Paleoproterozoic Alaskan-type ultramafic-mafic intrusions in the Zhongtiao mountain region, North China Craton: Petrogenesis and tectonic implications
文献类型：期刊论文
| 作者 | Yuan, Lingling1,2; Zhang, Xiaohui1; Yang, Zhili1,2; Lu, Yinghuai3; Chen, Haihong4 |
| 刊名 | PRECAMBRIAN RESEARCH
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 296页码:39-61 |
| 关键词 | Paleoproterozoic Ultramafic mafic intrusions Alaskan-type complex Petrogenesis North China Craton |
| ISSN号 | 0301-9268 |
| DOI | 10.1016/j.precamres.2017.04.037 |
| 文献子类 | Article |
| 英文摘要 | Neoarchean to Paleoproterozoic Alaskan-type ultramafic-mafic complexes constitute a rare but genetically important occurrence within the cratonic provinces on Earth and their genesis holds key information for monitoring the evolution of mantle source and the geodynamic processes along ancient convergent plate margins. This geochronological and geochemical study presents one episode of Paleoproterozoic Alaskan-type ultramafic-mafic intrusions from the Zhongtiao Mountain (ZTM) region, North China Craton (NCC), with an emplacement age of ca. 2315 Ma. The intrusions consist of a metamorphosed rock assemblage of peridotite, pyroxenite, gabbro, gabbroic diorite, hornblendite and doleritic dykes. They exhibit a compact elliptical geometry as single entity, linear array of stock clusters and crude lithological zonation from cores of peridotites to margins of hornblendites and gabbroic rocks. They are tholeiitic in composition with an SiO2 range from 39.4 to 57.4%, modest enrichment in light rare earth elements (LREE) and depletion in high field strength elements (HFSE). They possess variable whole rock epsilon(Nd)(t) values from -3.41 to +2.68 and epsilon(Hf)(t) values from -7.23 to +5.11, as well as zircon epsilon(Hf)(t) values from -2.06 to +1.82. These structural and compositional traits bear a close resemblance to those of classic Phanerozoic Alaskan-type complexes. Geochemical and isotopic data indicate that the formation of the present ultramafic-mafic intrusions most likely involved a Mg-rich hydrous parental magma from a subduction fluid-metasomatized lithospheric mantle source and subsequent crystal fractionation-accumulation processes. Besides representing the first recognition of mantle melting events in the ZTM region during the early Paleoproterozoic Siderian interval of ca. 2.45-2.20 Ga, this unusual magmatic episode presents a temporal hallmark for indicating the prevalence of continental arc magmatism. Synthesizing these intrusions with the ca. 2.36-2.10 igneous episodes as well as concomitant episodic metamorphic events in the Trans-North China Orogen can lead to the characterization of a possible divergent double subduction system in the final amalgamation of the NCC during the Paleoproterozic. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | U-PB GEOCHRONOLOGY ; WHOLE-ROCK GEOCHEMISTRY ; CENTRAL OROGENIC BELT ; TONGKUANGYU CU DEPOSIT ; LARGE IGNEOUS PROVINCE ; FAR-EAST RUSSIA ; A-TYPE GRANITE ; LA-ICP-MS ; LULIANG COMPLEX ; ISLAND-ARC |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000403737000003 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China(41573031 ; National Natural Science Foundation of China(41573031 ; Major State Basic Research Program of the People's Republic of China(2012CB416603) ; Major State Basic Research Program of the People's Republic of China(2012CB416603) ; 41390443) ; 41390443) ; National Natural Science Foundation of China(41573031 ; National Natural Science Foundation of China(41573031 ; Major State Basic Research Program of the People's Republic of China(2012CB416603) ; Major State Basic Research Program of the People's Republic of China(2012CB416603) ; 41390443) ; 41390443) ; National Natural Science Foundation of China(41573031 ; National Natural Science Foundation of China(41573031 ; Major State Basic Research Program of the People's Republic of China(2012CB416603) ; Major State Basic Research Program of the People's Republic of China(2012CB416603) ; 41390443) ; 41390443) ; National Natural Science Foundation of China(41573031 ; National Natural Science Foundation of China(41573031 ; Major State Basic Research Program of the People's Republic of China(2012CB416603) ; Major State Basic Research Program of the People's Republic of China(2012CB416603) ; 41390443) ; 41390443) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/51789]  |
| 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 | Zhang, Xiaohui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.China Univ Geosci, State Key Lab Geol Processes & Mineral Resources, Beijing 100083, Peoples R China 4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Lingling,Zhang, Xiaohui,Yang, Zhili,et al. Paleoproterozoic Alaskan-type ultramafic-mafic intrusions in the Zhongtiao mountain region, North China Craton: Petrogenesis and tectonic implications[J]. PRECAMBRIAN RESEARCH,2017,296:39-61. |
| APA | Yuan, Lingling,Zhang, Xiaohui,Yang, Zhili,Lu, Yinghuai,&Chen, Haihong.(2017).Paleoproterozoic Alaskan-type ultramafic-mafic intrusions in the Zhongtiao mountain region, North China Craton: Petrogenesis and tectonic implications.PRECAMBRIAN RESEARCH,296,39-61. |
| MLA | Yuan, Lingling,et al."Paleoproterozoic Alaskan-type ultramafic-mafic intrusions in the Zhongtiao mountain region, North China Craton: Petrogenesis and tectonic implications".PRECAMBRIAN RESEARCH 296(2017):39-61. |
入库方式： OAI收割
来源：地质与地球物理研究所
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