Shear velocity in the lower mantle from explosion data
A new technique utilizing theoretical wave forms has been developed to determine precise shear wave travel times. This technique was applied to long-period World-Wide Standard Seismograph Network and Canadian network seismograms of five large nuclear explosions to obtain a surface focus shear wave d...
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American Geophysical Union
1975
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ftcaltechauth:oai:authors.library.caltech.edu:75517 2023-05-15T17:47:13+02:00 Shear velocity in the lower mantle from explosion data Hart, Robert S. 1975-12-10 application/pdf https://authors.library.caltech.edu/75517/ https://authors.library.caltech.edu/75517/1/Hart-1975-Journal_of_Geophysical_Research-_Solid_Earth_%281978-2012%29.pdf https://resolver.caltech.edu/CaltechAUTHORS:20170329-141550771 en eng American Geophysical Union https://authors.library.caltech.edu/75517/1/Hart-1975-Journal_of_Geophysical_Research-_Solid_Earth_%281978-2012%29.pdf Hart, Robert S. (1975) Shear velocity in the lower mantle from explosion data. Journal of Geophysical Research, 80 (35). pp. 4889-4894. ISSN 0148-0227. doi:10.1029/JB080i035p04889. https://resolver.caltech.edu/CaltechAUTHORS:20170329-141550771 <https://resolver.caltech.edu/CaltechAUTHORS:20170329-141550771> other Article PeerReviewed 1975 ftcaltechauth https://doi.org/10.1029/JB080i035p04889 2021-11-18T18:41:21Z A new technique utilizing theoretical wave forms has been developed to determine precise shear wave travel times. This technique was applied to long-period World-Wide Standard Seismograph Network and Canadian network seismograms of five large nuclear explosions to obtain a surface focus shear wave data set containing about 100 travel times for distances greater than 30°. Very little scatter is present in the data from Novaya Zemlya and the Nevada test site, and so a reliable inversion to a lower mantle velocity structure is permitted. This velocity model, based on the 59 travel times from Novaya Zemlya, has significantly more structure than earlier models. The model, Sl, has proved to be appropriate for free oscillations as well as for travel times. This model should be useful in studying both lateral inhomogeneities and the mineralogical composition of the earth's mantle. Article in Journal/Newspaper Novaya Zemlya Caltech Authors (California Institute of Technology) Journal of Geophysical Research 80 35 4889 4894 |
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Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
A new technique utilizing theoretical wave forms has been developed to determine precise shear wave travel times. This technique was applied to long-period World-Wide Standard Seismograph Network and Canadian network seismograms of five large nuclear explosions to obtain a surface focus shear wave data set containing about 100 travel times for distances greater than 30°. Very little scatter is present in the data from Novaya Zemlya and the Nevada test site, and so a reliable inversion to a lower mantle velocity structure is permitted. This velocity model, based on the 59 travel times from Novaya Zemlya, has significantly more structure than earlier models. The model, Sl, has proved to be appropriate for free oscillations as well as for travel times. This model should be useful in studying both lateral inhomogeneities and the mineralogical composition of the earth's mantle. |
format |
Article in Journal/Newspaper |
author |
Hart, Robert S. |
spellingShingle |
Hart, Robert S. Shear velocity in the lower mantle from explosion data |
author_facet |
Hart, Robert S. |
author_sort |
Hart, Robert S. |
title |
Shear velocity in the lower mantle from explosion data |
title_short |
Shear velocity in the lower mantle from explosion data |
title_full |
Shear velocity in the lower mantle from explosion data |
title_fullStr |
Shear velocity in the lower mantle from explosion data |
title_full_unstemmed |
Shear velocity in the lower mantle from explosion data |
title_sort |
shear velocity in the lower mantle from explosion data |
publisher |
American Geophysical Union |
publishDate |
1975 |
url |
https://authors.library.caltech.edu/75517/ https://authors.library.caltech.edu/75517/1/Hart-1975-Journal_of_Geophysical_Research-_Solid_Earth_%281978-2012%29.pdf https://resolver.caltech.edu/CaltechAUTHORS:20170329-141550771 |
genre |
Novaya Zemlya |
genre_facet |
Novaya Zemlya |
op_relation |
https://authors.library.caltech.edu/75517/1/Hart-1975-Journal_of_Geophysical_Research-_Solid_Earth_%281978-2012%29.pdf Hart, Robert S. (1975) Shear velocity in the lower mantle from explosion data. Journal of Geophysical Research, 80 (35). pp. 4889-4894. ISSN 0148-0227. doi:10.1029/JB080i035p04889. https://resolver.caltech.edu/CaltechAUTHORS:20170329-141550771 <https://resolver.caltech.edu/CaltechAUTHORS:20170329-141550771> |
op_rights |
other |
op_doi |
https://doi.org/10.1029/JB080i035p04889 |
container_title |
Journal of Geophysical Research |
container_volume |
80 |
container_issue |
35 |
container_start_page |
4889 |
op_container_end_page |
4894 |
_version_ |
1766151580404416512 |