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Source and location mechanism for lode gold deposits hosted in metamorphic rocks in northeastern Hunan, China

  • Liu Liang-ming 
  • Peng Sheng-lin 
  • Yang Qun-zhou 
Article

Abstract

For understanding the source and location mechanism of lode gold deposits hosted in metamorphic rocks in northeastern Hunan, the authors analyzed the REE (rare earth elements) in ores and their host rocks, metallogenic elements in host rocks near and distant from the ore-bodies, and characteristics of ore-controlling structures, and deduced their genetic implication. Their geochemical features of REE and metallogenic elements suggest that they are formed by mobilization of dispersed metallogenic materials in Lengjiaxi Group of Middle Proterozoic during deformation and metamorphism process, mainly in Wulingian period. From the attributes of ore-controlling structures and regularity of location of gold metallization, it is concluded that the location of gold deposits is closely related to reverse shearing. Ore-forming fluids are focused on the secondary faults and extension fractures of reverse shear zones of nearly EW strike by stress-driven diffusion and seismic pumping.

Key words

lode gold deposit location fluid focus seismic pump northeastern Hunan 

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Copyright information

© Central South University 2001

Authors and Affiliations

  • Liu Liang-ming 
    • 1
  • Peng Sheng-lin 
    • 1
  • Yang Qun-zhou 
    • 1
  1. 1.College of Resources, Environment and Civil EngineeringCentral South UniversityChangshaChina

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