The telescoped porphyry-high sulfidation epithermal Cu(-Au) mineralization of Rongna deposit in Duolong ore cluster at the southern margin of Qiangtang Terrane, Central Tibet: Integrated evidence from geology, hydrothermal alteration and sulfide assemblages
文献类型：期刊论文
| 作者 | Li GuangMing1,2; Zhang XiaNan1,3; Qin KeZhang1,2; Sun XingGuo4; Zhao JunXing1; Yin XianBo4; Li JinXiang2,5; Yuan HuaShan4 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2015-08-01 |
| 卷号 | 31期号:8页码:2307-2324 |
| 关键词 | Porphyry ore deposit High sulfidation epithermal deposit Telescoped mineralization Sulfide assemblages Rongna Southern margin of Qiangtang |
| 文献子类 | Article |
| 英文摘要 | Rongna telescoped porphyry-high sulfidation epithermal Cu-Au deposit within Duolong ore cluster, located at the southern margin of Qiangtang terrane, is an exploration breakthrough made by Chinalco Tibet Company and No. 5 Geological Party of Tibet Bureau of Geology and Exploration in recent years. Its inferred resource has reached a superlarge scale, but the genetic type is still controversy. Based on detailed geological drills records, combined with the observation of microscope, scanning electron microscope and EPMA analysis of sulfides, it is evident that the ore-forming porphyry is granodiorite porphyry. The ore bodies mainly occur in the Lower-Middle Jurassic Sewa Formation feldspathic quartz sandstone and ore-forming porphyry. The W-E trending blind orebodies dip to the south, and are characterized by great downward extension. The metallic metal is copper, associated with mineralization of Au, Ag, and molybdenite mineralization can be seen seldomly. The hydrothermal alteration has two stages, which is biotitization, hornfelsic alteration, silicification-sericitization, silicification-illitization-chloritization, that are related with porphyry, and telescoped advanced argillic alteration in shallow part. The alteration zones are obvious and they are, respectively, veinlet disseminated mineralization formed by porphyry and the other one which is characterized by enargite induced by high sulfidation epithermal hydrotherm. Cu-Bearing mineral assemblages can be divided into 4 zones, which mainly correspond to alteration zones Bornite-chalcopyrite are major ore minerals in depth, while bornite-covellite in transition area, digenite-tennatite-enargite in upper-middle part and chalcocite-digenite on top. On the whole, mineralization is Cu-S system in shallow part and Cu-Fe-S system in depth. Contrasted with other similar deposits, the characteristic of Rongna's mineralization is rich in zinc and poor in gold. As mentioned above, Rongna is a typical example of telescoped porphyry-high sulfidation epithermal Cu-Au deposit, and the exploration breakthrough supplies an important way for exploration in volcanic rock area and coverage area at southern margin of Qiangtang terrane. |
| WOS关键词 | CU-AU DEPOSIT ; ADVANCED ARGILLIC ALTERATION ; BANGONG-NUJIANG SUTURE ; COPPER-DEPOSIT ; EL-SALVADOR ; TECTONIC EVOLUTION ; NORTHWESTERN TIBET ; AG MINERALIZATION ; FLUID INCLUSIONS ; MARICUNGA BELT |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000361075200013 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62251]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Tibet Jinlong Min Co Ltd, Ali 859000, Peoples R China 5.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li GuangMing,Zhang XiaNan,Qin KeZhang,et al. The telescoped porphyry-high sulfidation epithermal Cu(-Au) mineralization of Rongna deposit in Duolong ore cluster at the southern margin of Qiangtang Terrane, Central Tibet: Integrated evidence from geology, hydrothermal alteration and sulfide assemblages[J]. ACTA PETROLOGICA SINICA,2015,31(8):2307-2324. |
| APA | Li GuangMing.,Zhang XiaNan.,Qin KeZhang.,Sun XingGuo.,Zhao JunXing.,...&Yuan HuaShan.(2015).The telescoped porphyry-high sulfidation epithermal Cu(-Au) mineralization of Rongna deposit in Duolong ore cluster at the southern margin of Qiangtang Terrane, Central Tibet: Integrated evidence from geology, hydrothermal alteration and sulfide assemblages.ACTA PETROLOGICA SINICA,31(8),2307-2324. |
| MLA | Li GuangMing,et al."The telescoped porphyry-high sulfidation epithermal Cu(-Au) mineralization of Rongna deposit in Duolong ore cluster at the southern margin of Qiangtang Terrane, Central Tibet: Integrated evidence from geology, hydrothermal alteration and sulfide assemblages".ACTA PETROLOGICA SINICA 31.8(2015):2307-2324. |
入库方式： OAI收割
来源：地质与地球物理研究所
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