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Volume 19 Issue 1
Feb 2008
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Journal of Earth Science  > 2008  >  19(1): 77-84.
Zhijing Wang, Qiuming Cheng, Deyi Xu, Yaosong Dong. Fractal Modeling of Sphalerite Banding in Jinding Pb-Zn Deposit, Yunnan, Southwestern China. Journal of Earth Science, 2008, 19(1): 77-84.
Citation: Zhijing Wang, Qiuming Cheng, Deyi Xu, Yaosong Dong. Fractal Modeling of Sphalerite Banding in Jinding Pb-Zn Deposit, Yunnan, Southwestern China. Journal of Earth Science, 2008, 19(1): 77-84.
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Fractal Modeling of Sphalerite Banding in Jinding Pb-Zn Deposit, Yunnan, Southwestern China

  • 1.

    Department of Earth and Space Science and Engineering, York University, 4700 Keele Street, Ontario, Canada M3J1P3

  • 2.

    State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China

Funds:

the Open Fund of the State Key Laboratory of Geological Processes and Mineral Resources of China, an NSERC Discovery Research Grant ERC-OGP0183993

NSFC 40373003

More Information
  • Corresponding author: Wang Zhijing: zhijingw@yorku.ca
  • Received Date: 20 Oct 2007
  • Accepted Date: 12 Dec 2007
    Abstract

  • Sphalerite banding is a common texture in Jinding (金顶) Pb-Zn deposit, Yunnan (云南), southwestern China. The frequency distribution and irregularity of sphalerite grains observed in the bandings are characterized quantitatively by fractal models. Fractal dimensions calculated by several fractal models including box-counting model, perimeter-area (P-A) model, and number-area (N-A) model show the gradual change from outer banding to inner banding, indicating a decrease in area percentage, in irregularity, in shape and in grain size, and an increase in the numbers of grains. These results may imply an inward growth of sphalerite during mineralization, and self-organization properties are involved in the nonlinear process of mineralization.

     

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