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Fractal feature of western fracture zone in Xikuangshan antimony mine and its geological significance

  • Tang Shi-jia 
  • Gao Guang-ming 
  • Peng En-sheng 
  • Sun Zhen-jia 
Materials, Mining And Chemical Engineering And Geology

Abstract

In Xikuangshan antimony ore-field, the western fracture zone is a composite of major fault, F75, and its secondary faults, such as F71, F72 and F3 etc.. On plane, the fracture zone scatters from southwest to northeast, and concentrates from upper to deeper level on profile. All ore-bodies exist in the carbonate of footwall of the major fault or that of the footwall of its secondary faults. From 480 m and 320 m to 120 m level, the fractal dimensional number of the fault system decreases from 1.482 2 and 1.448 6 to 1.339 2, which indicates the form of fracture zone becoming more simple at deeper level. And in five sub-ranges, the III and IV sub-ranges are the known area, and the I, II and V sub-ranges are unknown. The fractal studies of the western fracture zone in these sub-ranges show that the fractal dimensional numbers of the I and II, being 1.201 5 and 1.278 0, respectively, are smaller than that of the III and IV, being 1.475 9 and 1.576 9, respectively; and that of the V, being 1.571 2, keeps with that of the III, IV sub-ranges. So mineralization is not well in I and II sub-ranges, and V sub-range is the best to benefit mineralization.

Key words

fractal fractal dimension fracture zone Xikuangshan antimony-mine 

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Copyright information

© Central South University 2000

Authors and Affiliations

  • Tang Shi-jia 
    • 1
  • Gao Guang-ming 
    • 1
  • Peng En-sheng 
    • 1
  • Sun Zhen-jia 
    • 1
  1. 1.College of Resources, Environment and Civil EngineeringCentral South UniversityChangshaChina

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