Petrogenesis and geological significance of the Paleoproterozoic Dushikou metagabbro-diorite in northern Hebei Province
文献类型：期刊论文
| 作者 | Wang Fang3,4; Peng Peng2 ; Chen Chao3,4; Hu HongFei1; Huang DongQin6; Chen FuKun5; Zhai MingGuo2
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| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2021 |
| 卷号 | 37期号:1页码:269-283 |
| 关键词 | Metagabbro-diorite Hongqiyingzi Complex Zircon U-Pb ages Hf isotope Dushikou North China Craton |
| ISSN号 | 1000-0569 |
| DOI | 10.18654/1000-0569/2021.01.16 |
| 英文摘要 | A combined analysis of whole rock major and trace elements, LA-ICP-MS zircon U-Pb ages, trace element and Hf isotope of the Paleoproterozoic Dushikou metagabbro-diorite, which is newly discovered in the Hongqiyingzi complex, to the north of Chicheng, Hebei Province, are performed to better understand the Paleoproterozoic magmatism-metamorphism-tectonics of the North China Craton. This pluton has the features of typical tholeiitic magmatic rocks, with SiO2 contents of 51. 27% similar to 54. 39%, Na2O + K2O of 4. 65% similar to 6. 00%, Al2O3 of 14. 74% similar to 15. 51%, MgO of 2. 19% similar to 4.65% and Mg-# ranging from 28 to 47. The rocks are rich in light rare earth elements and large ion lithophile elements, and depleted in high field strength elements such as Nb, Ta, etc. They are characterized by magmatism formed by partial melting of metasomatic lithospheric mantle, representing the products of crust-mantle interaction. Zircons in the metagabbro-diorite show high Th/U ratios, suggesting a magmatic origin. LA-ICP-MS zircon U-Pb dating results of two metagabbro-diorite samples are 1808 +/- 18 Ma and 1825 +/- 18 Ma, respectively, indicating that the pluton emplacement postponed the peak stage of regional metamorphism at Paleoproterozoic. The epsilon(Hf) (t) values of dated zircons range from -5. 4 to + 0. 1 , with t(DM1) from 2236Ma to 2418Ma, indicating that a mixture of juvenile mantle, Archean lithosphere mantle and some crustal materials in its magma generation. Consequently, the Dushikou metagabbro-diorite may represent the magmatic product of regional uplift (extension) probably induced by the loss of the root of the Paleoproterozoic orogeny. |
| WOS关键词 | DAMIAO ANORTHOSITE COMPLEX ; CHONGLI-CHICHENG AREA ; U-PB GEOCHRONOLOGY ; CHINA CRATON ; METAMORPHIC BASEMENT ; ZIRCON AGES ; EVOLUTION ; CONSTRAINTS ; MARGIN ; GEOCHEMISTRY |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000617906000016 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/100146]  |
| 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 | Wang Fang |
| 作者单位 | 1.Bur Geol & Mineral Resources Explorat Anhui Prov, Geol Team 313, Luan 237010, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.HeBei GEO Univ, Coll Earth Sci, Shijiazhuang 050031, Hebei, Peoples R China 4.Hebei Key Lab Strateg Crit Mineral Resources, Shijiazhuang 050031, Hebei, Peoples R China 5.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China 6.Zhejiang Univ, Ocean Coll, Zhoushan 316021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Fang,Peng Peng,Chen Chao,et al. Petrogenesis and geological significance of the Paleoproterozoic Dushikou metagabbro-diorite in northern Hebei Province[J]. ACTA PETROLOGICA SINICA,2021,37(1):269-283. |
| APA | Wang Fang.,Peng Peng.,Chen Chao.,Hu HongFei.,Huang DongQin.,...&Zhai MingGuo.(2021).Petrogenesis and geological significance of the Paleoproterozoic Dushikou metagabbro-diorite in northern Hebei Province.ACTA PETROLOGICA SINICA,37(1),269-283. |
| MLA | Wang Fang,et al."Petrogenesis and geological significance of the Paleoproterozoic Dushikou metagabbro-diorite in northern Hebei Province".ACTA PETROLOGICA SINICA 37.1(2021):269-283. |
入库方式： OAI收割
来源：地质与地球物理研究所
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