Reassessment of a reported S-delay under Trindade

A correction to a paper by Okal and Anderson (1975) about multiple ScS travel-time anomalies is presented. Data for ScS2 surface bounces in the South Atlantic Ocean have been reanalyzed. From these data an ScS2-S residual of 23.6 seconds was found by Okal and Anderson (1975). This corresponded to an...

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Main Authors: Nataf, H. C., Lay, T., Anderson, D. L., Okal, E. A.
Format: Other/Unknown Material
Language:unknown
Published: 1981
Subjects:
46
Online Access:http://ntrs.nasa.gov/search.jsp?R=19820033840
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record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19820033840 2023-05-15T18:20:57+02:00 Reassessment of a reported S-delay under Trindade Nataf, H. C. Lay, T. Anderson, D. L. Okal, E. A. Unclassified, Unlimited, Publicly available Oct 1, 1981 http://ntrs.nasa.gov/search.jsp?R=19820033840 unknown http://ntrs.nasa.gov/search.jsp?R=19820033840 Accession ID: 82A17375 Copyright Other Sources 46 Geophysical Research Letters; 8; Oct. 198 1981 ftnasantrs 2012-02-15T15:00:30Z A correction to a paper by Okal and Anderson (1975) about multiple ScS travel-time anomalies is presented. Data for ScS2 surface bounces in the South Atlantic Ocean have been reanalyzed. 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 presented here invalidates this conclusion. The nature of the upper mantle under Trindade is an open issue. Other/Unknown Material South Atlantic Ocean NASA Technical Reports Server (NTRS)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 46
spellingShingle 46
Nataf, H. C.
Lay, T.
Anderson, D. L.
Okal, E. A.
Reassessment of a reported S-delay under Trindade
topic_facet 46
description A correction to a paper by Okal and Anderson (1975) about multiple ScS travel-time anomalies is presented. Data for ScS2 surface bounces in the South Atlantic Ocean have been reanalyzed. 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 presented here invalidates this conclusion. The nature of the upper mantle under Trindade is an open issue.
format Other/Unknown Material
author Nataf, H. C.
Lay, T.
Anderson, D. L.
Okal, E. A.
author_facet Nataf, H. C.
Lay, T.
Anderson, D. L.
Okal, E. A.
author_sort Nataf, H. C.
title Reassessment of a reported S-delay under Trindade
title_short Reassessment of a reported S-delay under Trindade
title_full Reassessment of a reported S-delay under Trindade
title_fullStr Reassessment of a reported S-delay under Trindade
title_full_unstemmed Reassessment of a reported S-delay under Trindade
title_sort reassessment of a reported s-delay under trindade
publishDate 1981
url http://ntrs.nasa.gov/search.jsp?R=19820033840
op_coverage Unclassified, Unlimited, Publicly available
genre South Atlantic Ocean
genre_facet South Atlantic Ocean
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19820033840
Accession ID: 82A17375
op_rights Copyright
_version_ 1766199881815293952