Imperial College London
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ProfessorJamieWilkinson

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Geology
 
 
 
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Contact

 

j.wilkinson Website

 
 
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Location

 

PA418Natural History MuseumNatural History Museum

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Summary

 

Publications

Citation

BibTex format

@article{Hicks:2023:10.1126/sciadv.add2143,
author = {Hicks, S and Bie, L and Rychert, C and Harmon, N and Goes, S and Rietbrock, A and Wei, SS and Collier, J and Henstock, T and Lynch, L and Prytulak, J and Macpherson, C and Schlaphorst, D and Wilkinson, J and Blundy, J and Cooper, G and Davy, R and Kendall, J-M and VoiLA, Working Group},
doi = {10.1126/sciadv.add2143},
journal = {Science Advances},
pages = {1--14},
title = {Slab to back-arc to arc: fluid and melt pathways through the mantle wedge beneath the Lesser Antilles},
url = {http://dx.doi.org/10.1126/sciadv.add2143},
volume = {9},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Volatiles expelled from subducted plates promote melting of the overlying warm mantle, feeding arc volcanism. However, debates continue over the factors controlling melt generation and transport, and how these determine the placement of volcanoes. To broaden our synoptic view of these fundamental mantle wedge processes, we image seismic attenuation beneath the Lesser Antilles arc, an end-member system that slowly subducts old, tectonized lithosphere. Punctuated anomalies with high ratios of bulk-to-shear attenuation (Qκ−1/Qμ−1 > 0.6) and VP/VS (>1.83) lie 40 km above the slab, representing expelled fluids that are retained in a cold boundary layer, transporting fluids toward the back-arc. The strongest attenuation (1000/QS ~ 20), characterizing melt in warm mantle, lies beneath the back-arc, revealing how back-arc mantle feeds arc volcanoes. Melt ponds under the upper plate and percolates toward the arc along structures from earlier back-arc spreading, demonstrating how slab dehydration, upper-plate properties, past tectonics, and resulting melt pathways collectively condition volcanism.
AU  - Hicks,S
AU  - Bie,L
AU  - Rychert,C
AU  - Harmon,N
AU  - Goes,S
AU  - Rietbrock,A
AU  - Wei,SS
AU  - Collier,J
AU  - Henstock,T
AU  - Lynch,L
AU  - Prytulak,J
AU  - Macpherson,C
AU  - Schlaphorst,D
AU  - Wilkinson,J
AU  - Blundy,J
AU  - Cooper,G
AU  - Davy,R
AU  - Kendall,J-M
AU  - VoiLA,Working Group
DO  - 10.1126/sciadv.add2143
EP  - 14
PY  - 2023///
SN  - 2375-2548
SP  - 1
TI  - Slab to back-arc to arc: fluid and melt pathways through the mantle wedge beneath the Lesser Antilles
T2  - Science Advances
UR  - http://dx.doi.org/10.1126/sciadv.add2143
UR  - https://www.science.org/doi/10.1126/sciadv.add2143
UR  - http://hdl.handle.net/10044/1/102632
VL  - 9
ER  -
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