Imperial College London
Portrait Picture

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{Allen:2019:10.1130/G46708.1,
author = {Allen, R and Collier, J and Stewart, A and Henstock, T and Goes, S and Rietbrock, A},
doi = {10.1130/G46708.1},
journal = {Geology},
pages = {891--895},
title = {The role of arc migration in the development of the Lesser Antilles: a new tectonic model for the Cenozoic evolution of  the eastern Caribbean},
url = {http://dx.doi.org/10.1130/G46708.1},
volume = {47},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Continental arc systems often show evidence of large-scale migration both towards and away from the incoming plate. In oceanic arc systems however, whilst slab roll-back and the associated processes of back-arc spreading and arc migration towards the incoming plate are commonplace, arc migration away from the incoming plate is rarely observed. We present a new compilation of marine magnetic anomaly and seismic data in order to propose a new tectonic model for the eastern Caribbean region that includes arc migration in both directions. We synthesise new evidence to show two phases of back-arc spreading and eastward arc migration towards the incoming Atlantic. A third and final phase of arc migration to the west subdivided the earlier back-arc basin on either side of the present-day Lesser Antilles Arc. This is the first example of regional multi-directional arc migration in an intra-oceanic setting and has implications for along-arc structural and geochemical variations. The back and forth arc migrations are probably due to the constraints the neighbouring American plates impose on this isolated subduction system rather than variations in subducting slab buoyancy.
AU  - Allen,R
AU  - Collier,J
AU  - Stewart,A
AU  - Henstock,T
AU  - Goes,S
AU  - Rietbrock,A
DO  - 10.1130/G46708.1
EP  - 895
PY  - 2019///
SN  - 0091-7613
SP  - 891
TI  - The role of arc migration in the development of the Lesser Antilles: a new tectonic model for the Cenozoic evolution of  the eastern Caribbean
T2  - Geology
UR  - http://dx.doi.org/10.1130/G46708.1
UR  - http://hdl.handle.net/10044/1/71169
VL  - 47
ER  -
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