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DOI | 10.1038/s41467-019-13871-2 |
African cratonic lithosphere carved by mantle plumes | |
Celli, Nicolas Luca1,2; Lebedev, Sergei1; Schaeffer, Andrew J.3; Gaina, Carmen4 | |
2020-01-03 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Ireland; Australia; Norway |
英文摘要 | How cratons, the ancient cores of continents, evolved since their formation over 2.5 Ga ago is debated. Seismic tomography can map the thick lithosphere of cratons, but its resolution is low in sparsely sampled continents. Here we show, using waveform tomography with a large, newly available dataset, that cratonic lithosphere beneath Africa is more complex and fragmented than seen previously. Most known diamondiferous kimberlites, indicative of thick lithosphere at the time of eruption, are where the lithosphere is thin today, implying surprisingly widespread lithospheric erosion over the last 200 Ma. Large igneous provinces, attributed to deep-mantle plumes, were emplaced near all lithosphere-loss locations, concurrently with or preceding the loss. This suggests that the cratonic roots foundered once modified by mantle plumes. Our results imply that the total volume of cratonic lithosphere has decreased since its Archean formation, with the fate of each craton depending on its movements relative to plumes. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551408700005 |
WOS关键词 | AUTOMATED MULTIMODE INVERSION ; LARGE IGNEOUS PROVINCES ; WAVE-FORM INVERSION ; CONTINENTAL LITHOSPHERE ; SEISMIC EVIDENCE ; EAST-AFRICA ; EVOLUTION ; TOMOGRAPHY ; BENEATH ; SURFACE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/249945 |
专题 | 资源环境科学 |
作者单位 | 1.Dublin Inst Adv Studies, Dublin, Ireland; 2.Trinity Coll Dublin, Dublin, Ireland; 3.Nat Resources Canada, Sidney Subdiv, Pacific Div, Geol Survey Canada, Sydney, NSW, Australia; 4.Univ Oslo, Ctr Earth Evolut & Dynam CEED, Oslo, Norway |
推荐引用方式 GB/T 7714 | Celli, Nicolas Luca,Lebedev, Sergei,Schaeffer, Andrew J.,et al. African cratonic lithosphere carved by mantle plumes[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Celli, Nicolas Luca,Lebedev, Sergei,Schaeffer, Andrew J.,&Gaina, Carmen.(2020).African cratonic lithosphere carved by mantle plumes.NATURE COMMUNICATIONS,11(1). |
MLA | Celli, Nicolas Luca,et al."African cratonic lithosphere carved by mantle plumes".NATURE COMMUNICATIONS 11.1(2020). |
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