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Continental Mid-Lithosphere Discontinuity: A Water Collector During Craton Evolution

文献类型：期刊论文

作者Fu, Hui-Ying2; Li, Zhong-Hai2; Chen, Ling1
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2022-12-16
卷号49期号:23页码:12
ISSN号0094-8276
DOI10.1029/2022GL101569
英文摘要Continental mid-lithosphere discontinuity (MLD) seems to be ubiquitous beneath cratons around the world with the dominant depth of 70-100 km, and is characterized by a shear-wave velocity drop of 2%-7%, according to geophysical observations. The MLD is often considered to be related to a rheologically weak layer; however, the mechanism of MLD formation is widely debated. In this study, we have conducted systematic numerical modeling with a new and simplified deep hydration method to study the dynamics of craton evolution and MLD formation. The results indicate that the MLD may be induced by slow hydration processes within the mantle lithosphere during craton evolution. The top boundary of this hydrated layer is characterized by high water content and low shear-wave velocities, and is consistent with the depth and properties of natural MLD observations. Thus, we propose that the MLD may act as a water collector during craton evolution.
WOS关键词UPPER-MANTLE STRUCTURE ; NORTH CHINA CRATON ; CENTRAL UNITED-STATES ; S-RECEIVER-FUNCTIONS ; STRUCTURE BENEATH ; ASTHENOSPHERE BOUNDARY ; LAYERED STRUCTURE ; SEISMIC EVIDENCE ; TRANSITION ZONE ; LOW-TEMPERATURE
资助项目National Key R&D Program of China[2022YFF0801001] ; NSFC[42225403] ; NSFC[42288201] ; Fundamental Research Funds for the Central Universities
WOS研究方向Geology
语种英语
WOS记录号WOS:000925868000001
出版者AMER GEOPHYSICAL UNION
资助机构National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/106798]  
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, Zhong-Hai
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospherie Evolut, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Key Lab Computat Geodynam, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Fu, Hui-Ying,Li, Zhong-Hai,Chen, Ling. Continental Mid-Lithosphere Discontinuity: A Water Collector During Craton Evolution[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(23):12.
APA Fu, Hui-Ying,Li, Zhong-Hai,&Chen, Ling.(2022).Continental Mid-Lithosphere Discontinuity: A Water Collector During Craton Evolution.GEOPHYSICAL RESEARCH LETTERS,49(23),12.
MLA Fu, Hui-Ying,et al."Continental Mid-Lithosphere Discontinuity: A Water Collector During Craton Evolution".GEOPHYSICAL RESEARCH LETTERS 49.23(2022):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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