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Mineralization of Luziyuan Pb–Zn skarn deposit, Baoshan, Yunnan Province, SW China: evidence from petrography, fluid inclusions and stable isotopes

Published online by Cambridge University Press:  18 January 2018

YU-LONG YANG ,
LIN YE ,
TAN BAO ,
WEI GAO  and
ZHEN-LI LI
YU-LONG YANG
Affiliation:
State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
LIN YE*
Affiliation:
State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
TAN BAO
Affiliation:
State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China Graduate School of Chinese Academy of Sciences, Beijing 100039, China
WEI GAO
Affiliation:
State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China Graduate School of Chinese Academy of Sciences, Beijing 100039, China
ZHEN-LI LI
Affiliation:
State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China Graduate School of Chinese Academy of Sciences, Beijing 100039, China
*
†Author for correspondence: [email protected]
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Abstract

The Luziyuan Pb–Zn skarn deposit, located in the Baoshan–Narong–Dongzhi block metallogenic belt in SW China, is hosted by marble and slate in the upper Cambrian Shahechang Formation. Three skarn zones have been identified from the surface (1495 m above sea level (asl)) to a depth of 1220 m asl: zone 1 consists of chlorite–actinolite–calcite–quartz, zone 2 of rhodonite–actinolite–fluorite–quartz–calcite, and zone 3 contains garnet–rhodonite–actinolite–fluorite–quartz–calcite. The deposit formed in four distinct mineralization stages: an early anhydrous skarn (garnet, rhodonite and bustamite) stage (Stage 1), a hydrous skarn (actinolite and chlorite) stage (Stage 2), an early quartz (coarse barren quartz veins) stage (Stage 3) and a late sulphide-forming (fine sulphide-bearing quartz veins) stage (Stage 4). The Stage 1 skarn-forming fluid temperature was at least 500 °C according to the geothermometer with rhodonite/bustamite trace elements measured by laser ablation – inductively coupled plasma – mass spectrometry (LA-ICP-MS). A decrease in ore fluid temperatures with time is consistent with the decreases in the δ18Ofluid and δDfluid values from Stage 3 to 4. This trend suggests that the ore fluid was mainly derived from magmatic water and mixed with large amounts of meteoric water during mineralization. The δ34S values of Stage 4 chalcopyrite, sphalerite and galena are similar to those of an Ordovician gypsum layer, and together with the high-salinity fluids in Stage 4 indicate the dissolution of evaporites in the Luziyuan region. Overall, the results of this study suggest that the Luziyuan deposit is a distal Pb–Zn skarn deposit that formed in response to multi-stage alteration associated with a combination of magmatic water and meteoric water.

Keywords

rhodonitefluid inclusionstable isotopesore-forming fluidLuziyuan distal Pb–Zn skarn depositsouthwest China
Type
Original Article
Information
Geological Magazine , Volume 156 , Issue 4 , April 2019 , pp. 639 - 658
Copyright
Copyright © Cambridge University Press 2018 

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References

Abrecht, J. 1985. Manganiferous pyroxenes and pyroxenoids from three Pb-Zn-Cu skarn deposits. Contributions to Mineralogy and Petrology 89, 379–93.Google Scholar
Abrecht, J. 1989. Manganiferous phyllosilicate assemblages: occurrences, compositions and phase relations in metamorphosed Mn deposits. Contributions to Mineralogy and Petrology 103, 228–41.Google Scholar
Abrecht, J. & Peters, T. J. 1980. The miscibility gap between rhodonite and bustamite along the join MnSiO3-Ca0.6Mn0.4SiO3. Contributions to Mineralogy and Petrology 74, 261–9.Google Scholar
Ahmad, S. N. & Arthur, W. R. 1980. Fluid inclusions in porphyry and skarn ore at Santa Rita, New Mexico. Economic Geology 75, 229–50.Google Scholar
Baertschi, P. 1976. Absolute 18O content of standard mean ocean water. Earth and Planetary Science Letters 31, 341–4.Google Scholar
Bertelli, M., Baker, T., Cleverley, J. S. & Ulrich, T. 2009. Geochemical modelling of a Zn–Pb skarn: constraints from LA-ICP-MS analysis of fluid inclusions. Journal of Geochemical Exploration 102, 13–26.Google Scholar
Bodnar, R. J. 1993. Revised equation and table for determining the freezing point depression fo H2O-NaCl solutions. Geochimica et Cosmochimica Acta 57, 683–4.Google Scholar
Bodnar, R. J., Burnham, C. W. & Sterner, S. M. 1985. Synthetic fluid inclusions in natural quartz. III. Determination of phase equilibrium properties in the system H2O-NaCl to 1000 °C and 1500 bars. Geochimica et Cosmochimica Acta 49, 1861–73.Google Scholar
Bodnar, R. J. & Vityk, M. O. 1994. Interpretation of microthermometric data for H2O-NaCl fluid inclusions. In Fluid Inclusions in Minerals: Methods and Applications (eds Vivo, B. De & Frezzotti, M. L.), pp. 117–30. Blacksbury, VA: Virginia Technical Institute.Google Scholar
Brown, P. E., Essene, E. J. & Peacor, D. R. 1980. Phase relations inferred from field data for Mn pyroxenes and pyroxenoids. Contributions to Mineralogy and Petrology 74, 417–25.Google Scholar
Cabella, R., Gaggero, L. & Lucchetti, G. 1991. Isothermal isobaric mineral equilibria in braunite-bearing, rhodonite-bearing, johannsenite-bearing, calcite-bearing assemblages from northern Apennine metacherts (Italy). Lithos 27, 149–54.Google Scholar
Canet, C., González-Partida, E., Camprubí, A., Castro-Mora, J., Romero, F. M., Prol-Ledesma, R. M., Linares, C., Romero-Guadarrama, J. & Sánchez-Vargas, L. 2011. The Zn–Pb–Ag skarns of Zacatepec, Northeastern Oaxaca, Mexico: a study of mineral assemblages and ore-forming fluids. Ore Geology Reviews 39, 277–90.Google Scholar
Cang, F. B., Deng, M. G. & Wang, P. 2013. A study on fluid inclusions of Luziyuan Pb-Zn deposit, Zhenkang county, western of Yunnan Province. Acta Mineralogica Sinica S1, 428–9 (in Chinese with English summary).Google Scholar
Chen, Y. Q., Huang, J. N. & Lu, Y. X. 2009. Geochemistry of elements, sulphur-lead isotopes and fluid inclusions from Jinla Pb-Zn-Ag poly-metallic ore field at the joint area across China and Myanmar border. Earth Science (Journal of China University of Geosciences) 34, 585–94 (in Chinese with English summary).Google Scholar
Chen, Y. Q., Lu, Y. X. & Xia, Q. L. 2005. Geochemical characteristics of the Hetaoping Pb-Zn deposit, Baoshan, Yunnan, and its genetic model and ore prospecting model pattern. Geology in China 32, 90–9 (in Chinese with English summary).Google Scholar
Chi, G. X. & Lu, H. Z. 2008. Validation and representation of fluid inclusion microthermometric data using the fluid inclusion assemblage (FIA) concept. Acta Petrologica Sinica 24, 1945–53 (in Chinese with English summary).Google Scholar
Clayton, W. M. & Mayeda, T. K. 1963. The use of bromine penta-fluoride in the extraction of oxygen from oxides and silicates for isotopic analysis. Geochimica et Cosmochimica Acta 27, 43–52.Google Scholar
Coleman, M. L., Sheppard, T. J., Durham, J. J., Rouse, J. E. & Moore, G. R. 1982. Reduction of water with zinc for hydrogen isotope analysis. Analytical Chemistry 54, 993–5.Google Scholar
Craig, H. 1961. Standards for reporting concentrations of deuterium and oxygen 18 in natural waters. Science 133, 1833–4.Google Scholar
De Hoog, J. C. M., Taylor, B. E. & Van Bergen, M. J. 2009. Hydrogen-isotope systematics in degassing basaltic magma and application to Indonesian arc basalts. Chemical Geology 266, 256–66.Google Scholar
Deng, M. G., Li, W. C. & Wen, H. J. 2013. Prospecting significance of rhodonite in the Luziyuan lead-zinc polymetallic ore deposit in Zhenkang, western Yunan. Geological Bulletin of China 32, 1867–9 (in Chinese with English summary).Google Scholar
Dong, W. W. & Chen, S. L. 2007. The characteristics and genesis of Luziyuan Pb-Zn deposit, Zhenkang. Yunnan Geology 26, 404–10 (in Chinese with English summary).Google Scholar
Driesner, T. & Heinrich, C. A. 2007. The system H2O–NaCl. Part I: correlation formulae for phase relations in temperature–pressure–composition space from 0 to 1000 °C, 0 to 5000 bar, and 0 to 1 XNaCl. Geochimica et Cosmochimica Acta 71, 4880–901.Google Scholar
Einaudi, M. T., Meinert, L. D. & Newberry, R. J. 1981. Skarn deposits. Economic Geology 75th Anniversary Volume, 317–91.Google Scholar
Gao, W., Ye, L., Cheng, Z. T. & Yang, Y. L. 2011. Characteristics of isotope geochemistry of Hetaoping Pb-Zn ore in Baoshan,Yunnan Province,China. Acta Mineralogica Sinica 31, 578–86 (in Chinese with English summary).Google Scholar
Giggenbach, W. F. 2003. Magma degassing and mineral deposition in hydrothermal systems along convergent plate boundaries. In Volcanic, Geothermal and Ore-Forming Fluids: Rulers and Witnesses of Processes within the Earth (eds Simmons, S. F. & Graham, I.), pp. 1–18. Society of Economic Geologists Special Publication no. 10.Google Scholar
Goldstein, R. H. & Reynolds, T. J. 1994. Systematics of Fluid Inclusions in Diagenetic Minerals. Tulsa, Oklahoma, Society of Economic Paleontologists and Mineralogists. SEPM Short Course no. 31, 199 pp.Google Scholar
González-Partida, E. & Camprubí, A. 2006. Evolution of mineralizing fluids in the Zn–Pb–Cu(–Ag ± Au) skarn and epithermal deposits of the world-class San Martín district, Zacatecas, Mexico. Journal of Geochemical Exploration 89, 138–42.Google Scholar
Han, Y. W. 2010. A analysis on evolution of ore-forming fluids from the V1 orebody in the Hetaoping skarn Pb-Zn deposit, Baoshan,Yunnan province, SW China. Master Degree thesis, Kunming University of Science and Technology, Kunmin, China. Published thesis (in Chinese with English summary).Google Scholar
Hoefs, J. 1997. Stable Isotope Geochemistry, 4th edn. Berlin and Heidelberg: Springer-Verlag, 201 pp.Google Scholar
Kamvong, T. & Zaw, K. 2009. The origin and evolution of skarn-forming fluids from the Phu Lon deposit, northern Loei Fold Belt, Thailand: evidence from fluid inclusion and sulfur isotope studies. Journal of Asian Earth Science 34, 624–33.Google Scholar
Li, W. C. & Mo, X. X. 2001. The Cenozoic tectonics and metallogenesis in the ‘three-river’ area of southwest China. Yunnan Geology 20, 333–46 (in Chinese with English summary).Google Scholar
Li, D. X. & Zhao, Y. M. 2004. Skarn mineralization zonation and fluid evolution in the Jiaoli deposit, Jiangxi Province. Geological Review 50, 17–24 (in Chinese with English summary).Google Scholar
Lin, B. X., Deng, M. G., Sha, J. Z. & Liang, X. W. 2013. Discussion on the characteristics of texture and structure of ores and genesis of Luziyuan Pb-Zn-Fe polimetallic deposit in Zhenkang, Yunnan. Henan Science 31, 494–9 (in Chinese with English summary).Google Scholar
Liu, Y. S., Hu, Z. C., Gao, S., Günther, D., Xu, J., Gao, C. G. & Chen, H. H. 2008. In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard. Chemical Geology 257, 34–43.Google Scholar
Lü, C. L., Deng, M. G. & Hu, W. 2013. Study on metallogenic conditions and occurrence regularity of Luziyuan Pb-Zn deposit, Zhengkang Town, Yunnan Province. Contributions to Geology and Mineral Resources Research 28, 529–34 (in Chinese with English summary).Google Scholar
Megaw, P. K. M., Ruiz, J. & Titley, S. R. 1988. High-temperature, carbonate hosted Ag-Pb-Zn(Cu) deposits of northern Mexico. Economic Geology 83, 1856–85.Google Scholar
Meinert, L. D. 1987. Skarn zonation and fluid evolution in the Groundhog Mine, Central mining district, New Mexico. Economic Geology 82, 523–45.Google Scholar
Meinert, L. D., Dipple, G. M. & Nicolescu, A. S. 2005. World skarn deposits. Economic Geology 100th Anniversary Volume, 299–336.Google Scholar
Meinert, L. D., Hedenquist, J. W., Satoh, H. & Matsuhisa, Y. 2003. Formation of anhydrous and hydrous skarn in Cu-Au ore deposits by magmatic fluids. Economic Geology 98, 147–56.Google Scholar
Mo, X. X. & Pan, G. T. 2006. From the Tethys to the formation of the Qinghai-Tibet Plateau:constrained by tectono-magmatic events. Earth Science Frontiers 13, 43–51 (in Chinese with English summary).Google Scholar
Mohapatra, B. K. & Nayak, B. 2005. Petrology of Mn carbonate-silicate rocks from the Gangpur Group, India. Journal of Asian Earth Science 25, 773–80.Google Scholar
Mollai, H., Sharma, R. & Pe-Piper, G. 2009. Copper mineralization around the Ahar batholith, north of Ahar (NW Iran): evidence for fluid evolution and the origin of the skarn ore deposit. Ore Geology Reviews 35, 401–14.Google Scholar
Moura, A. 2008. Metallogenesis at the Neves Corvo VHMS deposit (Portugal): a contribution from the study of fluid inclusions. Ore Geology Reviews 34, 354–68.Google Scholar
Newberry, R. J. 1987. Use of intrusive and calc-silicate compositional data to distinguish contrasting skarn types in the Darwin polymetallic skarn district, California, USA. Mineralium Deposita 22, 207–15.Google Scholar
Ohmoto, H., Kaiser, C. J. & Geer, K. A. 1990. Systematic of sulfur isotopes in recent marine sediments and ancient sediment-hosted base metal deposits. In Stable Isotope and Fluid Processes in Mineralization, Perth, Australia (eds. Herbert, H. K. & Ho, S. E.), pp. 70–120. Geology Department and Extension Service, University of Western Australia, Special Publication no. 23.Google Scholar
Ohmoto, H. & Rye, R. O. 1979. Isotopes of sulfur and carbon. In Geochemistry of Hydrothermal Ore Deposits (ed. Barnes, R. D.), pp. 509–67. New York: John Wiley and Sons.Google Scholar
Palinkas, S. S., Palinkas, L. A., Renac, C., Spangenberg, J. E., Lueders, V. & Molnar, F. 2013. Metallogenic model of the Trepca Pb-Zn-Ag skarn deposit, Kosovo: evidence from fluid inclusions, rare earth elements, and stable isotope data. Economic Geology 108, 135–62.Google Scholar
Peter, K., Jaroslav, L., Andrew, H. R. & Anthony, E. F. 2004. Fluid evolution in a subvolcanic granodiorite pluton related to Fe and Pb-Zn mineralization, Banska Stiavnica Ore District, Slovakia. Economic Geology 99, 1745–70.Google Scholar
Robinson, B. W. & Kusakabe, M. 1975. Quantitative preparation of sulfur dioxide, for 34S/32S analyses, from sulfides by combustion with cuprous oxide. Analytical Chemistry 47, 1179–81.Google Scholar
Roedder, E. 1984. Fluid inclusions. Reviews in Mineralogy 12, 12–26.Google Scholar
Roedder, E. & Bodnar, R. J. 1980. Geologic pressure determinations from fluid inclusion studies. Annual Review of Earth & Planetary Sciences 8, 263–301.Google Scholar
Seghedi, I., Voica Bojar, A., Downes, H., Rosu, E., Tonarini, S. & Mason, P. 2007. Generation of normal and adakite-like calc-alkaline magmas in anon-subductional environment: an Sr-O-H isotopic study of the ApuseniMountains Neogene magmatic province, Romania. Chemical Geology 245, 70–88.Google Scholar
Sheppard, S. 1986. Characterization and isotopic variations in natural waters. Reviews in Mineralogy and Geochemistry 16, 165–83.Google Scholar
Shimizu, M. & Ilyama, J. T. 1982. Zinc-lead skarn deposits of the Nakatatsu mine, central Japan. Economic Geology 77, 1000–12.Google Scholar
Steele-Macinnis, M., Lecumberri-Sanchez, P. & Bodnar, R. J. 2012. Short note: HokieFlincs_H2O-NaCl: a Microsoft Excel spreadsheet for interpreting microthermometric data from fluid inclusions based on the PVTX properties of H2O-NaCl. Computers & Geosciences 49, 334–7.Google Scholar
Taylor, H. P. 1997. Oxygen and hydrogen isotope relationships in hydrothermal mineral deposits. Geochemistry of Hydrothermal Ore Deposits 3, 229–302.Google Scholar
Wilkinson, J. J. 2001. Fluid inclusions in hydrothermal ore deposits. Lithos 55, 229–72.Google Scholar
Williams-Jones, A. E., Samson, I. M., Ault, K. M., Gagnon, J. E. & Fryer, B. J. 2010. The genesis of distal zinc skarns: evidence from the Mochito Deposit, Honduras. Economic Geology 105, 1411–40.Google Scholar
Winter, G. A., Essene, E. J. & Peacor, D. R. 1981. Carbonates and pyroxenoids from the manganese deposit near Bald Knob, North Carolina. American Mineralogist 66, 278–89.Google Scholar
Xia, Q. L., Chen, Y. Q. & Lu, Y. X. 2005. Geochemistry, fluid inclusion, and stable isotope studies of Luziyuan Pb-Zn Deposit in Yunnan Province, southwestern China. Earth Science (Journal of China University of Geosciences) 30, 177–86 (in Chinese with English summary).Google Scholar
Xu, Q. & Mo, X. 2000. Regional fluid characters and regimes of ‘Sanjiang’ middle belt during Neo-Tethys. Acta Petrologica Sinica 16, 639–48 (in Chinese with English summary).Google Scholar
Xue, C. D., Han, Y. W., Huang, Q. H., Li, J. & Dong, X. G. 2011. Genesis and mineragenetic epoch of the Hetaoping Pb-Zn deposit in Baoshan area, Yunnan: a remote skarn-hydrothermal deposit. Acta Mineralogica Sinica S1, 415–18 (in Chinese with English summary).Google Scholar
Xue, C. D., Han, R. S. & Yang, H. L. 2008. Isotope geochemical evidence for ore-forming fluid resources in Hetaoping Pb-Zn deposit, Baoshan, northwestern Yunnan. Mineral Deposits 27, 243–52 (in Chinese with English summary).Google Scholar
Yang, X. F. & Luo, G. 2011. A tentative analysis of the ore-controlling factors of the Luziyuan lead-zinc deposit in Zhenkang area,Yunnan. Geological Bulletin of China 30, 1137–46 (in Chinese with English summary).Google Scholar
Yang, Y. L. 2013. A geochemical study on the Luziyuan skarn type Pb-Zn deposit in the Baoshan terrane, Yunnan,China. Master Degree thesis, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China. Published thesis (in Chinese with English summary).Google Scholar
Yang, Y. L., Ye, L., Cheng, Z. T. & Bao, T. 2013. Origin of fluids in the Hetaoping Pb-Zn deposit, Baoshan-Narong-Dongzhi block metallogenic belt, Yunnan Province, SW China. Journal of Asian Earth Science 73, 362–71.Google Scholar
Yang, Y. L., Ye, L., Cheng, Z. T., Bao, T. & Gao, W. 2012. A tentative discussion on the genesis of skarn Pb-Zn deposits in the Baoshan-Zhenkang terrane. Acta Petrologica et Mineralogica 31, 554–64 (in Chinese with English summary).Google Scholar
Ye, L., Bao, T. & Yang, Y. L. 2013. A discussion on geochemistry of Luziyuan Pb-Zn ploymetallic ore deposit, Zhenkang county, in the Bao-Shan terrane. Acta Mineralogica Sinica S1, 531 (in Chinese with English summary).Google Scholar
Ye, L., Cook, N. J., Ciobanu, C. L., Liu, Y. P., Zhang, Q., Liu, T. G., Gao, W., Yang, Y. L. & Danyushevskiy, L. 2011 a. Trace and minor elements in sphalerite from base metal deposits in South China:a LA-ICPMS study. Ore Geology Reviews 39, 188–217.Google Scholar
Ye, L., Gao, W., Cheng, Z. T., Yang, Y. L. & Tao, Y. 2010. LA-ICP-MS zircon U-Pb geochronology and petrology of the Muchang Alkali Granite, Zhenkang County, Western Yunnan Province, China. Acta Geologica Sinica – English Edition 84, 1488–99.Google Scholar
Ye, L., Yang, Y. L. & Bao, T. 2011 b. A preliminary study on metallogenesis of Hetaoping and Luziyuan skarn Pb-Zn deposit in the Baoshan terrane, Yunnan province. Acta Mineralogica Sinica S1, 659 (in Chinese with English summary).Google Scholar
Yun, S. & Einaudi, M. T. 1982. Zinc-lead skarns of the Yeonhwa-Ulchin district, South Korea. Economic Geology 77, 1013–32.Google Scholar
Zhao, Y. M., Dong, Y. G., Li, D. X. & Bi, C. S. 2003. Geology, mineralogy, geochemistry, and zonation of the Bajiazi dolostone-hosted Zn–Pb–Ag skarn deposit, Liaoning Province, China. Ore Geology Reviews 223,153–82.Google Scholar
Zhao, Z. F., Lu, Y. X. & Xie, Y. H. 2002. An example study of remote sensing and Gis metallogenetic prognosis in Luziyuan area, Zhenkang. Yunnan Geology 21, 300–7 (in Chinese with English summary).Google Scholar
Zheng, Y. F. 1993. Calculation of oxygen isotope fractionation in anhydrous silicate minerals. Geochimica et Cosmochimica Acta 57, 1079–91.Google Scholar
Zhu, Y. Y., Han, R. S. & Xue, C. D. 2006. Geological character of the Hetaoping lead zinc deposit of Baoshan,Yunnan province. Mineral Resources and Geology 20, 32–5 (in Chinese with English summary).Google Scholar