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Gravity anomalies, flexure and mantle rheology seaward of circum-Pacific trenches

Abstract:

We have used ensemble averages of satellite-derived free-air gravity anomaly data, together with inverse modelling techniques, to determine the effective elastic thickness, Te, of circum- Pacific subducting oceanic lithosphere and its relationship to plate age. Synthetic modelling tests show that Te can be recovered best using gravity anomaly, rather than bathymetry, data and profiles that are at least 750 km long. Inverse modelling based on a uniform Te elastic plate suggests that Te increas...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1093/gji/ggw275

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Institution:
University of Oxford
Oxford college:
Wolfson College
Role:
Author
Publisher:
Oxford University Press Publisher's website
Journal:
Geophysical Journal International Journal website
Volume:
207
Issue:
1
Pages:
288-316
Publication date:
2016-07-01
Acceptance date:
2016-07-20
DOI:
ISSN:
0956-540X and 1365-246X
Source identifiers:
652422
Keywords:
Pubs id:
pubs:652422
UUID:
uuid:c746bab7-e69f-4984-a649-3826ae9784dd
Local pid:
pubs:652422
Deposit date:
2017-03-02

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