Ni-Mo-V-PGE Mineralization in the Lower Cambrian Black Shale Series from the Deze Area, Yunnan Province, Southwest China
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摘要: 云南省德泽地区筇竹寺组黑色岩系位于扬子陆块南缘下寒武统黑色页岩分布带的西端, 不同于该带中段湘黔地区的牛蹄塘组, 它发育有两个多金属富集层位, 其中, 石岩头段黑色碳质粉砂岩底部富集V、U、Ag和Pd, 玉案山段黑色页岩底部富集Mo、Ni、Pt和Pd.筇竹寺组黑色岩系整体上富集V-Ni-Mo-U-Ag-Pt-Pd, 而牛蹄塘组黑色岩系则富Ni-Zn-Co-Pt-Pd-Ag-Pb, 但它们都经历了相似的缺氧环境, 且具有相同的PGE和Ni、Mo富集机制, 是一种重要的非传统矿产资源类型.Abstract: The Qiongzhusi Formation black shale series of the Deze area are located in the western part of the Lower Cambrian black shale zone widely distributed along the southern margin of the Yangtze block, SW China. Different from the Niutitang Formation of black shale in Hunan and Guizhou provinces, the Qiongzhusi Formation contains two distinct metal-rich layers, with V, U, Ag and Pd enriched in the bottom of black carbonaceous siltstones of the lower Shiyantou Section, and Mo, Ni, Pt and Pd in the bottom of black shales of the Yu'anshan Section. In general, the Qiongzhusi Formation is characterized by the enrichment of V-Ni-Mo-U-Ag-Pt-Pd assemblages, whereas the Niutitang Formation is featured with the enrichment of Ni-Zn-Co-Pt-Pd-Ag-Pb association. However, both areas share similar depositional and diagenetic environment (oxegen-reduction) and have similar mechanism for Ni-Mo-PGE mineralization. Ni-Mo-V-PGE mineralization in black shale series is an unconventional type of mineral resources, and it is of great importance to the deposit study and mineral exploitation.
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图 3 德泽下寒武统筇竹寺组黑色页岩微量元素分布模式
Fig. 3. Distribution pattern of trace elements for the Qiongzhusi Formation black shale in the Deze area
图 4 筇竹寺组黑色岩系微量元素地幔标准化模式
Fig. 4. Mantle-normalized pattern for the Qiongzhusi Formation black shale series
图 5 筇竹寺组与牛蹄塘组岩性对比示意图
(牛蹄塘组黑色岩系柱状图据李胜荣和高振敏, 1995)
Fig. 5. Lithological correlation between the Qiongzhusi Formation and Niutitang Formation
表 1 德泽地区下寒武统筇竹寺组黑色岩系微量元素平均含量
Table 1. Trace element average contents of the Qiongzhusi Formation black shale series in the Deze area
表 2 成矿元素及部分常量元素在下寒武统不同类型岩石中的平均含量
Table 2. Some main and metallogenic element average contents of various rocks at Lower Cambrian
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[1] Chen, Y. Q., Xia, Q. L., Liu, H. G., 2003. Geochemical characteristics of the platinum-Pd-Cu-bearing formations in the eastern Yunnan Province and analyses on their ore-forming possibility. Geology in China, 30 (3): 225-234 (in Chinese with English abstract). [2] Coveney, J. R. M., Nan, S., 1991. Ni-Mo-PGE-Au-rich ores in Chinese black shales and speculations on possible analogues in the United States. Mineral Deposita, 26: 83-88. doi: 10.1007/BF00195253 [3] Fan, D. L., Ye, J., Yang, R. Y., et al., 1987. The geological events and ore mineralization nearby the Precambrian-Cambrian boundary in Yangtze platform. Acta Sedimentologica Sinica, 5 (3): 81-95 (in Chinese with English abstract). [4] Fan, D. L., Zhang, T., Ye, J., et al., 2000. Supperlarge deposits related to black shale. In: Tu, G. Z., ed., Supperlarge deposits in China (Ⅰ). Science Press, Beijing, 204-218 (in Chinese). [5] Fan, D. L., Zhang, T., Ye, J., et al., 2004. Black rock series and its′ mineral deposits in China. Science Press, Beijing, 76-135 (in Chinese). [6] Li, S. R., Gao, Z. M., 1995. REE characteristics of black rock series of the Lower Cambrian Niutitang Formation in Hunan-Guizhou Province, China, with a discussion on the REE patterns in marine hydrothermal sediments. Acta Mineralogica Sinica, 15 (2): 225-229 (in Chinese with English abstract). [7] Li, S. R., Gao, Z. M., 2000. Trace on the original sources of precious metal elements of black rock series of Lower Cambrian in Hunan-Guizhou Provinces, China. Science in China (Ser. D), 30 (2): 169-174 (in Chinese). [8] Li, S. R., Xiao, Q. Y., Shen, J. F., et al., 2002. The original sources of platinum group elements and mineralization age of Re-Os isotope restricted of Lower Cambrian in Hunan-Guizhou Province, China. Science in China (Ser. D), 32 (7): 568-575 (in Chinese). [9] Liu, B. J., Xu, X. S., Pan, X. N., et al., 1993. The evolution and mineralization of sedimentary crust of south paleo-continent, China. Science Press, Beijing (in Chinese). [10] Mao, J. W., Lehmann, B., Du, A. D., et al., 2002. Re-Os dating of polymetallic Ni-Mo-PGE-Au mineralization in Lower Cambrian black shales of South China and its geologic significance. Economic Geology, 97: 1051-1061. doi: 10.2113/gsecongeo.97.5.1051 [11] PaŠava, J., 1991. Comparison between the distribution of PGE in black shales from the Bohemian Massif (CSFR) and other black shale occurrences. Mineral Deposita, 26: 99-103. doi: 10.1007/BF00195255 [12] PaŠava, J., Sarah, J., Vymazalová, A., 2003. The use of mantle normalization and metal ratios in the identification of the sources of platinum-group elements in various metal-rich black shales. Mineralium Deposita, 38: 775-783. doi: 10.1007/s00126-003-0366-z [13] Ponavic, M., PaŠava, J., Anna, V., et al., 2004. Impact of Lower Cambrian black shales and exploited Mo-Ni black shale-hosted deposits on the trace element composition of soils and crop plants in the Zunyi region, Guizhou Province, South China. 32nd IGC. [14] Wedepohl, K. H., 1995. The composition of the continental crust. Geochimica et Cosmochimica Acta, 59 (7): 1217-1232. doi: 10.1016/0016-7037(95)00038-2 [15] Wilde, A., Edwards, A., Yakubchuk, A., 2003. Unconventional deposits of Pt and Pd: A review with implications for exploration. SEG Newsletter, 52: 1, 9-18. https://www.researchgate.net/publication/274721851_Unconventional_Deposits_of_Pt_Pd_A_Review_with_Implications_for_Exploration [16] Xia, Q. L., Zhao, P. D., Chen, Y. Q., 2003. Platinum and palladium geochemical exploration and anomaly evaluation, eastern Yunnan Province, China. Geological Bulletin of China, 22 (9): 704-707 (in Chinese with English abstract). https://www.researchgate.net/publication/248577748_Platinum_and_Palladium_in_Coal_Rock_and_Geochemical_Anomaly_in_Eastern_Yunnan_Province_Southwest_China [17] Yang, J. L., Xu, S. Q., Xiao, S. Y., et al., 1995. Sequence division of Cambrian System of the boundary area among Sichuan, Guizhou and Hunan Provinces. Earth Science—Journal of China University of Geosciences, 20 (5): 485-495 (in Chinese with English abstract). [18] Zhang, A. Y., Wu, D. M., Guo, L. N., et al., 1987. Geochemistry and minerogenic significance of marine black shale. Science Press, Beijing (in Chinese). [19] Zhang, G. D., Mao, J. W., Xiong, Q. Y., 2001. The present situation and prospects of platinum metals resources in China. Acta Geoscientia Sinica, 22 (2): 107-110 (in Chinese with English abstract). [20] 陈永清, 夏庆霖, 刘红光, 2003. 滇东Pt-Pd-Cu含矿建造地球化学特征及其含矿性分析. 中国地质, 30 (3): 225-234. doi: 10.3969/j.issn.1000-3657.2003.03.001 [21] 范德廉, 叶杰, 杨瑞英, 等, 1987. 扬子地台前寒武—寒武纪界线附近的地质事件与成矿作用. 沉积学报, 5 (3): 81-95. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB198703010.htm [22] 范德廉, 张涛, 叶杰, 等, 2000. 与黑色岩系有关的超大型矿床. 见: 中国超大型矿床(I). 涂光炽著. 北京: 科学出版社, 204-218. [23] 范德廉, 张涛, 叶杰, 等, 2004. 中国的黑色岩系及其有关矿床. 北京: 科学出版社, 76-135. [24] 李胜荣, 高振敏, 1995. 湘黔地区牛蹄塘组黑色岩系稀土特征——兼论海相热水沉积岩稀土模式. 矿物学报, 15 (2): 225-229. doi: 10.3321/j.issn:1000-4734.1995.02.017 [25] 李胜荣, 高振敏, 2000. 湘黔寒武系底部黑色岩系贵金属元素来源示踪. 中国科学(D辑), 30 (2): 169-174. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200002008.htm [26] 李胜荣, 肖启云, 申俊峰, 等, 2002. 湘黔下寒武统铂族元素来源与矿化年龄的Re-Os同位素制约. 中国科学(D辑), 32 (7): 568-575. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200207004.htm [27] 刘宝珺, 许效松, 潘杏南, 等, 1993. 中国南方古大陆沉积地壳演化与成矿. 北京: 科学出版社. [28] 夏庆霖, 赵鹏大, 陈永清, 2003. 滇东铂、钯地球化学勘查及异常评价. 地质通报, 22 (9): 704-707. doi: 10.3969/j.issn.1671-2552.2003.09.013 [29] 杨家 [30] 张爱云, 伍大茂, 郭丽娜, 等, 1987. 海相黑色页岩建造地球化学与成矿意义. 北京: 科学出版社. [31] 张光弟, 毛景文, 熊群尧, 2001. 中国铂族金属资源现状与前景. 地球学报, 22 (2): 107-110. doi: 10.3321/j.issn:1006-3021.2001.02.003 -
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