Welcome to Metal Mine! Today is Share:
×

扫码分享

Metal Mine ›› 2016, Vol. 45 ›› Issue (11): 113-118.

Previous Articles     Next Articles

Geological Characteristics and Prospecting Indicator of Sb Deposit in Anhua-Taojiang Area,Hunan Province

Fu Shengyun1,Deng Lei1,Tang Fenpei1,Shen Changming2,Tan Shengjie1,Zhang Hui1,Li Dajiang1   

  1. 1.Hunan Institute of Geological Survey,Changsha 410116,China;2.Hunan Institute of Non-ferrous Geological Prospecting,Changsha 410015,China
  • Online:2016-11-15 Published:2017-02-15

Abstract: Anhua-Taojiang area is located in middle-east segment of Xuefeng arcuate structural belt,the scope of Sb geochemical anomaly area is large,and the anomaly peak value is high,the Sb metallogenic geological condition is favourable.Based on the geological prospecting results of the area,the geological characteristics,isotope geochemical characteristics and Sb geochemical anomaly characteristics and ore-controlling factors of the Sb deposits are analyzed,the deposits genesis types are classified,besides that,the prospecting indicators are summarized and the prospecting is discussed.The study results show that:①the Sb deposit types are Woxi type stratabound hydrothermal type W-Sb-Au deposit,Banxi type quartz vein type Sb deposit,the deposits are mainly hosted in the shallow metamorphic rock mass of the Lengjiaxi group and Banxi group of precambrian,the above deposits are mainly hosted in the clastic rock and carbonate rock of Nanhua period-Silurian and Carboniferous;②the Sb deposits are mostly distributed in the intersection area of the anticline and secondary fracture that is located in the side of the regional large fractures,the distribution of Au-Sb metallogenic belts are controlled by the deep fractures,the ore-bodies are originated from the NW,NE,nearly EW,NNW and NNE set of secondary fractures;③the deposits positioning is controlled by the plunging sides of anticline and anticline overally,the ore-bodies are controlled by the secondary folds,fractures,inter-layer fracture zones and plunging sides;④the little rock strain,felsic vein rock with the characteristics of hypabyssal and acidic in the working area can be regareded as the prospecting indicators of Au-Sb deposit,when Sb anomaly is closly related to Hg,As anomalies,it is good for prospecting,combination of prospecting work can be conducted based on Au,As (realgar and orpiment) and Hg deposits.The above analysis results can provide some reference for the study of metallogenic regularities and the foundation of new mineralization points.

Key words: Sb deposit, Geological characteristics, Geochemical characteristics, Ore-controlling factors, Deposit genesis, Prospecting indicator