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Geoscience ›› 2018, Vol. 32 ›› Issue (06): 1283-1291.DOI: 10.19657/j.geoscience.1000-8527.2018.06.16

• Ore Deposits • Previous Articles     Next Articles

The Ore-forming Material of the Erdaogou Gold Deposit in West Liaoning Province: Evidence from S-Pb Isotopes

NIE Fei1(), LIU Shusheng1, DONG Guochen2(), CHEN Yongchang3, WANG Peng2   

  1. 1. Chengdu Center, China Geological Survey, Chengdu, Sichuan 610081, China
    2. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
    3. Erdaogou Gold Mining Co. Ltd, Chaoyang, Liaoning 122100, China
  • Received:2018-03-21 Revised:2018-10-15 Online:2018-12-10 Published:2018-12-20

Abstract:

The Erdaogou gold deposit in West Liaoning Province is located in the middle segment of north margin of North China Craton. The mineralization type is quartz vein type, and the occurrence of ore vein is controlled by fault. In this paper we study S and Pb isotopes in detail on the typical quartz vein to discuss the ore-forming material source. The δ34S values of the total S isotope for the ore-forming hydrothermal fluids are quite similar to those of the mantle, suggesting that the sulfur of the ore-forming hydrothermal solution was derived from hypomagma. The 206Pb/204Pb, 207Pb/204Pb and 208Pb/204Pb values of ores range from 17.047 to 17.292, 15.319 to 15.555 and 36.991 to 37.855, respectively, suggesting that the ore lead was from mantle and lower crust. The S and Pb isotope values are similar to those of the rocks of Xiduimiangou, so we deduce that the sources of ore-forming material are strongly associated with the Xiduimiangou rock (or this magmatism). All the evidences support that metallogenic materials were derived from hypomagma.

Key words: sulfur and lead isotopes, ore-forming material, Erdaogou gold deposit, West Liaoning Province

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