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| GEOCHEMICAL CHARACTERISTICS OF THE XILEKUDUK Mo-Cu DEPOSIT IN FUYUN COUNTY, XINJIANG |
| CAO Jin-yuan1,2, LI Chun-xia2, YOU Jun2, DING Ru-fu2 |
1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;
2. Beijing Institute of Geology for Mineral Resou- rces, Beijing 100012, China |
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Abstract Based on a study of geological features and characteristics of trace elements in the strata and magmatic rocks of the Xilekuduke Mo-Cu deposit in Fuyun County, the authors consider that the lower subformation of the Lower Carboniferous Nanmingshui Formation is the main ore-bearing horizon, in which the strongly altered sandstone and tuffaceous siltstone are enriched with metallogenic elements. The content characteristics of metallogenic elements and associated elements in the magmatic rocks show that the late Hercynian granodiorite, granodiorite porphyry and diorite porphyry were closely related to the mineralization and might have provided metallogenic materials directly or indirectly. Studies of geochemical anomalies show that in the horizontal direction, the ore deposit has elemental zonation of Mo, Cu(Au)→V, Ti, Co, Cr, Ni, Mn, As, Sb, Hg, W, Sn, Bi→Ag, Zn, B, F, while in the vertical direction, the elemental zonation is F, B, As(Cr, Ni)→Au, Cu, W(Mo, V, Co, Bi)→Mn(Au, V, Bi, Mo), which may have some guiding significance for mineral exploration.
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Received: 02 May 2011
Published: 10 June 2012
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