自然科学版 英文版
自然科学版 英文版
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中南大学学报(英文版)

Journal of Central South University

Vol. 7    No. 4    December 2000

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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

College of Resources, Environment and Civil Engineering, Central South University, Changsha 410083, China

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 southwestto 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 ⅢandⅣsub-ranges are the known area, and theⅠ,ⅡandⅤsub-ranges are unknown. The fractal studies of the western fracture zone in these sub-ranges show that the fractal dimensional numbers of theⅠandⅡ, being 1·201 5 and 1·278 0, respectively, are smaller than that of theⅢandⅣ, being 1·475 9 and 1·576 9, respectively; and that of theⅤ, being 1·571 2, keeps with that of theⅢ,Ⅳsub-ranges. So mineralization is not well inⅠandⅡsub-ranges, andⅤsub-range is the best to benefit mineralization.

 

Key words: fractal; fractal dimension; fracture zone; Xikuangshan antimony-mine

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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