Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle
Plate tectonics and mantle plumes are two of the most fundamental solid-Earth processes that have operated through much of Earth history. For the past 300 million years, mantle plumes are known to derive mostly from two large low shear velocity provinces (LLSVPs) above the core-mantle boundary, refe...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
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NATURE PUBLISHING GROUP
2019
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/FL150100133 http://hdl.handle.net/20.500.11937/90598 |
| _version_ | 1848765398528294912 |
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| author | Gamal EL Dien, Hamed Doucet, Luc Li, Zheng-Xiang Cox, Grant Mitchell, Ross |
| author_facet | Gamal EL Dien, Hamed Doucet, Luc Li, Zheng-Xiang Cox, Grant Mitchell, Ross |
| author_sort | Gamal EL Dien, Hamed |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Plate tectonics and mantle plumes are two of the most fundamental solid-Earth processes that have operated through much of Earth history. For the past 300 million years, mantle plumes are known to derive mostly from two large low shear velocity provinces (LLSVPs) above the core-mantle boundary, referred to as the African and Pacific superplumes, but their possible connection with plate tectonics is debated. Here, we demonstrate that transition elements (Ni, Cr, and Fe/Mn) in basaltic rocks can be used to trace plume-related magmatism through Earth history. Our analysis indicates the presence of a direct relationship between the intensity of plume magmatism and the supercontinent cycle, suggesting a possible dynamic coupling between supercontinent and superplume events. In addition, our analysis shows a consistent sudden drop in MgO, Ni and Cr at ~3.2–3.0 billion years ago, possibly indicating an abrupt change in mantle temperature at the start of global plate tectonics. |
| first_indexed | 2025-11-14T11:34:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-90598 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:34:37Z |
| publishDate | 2019 |
| publisher | NATURE PUBLISHING GROUP |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-905982023-03-23T01:29:55Z Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle Gamal EL Dien, Hamed Doucet, Luc Li, Zheng-Xiang Cox, Grant Mitchell, Ross Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics TRUE POLAR WANDER PLATE-TECTONICS CAUSAL LINKS MANTLE TRANSITION EVOLUTION BASALTS BENEATH PROVINCES RODINIA Plate tectonics and mantle plumes are two of the most fundamental solid-Earth processes that have operated through much of Earth history. For the past 300 million years, mantle plumes are known to derive mostly from two large low shear velocity provinces (LLSVPs) above the core-mantle boundary, referred to as the African and Pacific superplumes, but their possible connection with plate tectonics is debated. Here, we demonstrate that transition elements (Ni, Cr, and Fe/Mn) in basaltic rocks can be used to trace plume-related magmatism through Earth history. Our analysis indicates the presence of a direct relationship between the intensity of plume magmatism and the supercontinent cycle, suggesting a possible dynamic coupling between supercontinent and superplume events. In addition, our analysis shows a consistent sudden drop in MgO, Ni and Cr at ~3.2–3.0 billion years ago, possibly indicating an abrupt change in mantle temperature at the start of global plate tectonics. 2019 Journal Article http://hdl.handle.net/20.500.11937/90598 10.1038/s41467-019-13300-4 English http://purl.org/au-research/grants/arc/FL150100133 http://creativecommons.org/licenses/by/4.0/ NATURE PUBLISHING GROUP fulltext |
| spellingShingle | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics TRUE POLAR WANDER PLATE-TECTONICS CAUSAL LINKS MANTLE TRANSITION EVOLUTION BASALTS BENEATH PROVINCES RODINIA Gamal EL Dien, Hamed Doucet, Luc Li, Zheng-Xiang Cox, Grant Mitchell, Ross Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle |
| title | Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle |
| title_full | Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle |
| title_fullStr | Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle |
| title_full_unstemmed | Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle |
| title_short | Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle |
| title_sort | global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle |
| topic | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics TRUE POLAR WANDER PLATE-TECTONICS CAUSAL LINKS MANTLE TRANSITION EVOLUTION BASALTS BENEATH PROVINCES RODINIA |
| url | http://purl.org/au-research/grants/arc/FL150100133 http://hdl.handle.net/20.500.11937/90598 |