Metallogenic Characteristics of Barite and Witherite of the Barium Metallogenic Belt in Southern Qinling Mountains

Abstract

Abstract:

More than 70 witherite and barite deposits (or points) are located in Southern Qinling Mountains, which is a unique large Ba metallogenic belt in the world. By microthermometry analysis, the peak of fluid inclusions homogeneous temperature has a increasing trend from barite to witherite. The δ³⁴S values of barite of the deposits are higher than those of the same period water of ocean basin (except one δ³⁴S value of barite of Wenyu deposit, which is close to those of the same period water of ocean basin),which shows that the ³⁴S enrichment in barite could be due to the reduction from germs to sulfate.Witherite deposits of Southern Qinling exist different ranges of δ¹³C and δ¹⁸O value, and C of witherite comes from reaction of organic matter.According to thermodynamics data, temperatue below 162.42 ℃ is favourable to forming barite ore;when temperature is over 162.42 ℃, and there is enough CO₃^2- (from reaction of organic matter), it is favourable to forming witherite in sea water.In the late period of forming barite deposits,if Ba²⁺ appears deficient in hydrotherm, and CO₃^2- (from reaction of organic matter)is enough and temperature is over 16242 ℃ in sea water,CO₃^2- will metasomate the SO₄^2- of barite to form metasomatic type witherite.

Key words: Southern Qinling, barite, witherite, fluid inclusion, S, C and O stable isotope

CLC Number:

P619.25⁺1

TUN Qing-Hua, LIU Jia-Jun, ZHANG Nai, LIU Zhen-Jiang. Metallogenic Characteristics of Barite and Witherite of the Barium Metallogenic Belt in Southern Qinling Mountains[J]. Geoscience, 2010, 24(2): 237-244.

References

［1］刘家军, 柳振江, 杨艳, 等. 南秦岭大型钡成矿带有机地球化学特征与生物标示物研究 \[J\]. 矿物岩石, 2007, 27 (3): 39-49.
［2］刘家军, 杨丹, 柳振江, 等. 南秦岭大型钡成矿带中硫钒铜矿的特征及成因意义 \[J\]. 矿物岩石, 2008, 28 (2): 44-50.
［3］Clarka S H B, Poole F G, Wang Z C. Comparison of some sedimenthosted, stratiform barite deposits in China, the United States, and India \[J\]. Ore Geology Reviews, 2004, 24 (1/2): 85-101.
［4］夏学惠, 赵玉海. 秦巴地区毒重石-重晶石矿床地质及成矿远景分析 \[J\]. 化工矿床地质, 2005, 27 (4): 201-202.
［5］Ohmoto H. Stable isotope geochemistry of ore deposits \[J\]. Reviews in Mineralogy,1986, 16 (1): 491-559.
［6］王忠诚, 储雪蕾, 李仲. 高δ34S值重晶石矿床的成因解释 \[J\]. 地质科学, 1993, 28 (2): 191-192.
［7］Goldberg T, Mazumdar A, Strauss H. Insights from stable S and O isotopes into biogeochemical processes and genesis of Lower Cambrian barite-pyrite concretions of South China \[J\]. Organic Geochemistry, 2006, 37 (10): 1278-1288.
［8］Habicht K S, Canfield D E. Sulfur isotope fractionation during bacterial sulfate reduction in organicrich sediments \[J\]. Geochimica et Cosmochimica Acta, 1997, 61(24): 5351-5361.
［9］刘家军, 吴胜华, 柳振江, 等. 扬子地块北缘大型钡成矿带中硫同位素组成及其意义 \[J\]. 矿物岩石地球化学通报, 2008, 27 (3): 267-275.
［10］Blattner P, Cooper A F. Carbon and oxygen isotopic composition of carbonatite dikes and metamorphic country rock of the haast schist terrain, New Zealand \[J\]. Contributions to Mineralogy and Petrology, 1974, 44 (1): 17-27.
［11］Lü Zhicheng, Liu Congqiang, Liu Jiajun, et al. Carbon, oxygen and boron isotopic studies of Huangbaishuwan witherite deposit at Ziyang and Wenyuhe witherite deposit at Zhushan \[J\]. Science in China (Series D), 2003, 46 (12): 1274-1292.
［12］McQuay E L, Torres M E, Collier R W, et al. Contribution of cold seep barite to the barium geochemical budget of a marginal basin \[J\]. DeepSea Research I, 2008, 55 (6): 801-811.
［13］Snyder G T, Dickens G R, Castellini D G. Labile barite contents and dissolved barium concentrations on Blake Ridge: new perspectives on barium cycling above gas hydrate systems \[J\]. Journal of Geochemical Exploration, 2007, 95 (1/3): 48-65.
［14］Marchev P, Downes H, Thirlwall M F, et al. Smallscale variations of 87Sr/86Sr isotope composition of barite in the Madjarovo lowsulphidation epithermal system, SE Bulgaria:implications for sources of Sr, fluid fluxes and pathways of the oreforming fluids \[J\]. Mineralium Deposita, 2002, 37 (6/7): 669-677.
［15］Whitford D J, Korsch M J, Solomon M. Strontium isotope studies of barites: implications for the origin of base metal mineralization in Tasmania \[J\]. Economic Geology, 1992, 87 (3): 953-959.
［16］王忠诚, 储雪蕾. 早寒武世重晶石与毒重石的锶同位素比值 \[J\]. 科学通报, 1993, 38 (16): 1491-1492.
［17］宣之强. 我国重晶石矿床成因及成矿远景综述 \[J\]. 化工矿产地质, 1999, 21 (1): 25-30.
［18］王明华, 徐端军, 周永秋, 等. 普通化学 \[M\]. 北京: 高等教育出版社, 2003:105-150.
［19］RendnAngeles J C, MatamorosVeloza Z, LpezCuevas J, et al. Stability and direct conversion of mineral barite crystals in carbonated hydrothermal fluids \[J\]. Journal of Materials Science, 2007, 43 (7): 2189-2197.
［20］涂怀奎. 秦巴山区钡矿床分带初步研究 \[J\]. 甘肃地质学报, 1999, 8 (2): 54-56.
［21］方维萱. 秦岭造山带古热水场地球化学类型及流体动力学模型探讨 \[J\]. 西北地质科学, 1999, 20 (2): 17-27.
［22］Maynard J B, Okita P M. Bedded barite deposits in the United States, Canada, Germany, and China:two major types based on tectonic setting \[J\]. Economic Geology, 1991, 86 (2): 364-376.

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Metallogenic Characteristics of Barite and Witherite of the Barium Metallogenic Belt in Southern Qinling Mountains

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