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author:

Zhu, Q. (Zhu, Q..) [1] | Xie, G. (Xie, G..) [2] | Gao, R. (Gao, R..) [3] | Xu, J. (Xu, J..) [4] | Lu, L. (Lu, L..) [5]

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Scopus

Abstract:

Porphyry-skarn Cu deposits are frequently characterized by high contents of dispersed elements, which exhibit significantly diversified enrichment between them. However, the regularity of the diversified enrichment remains insufficiently understood. In this study, the primary ore minerals present in the Chengmenshan deposit were investigated, using the optical microscope and scanning electron microscopy. Additionally, correlation analysis, cluster analysis, and fractal analysis were employed to explore the relationships between the dispersed elements (Te, Se, Ga, Ge, Cd, In, and Tl) and Bi contents in the drill cores. The results reveal that Te is predominantly hosted by independent minerals, with only a minor fraction incorporated into sulfides. In contrast, other dispersed elements are incorporated by at least two types of sulfide. The distribution patterns of the dispersed elements at Chengmenshan exhibit multifractal patterns, except for Tl, which follows a simple fractal distribution due to its complex occurrence. The enrichment pattern of these dispersed elements at Chengmenshan is characterized by a sequential separation and spatial dislocation. The pattern is likely influenced by metallogenic factors such as temperature, pH, fS2, and fO2, along with the distinctive geochemical properties of the dispersed elements. This research demonstrates that an understanding of the diversified enrichment regularity of these dispersed elements could be instrumental in identifying independent deposits of these elements. Furthermore, a primary halo distribution model for the dispersed elements in the Chengmenshan deposit has been developed, which may serve as a valuable reference for studying the genesis of associated dispersed element deposits and for the prospecting and exploration of deeply buried targets. © 2025 China University of Geosciences. All rights reserved.

Keyword:

Chengmenshan deposit dispersed elements diversified enrichment fractal distribution ore deposit primary halo

Community:

  • [ 1 ] [Zhu Q.]MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037, China
  • [ 2 ] [Xie G.]MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037, China
  • [ 3 ] [Xie G.]MNR Key Laboratory for Exploration Theory & Technology of Critical Mineral Resources, China University of Geosciences(Beijing), Beijing, 100083, China
  • [ 4 ] [Gao R.]No.2 Geological Team, Jiangxi Bureau of Geology, Jiujiang, 332000, China
  • [ 5 ] [Xu J.]Zijin School of Geology and Mining, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Lu L.]MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037, China

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Source :

Earth Science - Journal of China University of Geosciences

ISSN: 1000-2383

Year: 2025

Issue: 7

Volume: 50

Page: 2667-2688

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SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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