Reassessment of a reported S‐delay under Trindade

H. C. Nataf; T. Lay; D. L. Anderson; E. A. Okal

doi:10.1029/GL008i010p01027

Reassessment of a reported S‐delay under Trindade

H. C. Nataf^*, T. Lay, D. L. Anderson, E. A. Okal

^*Corresponding author for this work

Earth and Planetary Sciences

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We present a correction to a paper by Okal and Anderson (1975) about multiple ScS travel‐time anomalies. We have reanalyzed data for ScS₂ surface bounces in the South Atlantic Ocean. From these data an ScS₂‐S residual of 23.6 seconds was found by Okal and Anderson (1975). This corresponded to an ScS₂ surface bounce point under Trindade island and was inferred to be due to very slow upper mantle associated with the Trindade hot spot. The analysis we present here invalidates this conclusion. The nature of the upper mantle under Trindade is an open issue.

Original language	English (US)
Pages (from-to)	1027-1030
Number of pages	4
Journal	Geophysical Research Letters
Volume	8
Issue number	10
DOIs	https://doi.org/10.1029/GL008i010p01027
State	Published - Oct 1981

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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title = "Reassessment of a reported S‐delay under Trindade",

abstract = "We present a correction to a paper by Okal and Anderson (1975) about multiple ScS travel‐time anomalies. We have reanalyzed data for ScS2 surface bounces in the South Atlantic Ocean. From these data an ScS2‐S residual of 23.6 seconds was found by Okal and Anderson (1975). This corresponded to an ScS2 surface bounce point under Trindade island and was inferred to be due to very slow upper mantle associated with the Trindade hot spot. The analysis we present here invalidates this conclusion. The nature of the upper mantle under Trindade is an open issue.",

author = "Nataf, {H. C.} and T. Lay and Anderson, {D. L.} and Okal, {E. A.}",

year = "1981",

month = oct,

doi = "10.1029/GL008i010p01027",

language = "English (US)",

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pages = "1027--1030",

journal = "Geophysical Research Letters",

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T1 - Reassessment of a reported S‐delay under Trindade

AU - Nataf, H. C.

AU - Lay, T.

AU - Anderson, D. L.

AU - Okal, E. A.

PY - 1981/10

Y1 - 1981/10

N2 - We present a correction to a paper by Okal and Anderson (1975) about multiple ScS travel‐time anomalies. We have reanalyzed data for ScS2 surface bounces in the South Atlantic Ocean. From these data an ScS2‐S residual of 23.6 seconds was found by Okal and Anderson (1975). This corresponded to an ScS2 surface bounce point under Trindade island and was inferred to be due to very slow upper mantle associated with the Trindade hot spot. The analysis we present here invalidates this conclusion. The nature of the upper mantle under Trindade is an open issue.

AB - We present a correction to a paper by Okal and Anderson (1975) about multiple ScS travel‐time anomalies. We have reanalyzed data for ScS2 surface bounces in the South Atlantic Ocean. From these data an ScS2‐S residual of 23.6 seconds was found by Okal and Anderson (1975). This corresponded to an ScS2 surface bounce point under Trindade island and was inferred to be due to very slow upper mantle associated with the Trindade hot spot. The analysis we present here invalidates this conclusion. The nature of the upper mantle under Trindade is an open issue.

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DO - 10.1029/GL008i010p01027

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EP - 1030

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 10

ER -

Reassessment of a reported S‐delay under Trindade

Abstract

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