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Gold Science and Technology ›› 2016, Vol. 24 ›› Issue (6): 57-63.doi: 10.11872/j.issn.1005-2518.2016.06.057

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MO Jinglong1，2，ZHANG Shugen1，2，LI Kailin1，2，HU Jie1，2，ZHENG Muting1，2#br#   

  1. 1.Key Laboratory of Metallogenic Prediction of Nonferrous Metals，Ministry of Education，Central South University，Changsha    410083，Hunan，China；
    2.School of Geoscience and Info-Physics，Central South University，Changsha    410083，Hunan，China
  • Received:2016-06-28 Revised:2016-08-05 Online:2016-12-28 Published:2017-01-22

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Abstract:

Subjected to complex topographic condition and geological tectonic pattern，stratigraphic division，distribution and correlation with gold mineralization were in hot debate in Xinshan gold deposit of Yunnan Province Dongchuan area.The previously established Heishan formation and Luoxue formation dolomite in the gold belt of Xinshan mining area，is actually Pingdingshan group dolomitiztion altered sandstone，recrystallized sandy limestone，calcareous slate and silty slate，upon the foundation of geological section，geological and geochemical profile，rock-mineral identification and test analysis in the vicinity of the gold mineralizing belt.Through the following evidence demonstrated that formation （including stratigraphic and lithologic formations） is closely related to the mineralization of gold deposits：analysis of the ore bearing strata，clustering analysis of metallogenic elements，comparison of ore bearing properties of regional strata，ore bearing characteristics of strata，physical and chemical properties of rocks.The middle-upper horizons of Pingdingshan Group and the lower horizon of the Yinmin Group are the main ore bearing layer of gold mineralization，and they are also important suppliers of ore-forming material of Xinshan gold deposits.The study of the relationship between strata and mineralization has an important guiding significance for futher prospecting in Xinshan gold deposit.

Key words: gold occurrence stratigraphic horizon, formation characteristic, mineralization, Xinshan gold deposit, Yunnan Province

CLC Number: 

  • P618.51

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