Institutional Repository of State Key Laboratory of Lithospheric Evolution
| Cold subduction recorded by the 1.9 Ga Salma eclogite in Belomorian Province (Russia) | |
| Li, Xiaoli1; Zhang, Lifei1; Wei, Chunjing1; Thomas, Bader1; Guo, Jinghui1,2 | |
| 2023-01-15 | |
| Source Publication | EARTH AND PLANETARY SCIENCE LETTERS
 |
| ISSN | 0012-821X |
| Volume | 602Pages:13 |
| Abstract | When plate tectonics emerged on Earth is one of the most fundamental questions in geosciences. Nowadays, different arguments from diverse research fields (petrology, structural geology, geochemical and numerical modeling) postulate that the lithospheric subduction began sometime in the Archean-Paleoproterozoic with different styles. This study provides robust petrologic evidence for the modern -style plate tectonics onset in the Paleoproterozoic featured by low geothermal gradients. We investigated the Salma eclogite association from the Precambrian Belomorian Province (BP) on the Fennoscandian Shield (Russia). Based on the garnet chemical annuli (major and trace elements) and therein mineral inclusions, plus comprehensive zircon isotopic-chemical analyses, we establish the prograde metamorphic history of the eclogite, leading to peak conditions of 2.2-2.3 GPa, 650-670 degrees C prior to 1.93 Ga. We thus, for the first time, conclude cold subduction (303 +/- 16 degrees C/GPa) proceeded in the BP, connected with the Lapland-Kola Orogen (LKO). Such conclusions are clearly against the previously argued Archean subduction scenario and "warm" tectonic setting in the BP, and are very important for understanding the geodynamics of the early Earth. Furthermore, in the light of other scarce coeval "cold" Paleoproterozoic high pressure (HP) metamorphic rocks elsewhere, we posit that modern-style plate tectonics already operated in the form of the Columbia Supercontinent. (c) 2022 Elsevier B.V. All rights reserved. |
| Keyword | Belomorian eclogite Paleoproterozoic garnet cold subduction |
| DOI | 10.1016/j.epsl.2022.117930 |
| Funding Organization | National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China |
| WOS Keyword | LAPLAND-KOLA OROGEN ; METAMORPHIC EVOLUTION ; GRIDINO COMPLEX ; ZIRCON ; GARNET ; GRANULITES ; ELEMENT ; PSEUDOSECTIONS ; FRACTIONATION ; CONSTRAINTS |
| Language | 英语 |
| Funding Project | National Natural Science Founda-tion of China ; [41872190] ; [41202032] |
| Funding Organization | National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China ; National Natural Science Founda-tion of China |
| WOS Research Area | Geochemistry & Geophysics |
| WOS Subject | Geochemistry & Geophysics |
| WOS ID | WOS:000896023200001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iggcas.ac.cn/handle/132A11/106974 |
| Collection | 岩石圈演化国家重点实验室 |
| Corresponding Author | Li, Xiaoli; Zhang, Lifei |
| Affiliation | 1.Peking Univ, Sch Earth & Space Sci, MOE Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Xiaoli,Zhang, Lifei,Wei, Chunjing,et al. Cold subduction recorded by the 1.9 Ga Salma eclogite in Belomorian Province (Russia)[J]. EARTH AND PLANETARY SCIENCE LETTERS,2023,602:13. |
| APA | Li, Xiaoli,Zhang, Lifei,Wei, Chunjing,Thomas, Bader,&Guo, Jinghui.(2023).Cold subduction recorded by the 1.9 Ga Salma eclogite in Belomorian Province (Russia).EARTH AND PLANETARY SCIENCE LETTERS,602,13. |
| MLA | Li, Xiaoli,et al."Cold subduction recorded by the 1.9 Ga Salma eclogite in Belomorian Province (Russia)".EARTH AND PLANETARY SCIENCE LETTERS 602(2023):13. |
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