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Minerals 2017, 7(12), 243; doi:10.3390/min7120243

Joint Application of Fractal Analysis and Weights-of-Evidence Method for Revealing the Geological Controls on Regional-Scale Tungsten Mineralization in Southern Jiangxi Province, China

1
School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
2
Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
3
School of Water Resource and Environment, China University of Geosciences, Beijing 341515, China
4
Geological Team of Ganzhou City, Ganzhou 341000, China
*
Author to whom correspondence should be addressed.
Received: 27 October 2017 / Revised: 5 December 2017 / Accepted: 6 December 2017 / Published: 11 December 2017
(This article belongs to the Special Issue Geological Modelling)
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Abstract

The Southern Jiangxi Province (SJP) hosts one of the best known districts of tungsten deposits in the world. Delineating spatial complexities of geological features and their controls on regional-scale tungsten mineralization by using an integrated fractal and weights-of-evidence (WofE) method can provide insights into the understanding of ore genesis and facilitate further prospecting in this area. The box-counting fractal analysis shows that most of the tungsten occurrences are distributed in regions with high fractal dimensions of faults and fault intersections, suggesting ore-forming favorability of areas with highly complex structural patterns. The WofE-derived indices are employed to quantitatively measure the controls of analyzed features on mineralization, which illustrate that tungsten anomalies, faults, Yanshanian granites, and manganese anomalies have high contrast values, implying a spatially strong correlation of these features with tungsten occurrences. In particular, high manganese anomalies in host rock may provide a novel indication for mineral prospecting in this area. A predictive map is extracted based on the combination of fractal and WofE results, providing intuitive guides for future prospectivity in this area. Regions identified by high posterior probability in conjunction with high fractal dimensions of both faults and fault intersections are evaluated as the most favorable targets. View Full-Text
Keywords: fractal analysis; weights-of-evidence method; tungsten mineralization; mineral prospectivity; Southern Jiangxi Province fractal analysis; weights-of-evidence method; tungsten mineralization; mineral prospectivity; Southern Jiangxi Province
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Sun, T.; Wu, K.; Chen, L.; Liu, W.; Wang, Y.; Zhang, C. Joint Application of Fractal Analysis and Weights-of-Evidence Method for Revealing the Geological Controls on Regional-Scale Tungsten Mineralization in Southern Jiangxi Province, China. Minerals 2017, 7, 243.

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