The adakite connection of the Tuwu-Yandong copper porphyry belt, eastern Tianshan, NW China: trace element and Sr-Nd-Pb isotope geochemistry
文献类型：期刊论文
| 作者 | Zhang, Lianchang; Xiao, Wenjiao; Qin, Kezhang; Zhang, Qi |
| 刊名 | MINERALIUM DEPOSITA
 |
| 出版日期 | 2006-05-01 |
| 卷号 | 41期号:2页码:188-200 |
| 关键词 | Adakite Porphyry Copper Deposit Island Arc Late Paleozoic East Tianshan |
| ISSN号 | 0026-4598 |
| DOI | 10.1007/s00126-006-0058-6 |
| 文献子类 | Article |
| 英文摘要 | The Tuwu-Yandong porphyry copper belt lies in the eastern Tianshan mountains, eastern section of the Central Asian orogenic belt. The copper mineralization is mainly hosted in plagiogranite porphyries intruded into early Carboniferous volcanic rocks of the Paleozoic Dananhu island arc between the Tarim and Siberian plates. The plagiogranite porphyries have contents of 65-73 wt% SiO2, 14-17 wt% Al2O3, 0.9-2.2 wt% MgO, 3-16 ppm Y, 0.4-1.40 ppm Yb, 347-920 ppm Sr, and positive Eu anomalies. The rocks also exhibit positive epsilon(Nd(t)) values (+5.0 to +9.4) and low initial Sr-87/Sr-86 values (0.70316-0.70378). Such features are similar to those of adakites derived from partial melting of a subduction-related oceanic slab. The mineralization age is early Carboniferous (350-320 Ma), which is close to that of the porphyries. The close relationship between the Cu mineralization and the porphyry is also indicated by their similar Sr-Nd-Pb isotopic compositions. We suggest that the copper porphyry (magma) system in the Dananhu island arc was formed by direct melting of an obliquely subducting early Carboniferous oceanic slab. |
| WOS关键词 | CENTRAL-ASIA ; SUBDUCTED LITHOSPHERE ; COLLISIONAL TECTONICS ; METALLOGENIC BELT ; SOUTHERN TIBET ; MANTLE WEDGE ; CU DEPOSITS ; TIEN-SHAN ; SLAB ; GENESIS |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000238356800006 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66032]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, Lianchang |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lianchang,Xiao, Wenjiao,Qin, Kezhang,et al. The adakite connection of the Tuwu-Yandong copper porphyry belt, eastern Tianshan, NW China: trace element and Sr-Nd-Pb isotope geochemistry[J]. MINERALIUM DEPOSITA,2006,41(2):188-200. |
| APA | Zhang, Lianchang,Xiao, Wenjiao,Qin, Kezhang,&Zhang, Qi.(2006).The adakite connection of the Tuwu-Yandong copper porphyry belt, eastern Tianshan, NW China: trace element and Sr-Nd-Pb isotope geochemistry.MINERALIUM DEPOSITA,41(2),188-200. |
| MLA | Zhang, Lianchang,et al."The adakite connection of the Tuwu-Yandong copper porphyry belt, eastern Tianshan, NW China: trace element and Sr-Nd-Pb isotope geochemistry".MINERALIUM DEPOSITA 41.2(2006):188-200. |
入库方式： OAI收割
来源：地质与地球物理研究所
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