IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Coupled supercontinent-mantle plume events evidenced by oceanic plume record
Douce, Luc S.1; Li, Zheng-Xiang1; Ernst, Richard E.2,3; Kirscher, Uwe1,4; El Dien, Hamed Gamal1,5; Mitchell, Ross N.1,6
2020-02-01
Source PublicationGEOLOGY
ISSN0091-7613
Volume48Issue:2Pages:159-163
AbstractThe most dominant features in the present-day lower mantle are the two antipodal African and Pacific large low-shear-velocity provinces (LLSVPs). How and when these two structures formed, and whether they are fixed and long lived through Earth history or dynamic and linked to the supercontinent cycles, remain first-order geodynamic questions. Hotspots and large igneous provinces (LIPs) are mostly generated above LLSVPs, and it is widely accepted that the African LLSVP existed by at least ca. 200 Ma beneath the supercontinent Perigee. Whereas the continental LIP record has been used to decipher the spatial and temporal variations of plume activity under the continents, plume records of the oceanic realm before ca. 170 Ma are mostly missing due to oceanic subduction. Here, we present the first compilation of an Oceanic Large Igneous Provinces database (O-LIPdb), which represents the preserved oceanic LIP and oceanic island basalt occurrences preserved in ophiolites. Using this database, we are able to reconstruct and compare the record of mantle plume activity in both the continental and oceanic realms for the past 2 b.y., spanning three supercontinent cycles. Time-series analysis reveals hints of similar cyclicity of the plume activity in the continent and oceanic realms, both exhibiting a periodicity of similar to 500 m.y. that is comparable to the supercontinent cycle, albeit with a slight phase delay. Our results argue for dynamic LLSVPs where the supercontinent cycle and global subduction geometry control the formation and locations of the plumes.
DOI10.1130/G46754.1
Funding OrganizationAustralian Research Council ; Australian Research Council ; Russian Science Foundation ; Russian Science Foundation ; Australian Research Council ; Australian Research Council ; Russian Science Foundation ; Russian Science Foundation ; Australian Research Council ; Australian Research Council ; Russian Science Foundation ; Russian Science Foundation ; Australian Research Council ; Australian Research Council ; Russian Science Foundation ; Russian Science Foundation
WOS KeywordLARGE IGNEOUS PROVINCES ; TRUE POLAR WANDER ; OPHIOLITES ; TECTONICS ; EVOLUTION ; RODINIA ; HETEROGENEITY ; STRATIGRAPHY ; DYNAMICS ; VELOCITY
Language英语
Funding ProjectAustralian Research Council[FL150100133] ; Russian Science Foundation[18-17-00240]
Funding OrganizationAustralian Research Council ; Australian Research Council ; Russian Science Foundation ; Russian Science Foundation ; Australian Research Council ; Australian Research Council ; Russian Science Foundation ; Russian Science Foundation ; Australian Research Council ; Australian Research Council ; Russian Science Foundation ; Russian Science Foundation ; Australian Research Council ; Australian Research Council ; Russian Science Foundation ; Russian Science Foundation
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000509553300013
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95907
Collection岩石圈演化国家重点实验室
Corresponding AuthorDouce, Luc S.
Affiliation1.Curtin Univ, Sch Earth & Planetary Sci, TIGeR, EDRG, Perth, WA 6845, Australia
2.Carleton Univ, Dept Earth Sci, Ottawa, ON K1S 5B6, Canada
3.Tomsk State Univ, Fac Geol & Geog, Tomsk 63450, Russia
4.Eberhard Karls Univ Tubingen, Dept Geosci, D-72076 Tubingen, Germany
5.Tanta Univ, Fac Sci, Geol Dept, Tanta 31527, Egypt
6.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Douce, Luc S.,Li, Zheng-Xiang,Ernst, Richard E.,et al. Coupled supercontinent-mantle plume events evidenced by oceanic plume record[J]. GEOLOGY,2020,48(2):159-163.
APA Douce, Luc S.,Li, Zheng-Xiang,Ernst, Richard E.,Kirscher, Uwe,El Dien, Hamed Gamal,&Mitchell, Ross N..(2020).Coupled supercontinent-mantle plume events evidenced by oceanic plume record.GEOLOGY,48(2),159-163.
MLA Douce, Luc S.,et al."Coupled supercontinent-mantle plume events evidenced by oceanic plume record".GEOLOGY 48.2(2020):159-163.
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