| Elements mobilization of mineralized porphyry rocks during hydrothermal alteration at Zhushahong porphyry copper deposit, Dexing district, South China | |
| Alternative Title | 德兴朱砂红斑岩铜矿热液蚀变作用及元素地球化学迁移规律 |
| Wang CY(王翠云); Li XF(李晓峰); Xiao R(肖荣); Bai YP(白艳萍); Yang F(杨锋); Mao W(毛伟); Jiang SK(蒋松坤) | |
| 2012 | |
| Source Publication | Acta Petrologica Sinica
 |
| Volume | 28Issue:12Pages:3869-3886 |
| Abstract | Dexing copper ore field, one of the most typical porphyry deposits in South China, is composed of Zhushahong, Tongchang, Fujiawu ore deposits. Based on petrographic investigation of drill core samples, the mineralized granodiorite porphyries at Zhushahong deposit are divided into three altered rock types, namely, the biotite-potassium feldspar alteration type, chlorite alteration type, and quartz-sericite (muscovite) alteration type. The alteration intensity of the three types rock changes from low through intermediate to high in sequence. According to the immobility of Al2O3, the Isocon analysis shows that during the hydrothermal alteration, the major elements (P2O5) as well as high field strength elements (e. g. Zr, Y, Nb, Ta and Hf) and transitional elements are almost immobile, while Na2O and Sr are strongly depleted. Metallic elements of Cu, Pb and W dramatically move in, indicating that the hydrothermal fluid responsible for alteration and the ore-forming fluid may belong to the same fluid system. The chondrite-normalized REE distribution patterns of all samples show typical flat to listric-shaped patterns and reflect crystallization of amphibole. In terms of net element gain and loss, chlorite alteration rocks have undergone net REE loss, while the muscovite-quartz alteration porphyries shows great difference, the behavior of LREE/HREE is contingent on the samples. The Y/Ho ratios are similar to those of CI chondrite, which indicates that Y and Ho show a similar geochemical behaviour during hydrothermal alteration. The ganodiorite porphyry rocks have high Sr/Y and La/Sm ratios and medium Sm/Yb ratios, indicating a magma source with the residual phases of amphibole and/or garnet. |
| Indexed By | SCI |
| Language | 中文 |
| Document Type | 期刊论文 |
| Identifier | http://ir.gyig.ac.cn/handle/352002/5129 |
| Collection | 矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文 |
| Recommended Citation GB/T 7714 | Wang CY,Li XF,Xiao R,et al. Elements mobilization of mineralized porphyry rocks during hydrothermal alteration at Zhushahong porphyry copper deposit, Dexing district, South China[J]. Acta Petrologica Sinica,2012,28(12):3869-3886. |
| APA | 王翠云.,李晓峰.,肖荣.,白艳萍.,杨锋.,...&蒋松坤.(2012).Elements mobilization of mineralized porphyry rocks during hydrothermal alteration at Zhushahong porphyry copper deposit, Dexing district, South China.Acta Petrologica Sinica,28(12),3869-3886. |
| MLA | 王翠云,et al."Elements mobilization of mineralized porphyry rocks during hydrothermal alteration at Zhushahong porphyry copper deposit, Dexing district, South China".Acta Petrologica Sinica 28.12(2012):3869-3886. |
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