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DOI | 10.1038/s41561-018-0251-0 |
Widespread volcanism in the Greenland-North Atlantic region explained by the Iceland plume | |
Steinberger, Bernhard1,2; Bredow, Eva1,8; Lebedev, Sergei3; Schaeffer, Andrew3,4,5; Torsvik, Trond H.1,2,6,7 | |
2019 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:1页码:61-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Norway; Ireland; Canada; South Africa |
英文摘要 | In the classical concept, a hotspot track is a line of volcanics formed as a plate moves over a stationary mantle plume. Defying this concept, intraplate volcanism in Greenland and the North Atlantic region occurred simultaneously over a wide area, particularly around 60 million years ago, showing no resemblance to a hotspot track. Here, we show that most of this volcanism can nonetheless be explained solely by the Iceland plume interacting with seafloor spreading ridges, global mantle flow and a litho-sphere (the outermost rigid layer of the Earth) with strongly variable thickness. An east-west corridor of thinned lithosphere across central Greenland, as inferred from new, highly resolved tomographic images, could have formed as Greenland moved westward over the Iceland plume between 90 and 60 million years ago. Our numerical geodynamic model demonstrates how plume material may have accumulated in this corridor and in areas east and west of Greenland. Simultaneous plume-related volcanic activities starting about 62 million years ago on either side of Greenland could occur where and when the lithosphere was thin enough due to continental rifting and seafloor spreading, possibly long after the plume reached the base of the lithosphere. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000454010200012 |
WOS关键词 | AUTOMATED MULTIMODE INVERSION ; MANTLE PLUME ; HOT-SPOT ; IGNEOUS PROVINCE ; CONTINENTAL BREAKUP ; EXCESS TEMPERATURES ; THERMAL STRUCTURE ; SEISMIC STRUCTURE ; PLATE-TECTONICS ; HOTSPOT TRACKS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/35112 |
专题 | 地球科学 气候变化 |
作者单位 | 1.GFZ German Res Ctr Geosci, Sect 2 5 Geodynam Modelling, Potsdam, Germany; 2.Univ Oslo, CEED, Oslo, Norway; 3.Dublin Inst Adv Studies, Sch Cosm Phys, Geophys Sect, Dublin, Ireland; 4.Geol Survey Canada, Pacific Geosci Ctr, Sidney, BC, Canada; 5.Univ Ottawa, Dept Earth Sci, Ottawa, ON, Canada; 6.Geol Survey Norway NGU, Trondheim, Norway; 7.Univ Witwatersrand, Sch Geosci, Johannesburg, South Africa; 8.Christian Albrechts Univ Kiel, Inst Geosci, Kiel, Germany |
推荐引用方式 GB/T 7714 | Steinberger, Bernhard,Bredow, Eva,Lebedev, Sergei,et al. Widespread volcanism in the Greenland-North Atlantic region explained by the Iceland plume[J]. NATURE GEOSCIENCE,2019,12(1):61-+. |
APA | Steinberger, Bernhard,Bredow, Eva,Lebedev, Sergei,Schaeffer, Andrew,&Torsvik, Trond H..(2019).Widespread volcanism in the Greenland-North Atlantic region explained by the Iceland plume.NATURE GEOSCIENCE,12(1),61-+. |
MLA | Steinberger, Bernhard,et al."Widespread volcanism in the Greenland-North Atlantic region explained by the Iceland plume".NATURE GEOSCIENCE 12.1(2019):61-+. |
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