中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 岩石圈演化国家重点实验室
Cold subduction recorded by the 1.9 Ga Salma eclogite in Belomorian Province (Russia)

文献类型：期刊论文

作者Li, Xiaoli2; Zhang, Lifei2; Wei, Chunjing2; Thomas, Bader2; Guo, Jinghui1,2
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2023-01-15
卷号602页码:13
关键词Belomorian eclogite Paleoproterozoic garnet cold subduction
ISSN号0012-821X
DOI10.1016/j.epsl.2022.117930
英文摘要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.
WOS关键词LAPLAND-KOLA OROGEN ; METAMORPHIC EVOLUTION ; GRIDINO COMPLEX ; ZIRCON ; GARNET ; GRANULITES ; ELEMENT ; PSEUDOSECTIONS ; FRACTIONATION ; CONSTRAINTS
资助项目National Natural Science Founda-tion of China ; [41872190] ; [41202032]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000896023200001
出版者ELSEVIER
资助机构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
源URL[http://ir.iggcas.ac.cn/handle/132A11/106974]  
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Li, Xiaoli; Zhang, Lifei
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Peking Univ, Sch Earth & Space Sci, MOE Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
推荐引用方式
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.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。