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{Cooper:2020:10.1038/s41586-020-2407-5,
author = {Cooper, GF and Macpherson, CG and Blundy, JD and Maunder, B and Allen, RW and Goes, S and Collier, JS and Bie, L and Harmon, N and Hicks, SP and Iveson, AA and Prytulak, J and Rietbrock, A and Rychert, CA and Davidson, JP},
doi = {10.1038/s41586-020-2407-5},
journal = {Nature},
pages = {525--529},
title = {Variable water input controls evolution of the Lesser Antilles volcanic arc},
url = {http://dx.doi.org/10.1038/s41586-020-2407-5},
volume = {582},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Oceanic lithosphere carries volatiles, notably water, into the mantle through subduction at convergent plate boundaries. This subducted water exercises control on the production of magma, earthquakes, formation of continental crust and mineral resources. Identifying different potential fluid sources (sediments, crust and mantle lithosphere) and tracing fluids from their release to the surface has proved challenging1. Atlantic subduction zones are a valuable endmember when studying this deep water cycle because hydration in Atlantic lithosphere, produced by slow spreading, is expected to be highly non-uniform2. Here, as part of a multi-disciplinary project in the Lesser Antilles volcanic arc3, we studied boron trace element and isotopic fingerprints of melt inclusions. These reveal that serpentine—that is, hydrated mantle rather than crust or sediments—is a dominant supplier of subducted water to the central arc. This serpentine is most likely to reside in a set of major fracture zones subducted beneath the central arc over approximately the past ten million years. The current dehydration of these fracture zones coincides with the current locations of the highest rates of earthquakes and prominent low shear velocities, whereas the preceding history of dehydration is consistent with the locations of higher volcanic productivity and thicker arc crust. These combined geochemical and geophysical data indicate that the structure and hydration of the subducted plate are directly connected to the evolution of the arc and its associated seismic and volcanic hazards.
AU  - Cooper,GF
AU  - Macpherson,CG
AU  - Blundy,JD
AU  - Maunder,B
AU  - Allen,RW
AU  - Goes,S
AU  - Collier,JS
AU  - Bie,L
AU  - Harmon,N
AU  - Hicks,SP
AU  - Iveson,AA
AU  - Prytulak,J
AU  - Rietbrock,A
AU  - Rychert,CA
AU  - Davidson,JP
DO  - 10.1038/s41586-020-2407-5
EP  - 529
PY  - 2020///
SN  - 0028-0836
SP  - 525
TI  - Variable water input controls evolution of the Lesser Antilles volcanic arc
T2  - Nature
UR  - http://dx.doi.org/10.1038/s41586-020-2407-5
UR  - https://www.nature.com/articles/s41586-020-2407-5
UR  - http://hdl.handle.net/10044/1/80302
VL  - 582
ER  -
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