Imperial College London
Alternate

Saskia Goes

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Geophysics
 
 
 
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Contact

 

+44 (0)20 7594 6434s.goes

 
 
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Location

 

4.47Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Agrusta:2018:10.1038/s41467-018-05194-5,
author = {Agrusta, R and van, Hunen J and Goes, S},
doi = {10.1038/s41467-018-05194-5},
journal = {Nature Communications},
pages = {1--10},
title = {Strong plates enhance mantle mixing in early Earth},
url = {http://dx.doi.org/10.1038/s41467-018-05194-5},
volume = {9},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In the present-day Earth, some subducting plates (slabs) are flattening above the upper–lower mantle boundary at ~670 km depth, whereas others go through, indicating a mode between layered and whole-mantle convection. Previous models predicted that in a few hundred degree hotter early Earth, convection was likely more layered due to dominant slab stagnation. In self-consistent numerical models where slabs have a plate-like rheology, strong slabs and mobile plate boundaries favour stagnation for old and penetration for young slabs, as observed today. Here we show that such models predict slabs would have penetrated into the lower mantle more easily in a hotter Earth, when a weaker asthenosphere and decreased plate density and strength resulted in subduction almost without trench retreat. Thus, heat and material transport in the Earth’s mantle was more (rather than less) efficient in the past, which better matches the thermal evolution of the Earth.
AU  - Agrusta,R
AU  - van,Hunen J
AU  - Goes,S
DO  - 10.1038/s41467-018-05194-5
EP  - 10
PY  - 2018///
SN  - 2041-1723
SP  - 1
TI  - Strong plates enhance mantle mixing in early Earth
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/s41467-018-05194-5
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000438493800007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.nature.com/articles/s41467-018-05194-5
UR  - http://hdl.handle.net/10044/1/61612
VL  - 9
ER  -
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