposits 2nd(Ed).Wiley Interscience, 1979: 22-70.

    Google Scholar

    [44] Rajabi A, Rastad E, Canet C.Metallogeny of Cretaceous carbonate-hosted Zn-Pb deposits of Iran:geotectonic setting and data integration for future mineral exploration[J].International Geological Review, 2012, 54(14):1649-1672. doi: 10.1080/00206814.2012.659110

    CrossRef Google Scholar

    [45] Leach D L, Sangster D F, Kelley K D, et al.Sediment-hosted lead-zinc deposits:A global perspective[J].Economic Geology, 2005, 100:561-607.

    Google Scholar

    [46] Leach D L, Bradley D C, Huston D, et al.Sediment-Hosted Lead-Zinc Deposits in Earth History[J].Economic Geology, 2010, 105(3):593-625. doi: 10.2113/gsecongeo.105.3.593

    CrossRef Google Scholar

    [47] Paradis S, Hannigan P, Dewing K.Mississippi Valley-type lead-zinc deposits[C]//Mineral Deposits of Canada: A Synthesis of Major Deposit-Types, District Metallogeny, the Evolution of Geological Provinces, and Exploration Methods: Geological Association of Canada, Mineral Deposits Division, Special Publication, 2007, 5: 185-203.

    Google Scholar

    [48] Plumlee G S, Leach D L, Hofstra A H, et al.Chemical reaction path modeling of ore deposition in Mississippi valley-type Pb-Zn deposits of the Ozark region, U.S.Midcontinent[J].Economic Geology, 1994, 89:1361-1383. doi: 10.2113/gsecongeo.89.6.1361

    CrossRef Google Scholar

    [49] Dejonghe L, Darras B, Hughes G, et al.Weis D.Isotopic and fluid-inclusion constraints on the formation of polymetallic vein deposits in the central Argentinian Patagonia[J].Mineralium Deposita, 2002, 37(2):158-172. doi: 10.1007/s00126-001-0225-8

    CrossRef Google Scholar

    [50] Camprubí A, Gonzalez-Partida E, Torres-Tafolla E.Fluid inclusion and stable isotope study of the Cobre-Babilonia polymetallic epithermal vein system, Taxco district, Guerrero, Mexico[J].Journal of Geochemical Exploration, 2006, 89:33-38. doi: 10.1016/j.gexplo.2005.11.011

    CrossRef Google Scholar

    [51] Bendezú R, Page L, Spikings R, et al.New 40Ar/39Ar alunite ages from the Colquijirca district, Peru:evidence of a long period of magmatic SO2 degassing during formation of epithermal Au-Ag and Cordilleran polymetallic ores[J].Mineralium Deposita, 2008, 43(7):777-789. doi: 10.1007/s00126-008-0195-1

    CrossRef Google Scholar

  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Figures(14)

Tables(6)

Article Metrics

Article views(1256) PDF downloads(10) Cited by(0)

Access History

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint