A study on the genetic relations between Permian Longtan Formation coal series strata and Carlin-type gold deposits, southwestern Guizhou Province, China

详细信息    查看全文

• 作者：Aiguo Nie (1)
  Shiquan Mei (1)
  Daiyun Guan (2)
  Pan Wu (1)
  Zhuru Zhang (1)
  
• 关键词：coal series strata of the Longtan Formation ; Carlin ; type gold deposit ; genetic relation ; southwestern Guizhou Province
• 刊名：Chinese Journal of Geochemistry
• 出版年：2008
• 出版时间：September 2008
• 年：2008
• 卷：27
• 期：3
• 页码：291-298
• 全文大小：399KB
• 参考文献：1. Bostrom K. (1983) Genesis of ferromagnese deposits-diagenetic criteria for recent and old deposits. In / Hydrothermal Processes at Seafloor Spreading Centers (ed. P.A. Rena et al.) [M]. pp.473鈥?89. Press N.Y. New York.
  2. Bostrom K. and Joensuu O. (1979) Langban鈥擜n exhalative sedimentary deposit? [J]. / Economic Geology. 74, 1002鈥?011. CrossRef
  3. Cao Hongshui (1991) The forming environment of the 鈥淒achang Bed鈥?and its metallogenesis鈥擜 discussion [J]. / Geology of Guizhou Province. 8, 5鈥?2 (in Chinese with English abstract).
  4. Feng Zhengzhao, He Youbing, and Wu Shenghe (1991) Lithofacies and Palaeogeographic map in middle and low Yangzi area of China [M]. Geological Press, Beijing (in Chinese).
  5. Geological Department of Nanjing University (1979) / Geochemistry [M]. Science Press, Beijing (in Chinese).
  6. Han Zhijun, Wang Yangeng, and Feng Jizhou (1999) Geology and Exploration of Sedimentary-Rock-Hosted Disseminated Gold Deposits in Southwestern Guizhou [M]. Guizhou Science and Technology Press, Guiyang (in Chinese).
  7. Lin Caoying (1996) Discussion on gold-containing property of 鈥淒a-Chang Stratum鈥?of Southwest Guizhou [J]. / GOLD. 17, 12鈥?5 (in Chinese with English abstract).
  8. Nan Junya, Liu Congqiang, Zhou Dequan, Wang Zhuming (2002) REE geochemical study of the Permian-Triassic marine sedimentary environment in Guizhou Province [J]. / Chinese Journal of Geochemistry. 21, 348鈥?61. CrossRef
  9. Nie Aiguo and Xie Hong (2004) A research on origin between Emeishan basalt magma and high-As coal in Guizhou [J]. / Coal Geology & Exploration. 32, 8鈥?0 (in Chinese with English abstract).
  10. Nie Aiguo and Xie Hong (2006) A study on Emei mantle plume activity and the origin of high-As coal in southwestern Guizhou Province [J]. / Chinese Journal of Geochemistry. 25, 238鈥?44.
  11. Niu Shuyin, Luo Dianwen, Ye Donghu, Li Hongyang, and Wang Jinsuo (1996) / Mantle-Branch Structure and Its Mineraliaztion in North China [M]. Geological Press, Beijing (in Chinese).
  12. Strahov H..T. (1976) / The Problem of Geochemistry of Contemporary [Okeanogo] Lithogenesis [M]. pp.1鈥?98. Publ. 鈥淪cience鈥? Moscow (in Russia).
  13. Xu Bingbing and He Mingde (2002) / Coalfield Geology in Guizhou [M]. China Mine University Press, Xuzhou (in Chinese).
  14. Yu Suyu (1989) / Carbonated rock Microfacies of Fossils [M]. Geological Press, Beijing (in Chinese).
  
• 作者单位：Aiguo Nie (1)
  Shiquan Mei (1)
  Daiyun Guan (2)
  Pan Wu (1)
  Zhuru Zhang (1)
  
  1. College of Resource and Environment Engineering, Guizhou University, Guiyang, 550003, China
  2. Limestone Mine of Guizhou Branch China Alumiium, Guiyang, 550014, China
  
• ISSN：1993-0364

文摘

A large number of the Carlin-type gold deposits occur in the Longtan Formation in southwestern Guizhou Province. The Longtan Formation contains abundant basalt, tuff and siliceous rocks. All rocks of the Longtan Formation are enriched in gold, which were deposited in a limited platform environment in the transition zone from marine to continental. The process of sedimentation was accompanied by the eruption of Emeishan basalt and hydrothermal deposition controlled by co-sedimentary submarine deep faults in the west, which led to the formation of a peculiar gold-bearing formation with coal series strata. This formation controlled the occurrence of the Carlin-type gold deposits in southwestern Guizhou Province. In response to the remobilization of the Emei mantle plume during the Yanshanian period, As, Au and other ore-forming materials were continuously extracted by deeply circulating waters from the Emeishan basalt and coal seams, thereafter forming ore-forming hydrothermal solutions. When these elements were transported in the coal seams, large amounts of As, Au and other elements were enriched in pyrite within the coal seams, thus forming high-As coal and Carlin-type gold deposits in the Longtan Formation coal series strata.