A seismic refraction experiment in 2000 on the Mizuho Plateau, East Antarctica (JARE-41) -Outline of observations-
A seismic refraction experiment was successfully conducted along the S17-Z20 profile on the Mizuho route, in East Antarctica, in the austral summer season of 1999-2000 (JARE-41). One hundred sixty seismic stations were temporarily installed along the profile about 180km long and five large shots wit...
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National Institute of Polar Research
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ftdoajarticles:oai:doaj.org/article:1d8f676e471340bb83df86849de1ca8a 2023-05-15T13:38:32+02:00 A seismic refraction experiment in 2000 on the Mizuho Plateau, East Antarctica (JARE-41) -Outline of observations- Hiroki Miyamachi Hiroshi Murakami Tomoki Tsutsui Shigeru Toda Toshiaki Minta Morio Yanagisawa 2001-03-01T00:00:00Z https://doi.org/10.15094/00009155 https://doaj.org/article/1d8f676e471340bb83df86849de1ca8a EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00009155 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00009155 0085-7289 2432-079X https://doaj.org/article/1d8f676e471340bb83df86849de1ca8a Antarctic Record, Vol 45, Iss 1, Pp 101-147 (2001) Geography (General) G1-922 article 2001 ftdoajarticles https://doi.org/10.15094/00009155 2022-12-31T14:50:07Z A seismic refraction experiment was successfully conducted along the S17-Z20 profile on the Mizuho route, in East Antarctica, in the austral summer season of 1999-2000 (JARE-41). One hundred sixty seismic stations were temporarily installed along the profile about 180km long and five large shots with dynamite of about 600kg were fired. In addition, two shots with charge sizes of 250kg and 25kg were arranged along the profile. The obtained seismic records show the clear onsets of the first arrivals in a distance range of less than 100km from each large shot. In particular, seismic waves traveling through the ice sheet and the dispersed surface waves are distinctly observed. Some later phases are also detected. The first travel time data obtained show that a P-wave velocity in the ice sheet is 3.6-3.8km/s and an apparent velocity in the rock basement just beneath the ice sheet is almost 6.2km/s. This report describes the basic outline of the experiment and the seismic data obtained. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Ice Sheet Directory of Open Access Journals: DOAJ Articles Austral East Antarctica Mizuho ENVELOPE(44.317,44.317,-70.683,-70.683) Mizuho Plateau ENVELOPE(40.000,40.000,-73.000,-73.000) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Hiroki Miyamachi Hiroshi Murakami Tomoki Tsutsui Shigeru Toda Toshiaki Minta Morio Yanagisawa A seismic refraction experiment in 2000 on the Mizuho Plateau, East Antarctica (JARE-41) -Outline of observations- |
topic_facet |
Geography (General) G1-922 |
description |
A seismic refraction experiment was successfully conducted along the S17-Z20 profile on the Mizuho route, in East Antarctica, in the austral summer season of 1999-2000 (JARE-41). One hundred sixty seismic stations were temporarily installed along the profile about 180km long and five large shots with dynamite of about 600kg were fired. In addition, two shots with charge sizes of 250kg and 25kg were arranged along the profile. The obtained seismic records show the clear onsets of the first arrivals in a distance range of less than 100km from each large shot. In particular, seismic waves traveling through the ice sheet and the dispersed surface waves are distinctly observed. Some later phases are also detected. The first travel time data obtained show that a P-wave velocity in the ice sheet is 3.6-3.8km/s and an apparent velocity in the rock basement just beneath the ice sheet is almost 6.2km/s. This report describes the basic outline of the experiment and the seismic data obtained. |
format |
Article in Journal/Newspaper |
author |
Hiroki Miyamachi Hiroshi Murakami Tomoki Tsutsui Shigeru Toda Toshiaki Minta Morio Yanagisawa |
author_facet |
Hiroki Miyamachi Hiroshi Murakami Tomoki Tsutsui Shigeru Toda Toshiaki Minta Morio Yanagisawa |
author_sort |
Hiroki Miyamachi |
title |
A seismic refraction experiment in 2000 on the Mizuho Plateau, East Antarctica (JARE-41) -Outline of observations- |
title_short |
A seismic refraction experiment in 2000 on the Mizuho Plateau, East Antarctica (JARE-41) -Outline of observations- |
title_full |
A seismic refraction experiment in 2000 on the Mizuho Plateau, East Antarctica (JARE-41) -Outline of observations- |
title_fullStr |
A seismic refraction experiment in 2000 on the Mizuho Plateau, East Antarctica (JARE-41) -Outline of observations- |
title_full_unstemmed |
A seismic refraction experiment in 2000 on the Mizuho Plateau, East Antarctica (JARE-41) -Outline of observations- |
title_sort |
seismic refraction experiment in 2000 on the mizuho plateau, east antarctica (jare-41) -outline of observations- |
publisher |
National Institute of Polar Research |
publishDate |
2001 |
url |
https://doi.org/10.15094/00009155 https://doaj.org/article/1d8f676e471340bb83df86849de1ca8a |
long_lat |
ENVELOPE(44.317,44.317,-70.683,-70.683) ENVELOPE(40.000,40.000,-73.000,-73.000) |
geographic |
Austral East Antarctica Mizuho Mizuho Plateau |
geographic_facet |
Austral East Antarctica Mizuho Mizuho Plateau |
genre |
Antarc* Antarctica East Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctica East Antarctica Ice Sheet |
op_source |
Antarctic Record, Vol 45, Iss 1, Pp 101-147 (2001) |
op_relation |
http://doi.org/10.15094/00009155 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00009155 0085-7289 2432-079X https://doaj.org/article/1d8f676e471340bb83df86849de1ca8a |
op_doi |
https://doi.org/10.15094/00009155 |
_version_ |
1766107583690571776 |