The relationship between ore-forming processes and adakitic rock in Tuwu-Yandong porphyry copper metallogenic belt, eastern Tianshan mountains
文献类型：期刊论文
| 作者 | Zhang, LC; Qin, KZ; Ying, JF; Xia, B; Shu, JS |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2004-03-01 |
| 卷号 | 20期号:2页码:259-268 |
| 关键词 | adakitic rocks porphyry copper deposit island arc Paleozoic east Tianshan |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Tuwu-Yandong porphyry copper deposits lies in East Tianshan Mountains, eastern section of Central Asia orogenic belt. The copper deposits occur in the Paleozoic Dananhu island arc on the northern margin of Tarim plate. The copper mineralization is hosted in plagiogranite porphyry intruded into early Devonian intermediate to mafic volcanoclastic rocks. This paper reported major and trace elements compositions of ore-hosting plagiogranite porphyry in Tuwu-Yandong ore belt. The compositions of SiO2 (64.37% 72.28 %), Al2O3 (14.77% similar to 17.71 %), MgO (0.55% - 1.35%), Y (4.42 - 11.1 mug/g), Yb (0.38 similar to 0.87 mug/g), Sr (619 similar to738 mug/g) and positive Eu anomalies indicate that the plagiogranite porphyry shows characteristics of adakitic rock. The adakitic rocks are spatially and temporally associated with copper mineralization: the mineralization age is early Carboniferous, a little younger or same as that of the adakitic rocks; the copper ore bodies are associated with the adakitic rocks in spatial distribution; and almost all the adakitic rocks were altered and mineralized in the ore area. The study on isotopic geochemistry indicates that the ore-forming materials and fluids came mainly from the adakitic magma. We suggest that the volcanic rocks and adakitic rocks in the island are were formed during different geological processes. The former was formed in partial melting of mantle wedge on the subducting slab, which the later was formed in direct melting of oceanic plate. |
| WOS关键词 | SUBDUCTED LITHOSPHERE ; CU DEPOSITS ; GENESIS ; CHINA ; CONSTRAINTS ; MANTLE ; ORIGIN ; MAGMAS ; GOLD ; ARC |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000221036700008 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/64347]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, LC |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resourcews, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 3.Changan Univ, Resources Coll, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, LC,Qin, KZ,Ying, JF,et al. The relationship between ore-forming processes and adakitic rock in Tuwu-Yandong porphyry copper metallogenic belt, eastern Tianshan mountains[J]. ACTA PETROLOGICA SINICA,2004,20(2):259-268. |
| APA | Zhang, LC,Qin, KZ,Ying, JF,Xia, B,&Shu, JS.(2004).The relationship between ore-forming processes and adakitic rock in Tuwu-Yandong porphyry copper metallogenic belt, eastern Tianshan mountains.ACTA PETROLOGICA SINICA,20(2),259-268. |
| MLA | Zhang, LC,et al."The relationship between ore-forming processes and adakitic rock in Tuwu-Yandong porphyry copper metallogenic belt, eastern Tianshan mountains".ACTA PETROLOGICA SINICA 20.2(2004):259-268. |
入库方式： OAI收割
来源：地质与地球物理研究所
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