Cu-Ni mineralization in Early Permian mafic complexes in the Kalatage area of eastern Tianshan (NW China): Petrogenetic constraints from geochronology, geochemistry, and Hf-Sr-Nd-Os isotopes
文献类型：期刊论文
| 作者 | Mao, Qigui1,2,3,4,8; Ao, Songjian1,6,7; Windley, Brian F.5; Lu, Xiaoqiang2; Liao, Zhen2; Wang, Yang8; Sang, Miao1,3; Zhou, Kefa1,3,6; Han, Chunming1,6,7; Xiao, Wenjiao1,3,4,6,7 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2021-09-01 |
| 卷号 | 136页码:23 |
| ISSN号 | 0169-1368 |
| 关键词 | Mafic complexes Hf-Sr-Nd-Os isotope Cu-Ni sulfide deposit Early Permian eastern Tianshan |
| DOI | 10.1016/j.oregeorev.2021.104258 |
| 英文摘要 | The Early Permian was a critical period in the long history of accretion and collision of the southern Altaid orogen. Early Permian mafic-(ultramafic) intrusions and mafic-ultramafic-related sulfide Cu-Ni deposits are common in the eastern Tianshan, but the sulfide Cu-Ni deposits related to the mafic intrusions are still poorly studied, and yet provide key information on the ambient tectonic evolution. In order to help understand their petrogenesis, we report new data on the Early Permian mafic intrusions and related sulfide Cu-Ni deposits in the Dananhu arc of the eastern Tianshan in NW China. The ore-bearing Yueyawan complex is a well-differentiated, zoned mafic intrusion consisting of troctolite, olivine gabbro, layered gabbro, gabbro, and leucogabbro from the bottom upwards. The ore bodies are primarily strata-bound within olivine gabbros and troctolites at the bottom of the complex. The ores are more enriched in Cu than Ni than the more enriched, disseminated, veined and massive equivalents. Gabbros from the mafic complex yield zircon crystallization ages that range from 265 Ma to 273 Ma. The gabbros are tholeiitic and characterized by typical subduction-related geochemical signatures with low TiO2 contents, enrichments in Rb, Ba, U, K, Pb, and Sr, depletion in Nb and Ta, positive Eu and Ti anomalies, high epsilon Nd (t) values of +7.44 to +8.06, zircon epsilon Hf (t) values of +11.68 to +20.58, and low (Sr-87/Sr-86)i (0.703322-0.703416). The gabbroic rocks have positive correlations between SiO2 and TiO2, Al2O3, CaO, Nb, and Y, and negative correlations between SiO2 and MgO, Ni, and Co. The (Os-187/Os-188)i and gamma Os values of sulfides from the Yueyawan complex that contains Cu-Ni deposits range from 0.266 to 0.372 and 112 to 197, respectively. These geological, petrological, and geochemical characters indicate that the gabbros were mantlederived, and that fractionation and crustal contamination were essential for the genesis of the magmatic Cu-Ni sulfide deposits. After integrating our data with those of previous investigations, we conclude that the protoliths of the sulfide deposits were probably derived from an asthenospheric garnet-free mantle in a subduction setting in the Early Permian. Oblique ocean-ridge subduction and a resultant slab window plausibly induced asthenospheric upwelling that gave rise to the generation of the mantle-derived melts, which likely moved into strike-slip faults through a slab window in the supra-subduction zone. Strong fractionation, crustal contamination, and multi-stage eruptions led to formation of the Cu-Ni sulfide deposits. |
| WOS关键词 | ASIAN OROGENIC BELT ; RE-OS ; U-PB ; ULTRAMAFIC INTRUSIONS ; CONTINENTAL GROWTH ; TECTONIC EVOLUTION ; NORTHWEST CHINA ; VOLCANIC-ROCKS ; SULFIDE MINERALIZATION ; OCEANIC BASALTS |
| 资助项目 | National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41822204] ; National Key R&D Program of China[2017YFC0601201] ; BR Project CAS[131551KYSB20200021] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000671814500001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; BR Project CAS ; BR Project CAS ; BR Project CAS ; BR Project CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; BR Project CAS ; BR Project CAS ; BR Project CAS ; BR Project CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; BR Project CAS ; BR Project CAS ; BR Project CAS ; BR Project CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; BR Project CAS ; BR Project CAS ; BR Project CAS ; BR Project CAS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101989]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Mao, Qigui; Ao, Songjian; Xiao, Wenjiao |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Earth Sci, Cas, Peoples R China 2.Beijing Inst Geol Mineral Resources, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 5.Univ Leicester, Sch Geog Geol & Environm, Leicester LE1 7RH, Leics, England 6.Chinese Acad Sci, China Pakistan Joint Res Ctr Earth Sci, Beijing, Peoples R China 7.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 8.Redrock Min CO Ltd, Hami 839000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, Qigui,Ao, Songjian,Windley, Brian F.,et al. Cu-Ni mineralization in Early Permian mafic complexes in the Kalatage area of eastern Tianshan (NW China): Petrogenetic constraints from geochronology, geochemistry, and Hf-Sr-Nd-Os isotopes[J]. ORE GEOLOGY REVIEWS,2021,136:23. |
| APA | Mao, Qigui.,Ao, Songjian.,Windley, Brian F..,Lu, Xiaoqiang.,Liao, Zhen.,...&Xiao, Wenjiao.(2021).Cu-Ni mineralization in Early Permian mafic complexes in the Kalatage area of eastern Tianshan (NW China): Petrogenetic constraints from geochronology, geochemistry, and Hf-Sr-Nd-Os isotopes.ORE GEOLOGY REVIEWS,136,23. |
| MLA | Mao, Qigui,et al."Cu-Ni mineralization in Early Permian mafic complexes in the Kalatage area of eastern Tianshan (NW China): Petrogenetic constraints from geochronology, geochemistry, and Hf-Sr-Nd-Os isotopes".ORE GEOLOGY REVIEWS 136(2021):23. |
入库方式： OAI收割
来源：地质与地球物理研究所
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