Journal article
Observations of core-mantle boundary stoneley modes
- Abstract:
- Core-mantle boundary (CMB) Stoneley modes represent a unique class of normal modes with extremely strong sensitivity to wave speed and density variations in the D" region. We measure splitting functions of eight CMB Stoneley modes using modal spectra from 93 events with Mw> 7.4 between 1976 and 2011. The obtained splitting function maps correlate well with the predicted splitting calculated for S20RTS+Crust5.1 structure and the distribution of Sdiff and Pdiff travel time anomalies, suggesting that they are robust. We illustrate how our new CMB Stoneley mode splitting functions can be used to estimate density variations in the Earth's lowermost mantle.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 971.4KB, Terms of use)
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(Supplementary materials, zip, 56.6KB, Terms of use)
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- Publisher copy:
- 10.1002/grl.50514
Authors
+ Leverhulme Trust
More from this funder
- Funder identifier:
- https://ror.org/012mzw131
- Funding agency for:
- Deuss, A
- Grant:
- Philip Leverhulme Prize
+ European Research Council
More from this funder
- Funder identifier:
- https://ror.org/0472cxd90
- Funding agency for:
- Koelemeijer, P
- Deuss, A
- Grant:
- Nahum Scholarship in Physics
- Graduate Studentship
- Philip Leverhulme Prize
+ U.S. National Science Foundation
More from this funder
- Funder identifier:
- https://ror.org/021nxhr62
- Funding agency for:
- Ritsema, J
- Grant:
- EAR-1014749
+ Pembroke College, Cambridge
More from this funder
- Funding agency for:
- Koelemeijer, P
- Grant:
- Nahum Scholarship in Physics
- Graduate Studentship
- Publisher:
- Wiley
- Journal:
- Geophysical Research Letters More from this journal
- Volume:
- 40
- Issue:
- 11
- Pages:
- 2557-2561
- Publication date:
- 2013-06-04
- Acceptance date:
- 2013-04-26
- DOI:
- EISSN:
-
1944-8007
- ISSN:
-
0094-8276
- Language:
-
English
- Keywords:
- Pubs id:
-
pubs:582984
- UUID:
-
uuid:0637c12b-0a80-4e2c-b235-e515f5189ccb
- Local pid:
-
pubs:582984
- Source identifiers:
-
582984
- Deposit date:
-
2016-03-31
- ARK identifier:
Terms of use
- Copyright holder:
- American Geophysical Union
- Copyright date:
- 2013
- Rights statement:
- © 2013. American Geophysical Union. All Rights Reserved.
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