Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (4): 1257-1268.doi: 10.13278/j.cnki.jjuese.201504305

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A Path-Savable Shortest-Distance Field Generating Algorithm in Three-Dimensional Heterogenetic Space

Wang Lifang1, Wu Xiangbin1, Zhang Baoyi1,2, Li Xiaoli1, Yang Li1   

  1. 1. MOE Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring/School of Geosciences and Info-Physics, Central South University, Changsha 410083, China;
    2. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
  • Received:2014-10-29 Published:2015-07-26

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Abstract:

A comprehensive study on three-dimensional (3D) spatial information is highly demanded for a quantitive prediction of mineralization. The difficulties are often confronted in geological feature quantitive expression and deep-seated information extraction. A shortest-distance field generating algorithm in 3D heterogenetic space is developed, which can track back to the shortest path from an object voxel to the source voxel. The algorithm has been used to a copper mine district for its deeper and comprehensive information based on the 3D geological entity model. A shortest-distance field to the intrusive rocks is calculated to analyze the geological problems, such as thermodynamic field and the alteration of surrounding rock in consideration of the roles played by the faults in dividing 3D geological space.

Key words: distance field, three-dimensional, heterogenetic, path, metallogenic prediction

CLC Number: 

  • P628.3

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