Geochemistry and zircon U-Pb geochronology of Getashankou mafic-ultramafic intrusions, eastern Tianshan, and its implication for Ni-Cu mineralization.
文献类型：期刊论文
| 作者 | Feng HongYe1,2; Xu YingXia1; Qin KeZhang2; Tang DongMei2; Guo HaiBing3; San JinZhu3; Mao YaJing2,4 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2014-06-01 |
| 卷号 | 30期号:6页码:1558-1574 |
| 关键词 | Mafic-ultramafic intrusions Geochemistry Zircon U-Pb age Ni-Cu mineralization potential Getashankou Eastern Tianshan |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The newly-discovered Getashankou Ni-Cu deposit is located in the eastern of the Kanggur-Huangshan ductile shear fracture zone, eastern Tianshan, NW-China. There are four mafic-ultramafic intrusions, of them the intrusion I, II and E are Ni-Cu sulfide bearing intrusions. By high-precision SIMS Zircon U-Pb dating, we obtained the concordant age of 282. 6 +/- 1. 9Mo ( MSWD = 0. 15) for gabbros of No. I ore-bearing intrusion. The age is not only consistent with the ages of other sulfide bearing mafic and ultramafic intrusions in eastern Tianshan area, but also consistent with the age of mafic-ultramafic intrusions in Beishan area and the Tarim basalt and mafic dyke swarm. Therefore the formations of Getashankou intrusions may be related to the Permian mantle-plume activity add to the post-orogenic processes. The geochemical data shows that the Getashankou intrusions characterized by high MgO contents ( m/f values of 14 samples range from 2. 73 to 5. 05, falling into the range of ferruginous ultramafic rocks), LREE-rich pattern with the ratio of LREE/HREE ranges from 2. 64 to 3. 39, enriched LILE ( Cs, Rb, Ba, K, Sr) and HFSE ( U, Pb), depleted HFSE ( Th, Nb). The diagrams of SiO2 -( Na2O + K2O) and ( FeOT/MgO) - FeOT, trace elements correlation and its ratio correlation indicate that the magma of Getashankou is calc-alkaline basaltic which derived from depleted mantle, the diagenesis is mainly controlled by the magmatic crystallization, and contaminated by the crust during upward of magma, and the intrusions have good potential for Ni-Cu sulfide exploration. |
| WOS关键词 | ASIAN OROGENIC BELT ; NW CHINA ; TECTONIC EVOLUTION ; SULFIDE DEPOSITS ; ALTAY OROGENS ; BEISHAN AREA ; XINJIANG ; MANTLE ; PETROGENESIS ; HF |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000338487400004 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84928]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Feng HongYe |
| 作者单位 | 1.Hebei United Univ, Dept Geol, Tangshan 063009, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 3.Xinjiang Geol & Explorat Bur Nonferrous Met, Hami 839000, Peoples R China 4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resource, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng HongYe,Xu YingXia,Qin KeZhang,et al. Geochemistry and zircon U-Pb geochronology of Getashankou mafic-ultramafic intrusions, eastern Tianshan, and its implication for Ni-Cu mineralization.[J]. ACTA PETROLOGICA SINICA,2014,30(6):1558-1574. |
| APA | Feng HongYe.,Xu YingXia.,Qin KeZhang.,Tang DongMei.,Guo HaiBing.,...&Mao YaJing.(2014).Geochemistry and zircon U-Pb geochronology of Getashankou mafic-ultramafic intrusions, eastern Tianshan, and its implication for Ni-Cu mineralization..ACTA PETROLOGICA SINICA,30(6),1558-1574. |
| MLA | Feng HongYe,et al."Geochemistry and zircon U-Pb geochronology of Getashankou mafic-ultramafic intrusions, eastern Tianshan, and its implication for Ni-Cu mineralization.".ACTA PETROLOGICA SINICA 30.6(2014):1558-1574. |
入库方式： OAI收割
来源：地质与地球物理研究所
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