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云南富宁地区两期基性岩对者桑金矿成矿贡献——来自年代学制约
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Abstract:
基性岩对卡林型金矿成矿起着至关重要的作用，不仅为其提供物质来源还提供形成所需的环境。早期基性岩为卡林型金矿提供环境，晚期基性岩提供成矿物质。本文主要针对云南富宁者桑金矿的早晚两期基性岩的岩石学、锆石U-Pb年代学进行研究，并与利用年代学来探讨两期基性岩的源区特征和成因机制，分析两期基性岩对金矿化的影响，建立该区卡林型金矿的成矿模式。
Basic rocks play an important role in the mineralization of Carlin type gold deposits, not only providing material sources but also providing the necessary environment for their formation. The early basic rocks provide the environment for Carlin type gold deposits, while the late basic rocks provide the minerals. This paper mainly studies the petrology and zircon U-Pb chronology of the early and late basic rocks of Zhesang gold deposit in Funing, Yunnan, and discusses the source characteristics and genetic mechanism of the two basic rocks by using chronology, analyzes the impact of the two basic rocks on gold mineralization, and establishes the metallogenic model of the Carlin type gold deposit in this area.
| [1] | 李献华, 胡瑞忠, 饶冰. 粤北白垩纪基性岩脉的年代学和地球化学[J]. 地球化学, 1997, 26(2): 14-31. |
| [2] | Xu, H.J., Ma, C.Q., Song, Y.R., et al. (2012) Early Cretaceous Intermediate-Mafic Dykes in the Dabie Orogen, Eastern China: Petrogenesis and Implications for Crust-Mantle Interaction. Lithos, 154, 83-99.
https://doi.org/10.1016/j.lithos.2012.06.030 |
| [3] | 葛小月, 李献华, 周汉文. 琼南晚白垩世基性岩墙群的年代学、元素地球化学和Sr-Nd同位素研究[J]. 地球化学, 2003, 32(1): 11-20. |
| [4] | Xiong, F.H., Ma, C.Q., Jiang, H.A., et al. (2014) Geochronology and Geochemistry of Middle Devonian Mafic Dykes in the East Kunlun Orogenic Belt, Northern Tibet Plateau: Implications for the Transition from Prototethys to Paleotethys or Ogeny. Geochemistry, 74, 225-235. https://doi.org/10.1016/j.chemer.2013.07.004 |
| [5] | Zhang, D., Zhao, K.D., Chen, W., et al. (2018) Early Jurassic Mafic Dykes from the Aigao Uranium Ore Deposit in South China: Geochronology, Petrogenesis and Relationship with Uranium Mineralization. Lithos, 308-309, 118-133.
https://doi.org/10.1016/j.lithos.2018.02.028 |
| [6] | 胡瑞忠, 毕献武, 苏文超, 等. 华南白垩.第三纪地壳拉张与铀成矿的关系[J]. 地学前缘, 2004, 11(1): 153-160. |
| [7] | 方福康, 乔树岩, 田源, 等. 新疆巴尔鲁克西段基性-超基性岩带中金矿找矿潜力分析[J]. 西北地质, 2015, 48(3): 314-324. |
| [8] | 谢贵明. 基性-超基性岩与金矿[J]. 黄金科技动态, 1992(2): 19-20. |
| [9] | Nie, F.J., Jiang, S.H., Hou, W.R., et al. (2010) Geological Features and Genesis of Gold Deposits Hosted by Low-Grade Metamorphic Rocks in Central-Western Inner Mongolia. Mineral Deposits, 29, 58-70. |
| [10] | 杨敏之, 黄国君. 胶东乳山钠长浅粒岩型金矿床地质地球化学研究[J]. 地质找矿论丛, 1992, 7(2): l-14. |
| [11] | 翟建平, 徐光平, 胡凯. 栖霞金矿矿物、流体和同位素特征及意义[J]. 矿床地质, 1998, 17(4): 307-313 |
| [12] | 阎凤增, 齐金忠, 郭俊华. 甘肃省阳山金矿地质与勘查[M]. 北京: 地质出版社, 2010. |
| [13] | Chen, M., Mao, J., Li, C., et al. (2015) Re-Os Isochron Ages for Arsenopyrite from Carlin-Like Gold Deposits in the Yunnan-Guizhou-Guangxi “Golden Triangle”, South Western China. Ore Geology Reviews, 64, 316-327.
https://doi.org/10.1016/j.oregeorev.2014.07.019 |
| [14] | Chen, J.H., Li, Y.Q. and Zhao, C.H. (2014) First Principles Study of the Occurrence of Gold in Pyrite. Computational Materials Science, 8, 1-6. https://doi.org/10.1016/j.commatsci.2014.02.033 |
| [15] | Hu, R.Z., Su, W.C., Xia, B., et al. (2002) Geology and Geochemistry of Carlin-Type Gold Deposits in China. Mineralium Deposita, 37, 378-392. https://doi.org/10.1007/s00126-001-0242-7 |
| [16] | 张建强, 王平, 窦世荣, 等. 云南省富宁县者桑金矿(阶段性)生产勘查报告[R]. 2008, 1-14. |
| [17] | 章永梅, 顾雪祥, 摆祥, 等. 云南富宁者桑金矿床硫铅同位素地球化学特征与成矿物质来源[J]. 地学前缘, 2013, 20(1): 32-39. |
| [18] | 李杰, 梁细荣, 董彦辉, 等. 利用多接收器电感耦合等离子体质谱仪(MC-ICPMS)测定镁铁-超镁铁质岩石中的铼-锇同位素组成[J]. 地球化学, 2007(2): 153-160. |
| [19] | 谢建成, 杨晓勇, 杜建国, 等. 铜陵地区中生代侵入岩LA-ICP-MS锆石U-Pb年代学及Cu-Au成矿指示意义[J]. 岩石学报, 2008, 24(8): 1782-1800. |
| [20] | 皮桥辉, 胡瑞忠, 彭科强, 等. 云南富宁者桑金矿床与基性岩年代测定-兼论滇黔桂地区卡林型金矿成矿构造背景[J]. 岩石学报, 2016, 32(11): 3331-3342. |
| [21] | Hoskin, P.W.O. and Black, L.P. (2000) Metamorphic Zircon Formation by Solid-State Recrystallization of Protolith Igneous Zircon. Journal of Metamorphic Geology, 18, 423-439. https://doi.org/10.1046/j.1525-1314.2000.00266.x |
| [22] | Yan, D.P., Zhou, M.F., Song, H.L., et al. (2003) Origin and Tectonic Significance of a Mesozoic Multi-Layer Over-Thrust within the Yangtze Block (South China). Tectonophysics, 361, 239-254.
https://doi.org/10.1016/S0040-1951(02)00646-7 |
| [23] | 代鸿章, 陈翠华, 顾雪祥, 等. 云南者桑金矿床载金矿物标型特征研究[J]. 矿床地质, 2014, 33(1): 70-86. |
| [24] | 潘光松, 胡桂明, 向群, 林芳. 云南富宁者桑金矿控矿条件及找矿方向分析[J]. 贵州地质, 2014, 31(3): 190-194. |
| [25] | Li, Q., Santosh, M., Li, S.R., et al. (2015) Petrology, Geochemistry and Zircon U-Pb and Lu-Hf Isotopes of the Cretaceous Dykes in the Central North China Craton: Implications for Magma Genesis and Gold Metallogeny. Ore Geology Reviews, 67, 57-77. https://doi.org/10.1016/j.oregeorev.2014.11.015 |
| [26] | Shen, J.F., Li, S.R., Santosh, M., et al. (2013) He-Ar Isotope Geochemistry of Iron and Gold Deposits Reveals Heterogeneous Lithospheric Destruction in the North China Craton. Journal of Asian Earth Sciences, 78, 237-247.
https://doi.org/10.1016/j.jseaes.2013.04.004 |
| [27] | Shen, J.F., Santosh, M., Li, S.R., et al. (2013) The Beiminghe Skarn Iron Deposit, Eastern China: Geochronology, Isotope Geochemistry and Implications for the Destruction of the North China Craton. Lithos, 156-159, 218-229.
https://doi.org/10.1016/j.lithos.2012.11.003 |
| [28] | Li, L., Santosh, M., and Li, S.R. (2015) The “Jiaodong Type” Gold Deposits: Characteristics, Origin and Prospecting. Ore Geology Reviews, 65, 589-611. https://doi.org/10.1016/j.oregeorev.2014.06.021 |
