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Flexural isostasy: Constraints from gravity and topography power spectra

Abstract:

We have used spherical harmonic coefficients that describe Earth's gravity anomaly and topography fields to quantify the role of isostasy in contributing to crustal and upper mantle structure. Power spectra reveal that the gravity effect of topography and its flexural compensation contributes significantly to the observed free-air gravity anomaly spectra for spherical harmonic degree 33 < n < 400, which corresponds to wavelength 100 < λ < 1200 km. The best fit is for an elastic pl...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1002/2017JB014571

Authors


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Department:
Wolfson College
Role:
Author
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Grant:
National Research Fellow Awards Number NRF-NRFF2013-04
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Grant:
Research Centres of Excellence initiative
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Grant:
Research Centres of Excellence initiative
Publisher:
American Geophysical Union Publisher's website
Journal:
Journal of Geophysical Research: Solid Earth Journal website
Volume:
122
Issue:
10
Pages:
8417–8430
Publication date:
2017-10-14
Acceptance date:
2017-09-11
DOI:
ISSN:
2169-9356
Pubs id:
pubs:728818
URN:
uri:044206bc-6de8-47a4-8599-0fdce782619d
UUID:
uuid:044206bc-6de8-47a4-8599-0fdce782619d
Local pid:
pubs:728818
Paper number:
10

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