scholarly journals Ancient subducted oceans controlling the positioning of deep mantle plumes

2019 ◽  
Author(s):  
Philip Heron ◽  
Juliane Dannberg ◽  
Rene Gassmöller ◽  
Grace Shephard ◽  
Jeroen van Hunen ◽  
...  
Keyword(s):  
2018 ◽  
Vol 123 (1) ◽  
pp. 384-400 ◽  
Author(s):  
Ross Maguire ◽  
Jeroen Ritsema ◽  
Mickaël Bonnin ◽  
Peter E. van Keken ◽  
Saskia Goes

2006 ◽  
Vol 7 (11) ◽  
pp. n/a-n/a ◽  
Author(s):  
R. Montelli ◽  
G. Nolet ◽  
F. A. Dahlen ◽  
G. Masters

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Nicolas Luca Celli ◽  
Sergei Lebedev ◽  
Andrew J. Schaeffer ◽  
Carmen Gaina

AbstractHow 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.


Nature ◽  
1974 ◽  
Vol 247 (5438) ◽  
pp. 191-193 ◽  
Author(s):  
D. F. STRONG
Keyword(s):  

2019 ◽  
Vol 10 (3) ◽  
pp. 173-178
Author(s):  
Matthew R. Edwards

Geology ◽  
2001 ◽  
Vol 29 (8) ◽  
pp. 695 ◽  
Author(s):  
Valérie Clouard ◽  
Alain Bonneville
Keyword(s):  

1985 ◽  
Vol 80 (1) ◽  
pp. 241-255 ◽  
Author(s):  
Alan Paul BOSS ◽  
I. Selwyn Sacks
Keyword(s):  

Author(s):  
Jeroen Ritsema ◽  
Ross Maguire ◽  
Laura Cobden ◽  
Saskia Goes

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