The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea
Geomagnetic variation fields recorded at a particular location can be analysed to provide information on the distribution of induced currents within the Earth. An analysis of the variation fields on South Georgia, in the Scotia Sea, has revealed some unusual features in the geomagnetic response char...
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British Antarctic Survey
1983
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ftnerc:oai:nora.nerc.ac.uk:513323 2023-05-15T15:46:51+02:00 The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea Beamish, D. Hamilton, R.A. 1983 text http://nora.nerc.ac.uk/id/eprint/513323/ https://nora.nerc.ac.uk/id/eprint/513323/1/NORA_1983_BAS_bulletin59_02.pdf https://www.bas.ac.uk/data/our-data/our-publications/bas-bulletins-1963-1988/ en eng British Antarctic Survey https://nora.nerc.ac.uk/id/eprint/513323/1/NORA_1983_BAS_bulletin59_02.pdf Beamish, D.; Hamilton, R.A. 1983 The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea. British Antarctic Survey Bulletin, 59. 1-8. Earth Sciences Publication - Article PeerReviewed 1983 ftnerc 2023-02-04T19:42:55Z Geomagnetic variation fields recorded at a particular location can be analysed to provide information on the distribution of induced currents within the Earth. An analysis of the variation fields on South Georgia, in the Scotia Sea, has revealed some unusual features in the geomagnetic response characterizing the distribution of internal currents. Both vertical and horizontal components of the variation fields appear anomalous with respect to the behaviour expected for a deep ocean island such as South Georgia. It is suggested that the anomalous variations can be accounted for by lithospheric conductivity contrasts between the older South American and much younger Scotia plates. Article in Journal/Newspaper British Antarctic Survey Bulletin Scotia Sea Ocean Island Natural Environment Research Council: NERC Open Research Archive Scotia Sea |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Beamish, D. Hamilton, R.A. The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea |
topic_facet |
Earth Sciences |
description |
Geomagnetic variation fields recorded at a particular location can be analysed to provide information on the distribution of induced currents within the Earth. An analysis of the variation fields on South Georgia, in the Scotia Sea, has revealed some unusual features in the geomagnetic response characterizing the distribution of internal currents. Both vertical and horizontal components of the variation fields appear anomalous with respect to the behaviour expected for a deep ocean island such as South Georgia. It is suggested that the anomalous variations can be accounted for by lithospheric conductivity contrasts between the older South American and much younger Scotia plates. |
format |
Article in Journal/Newspaper |
author |
Beamish, D. Hamilton, R.A. |
author_facet |
Beamish, D. Hamilton, R.A. |
author_sort |
Beamish, D. |
title |
The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea |
title_short |
The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea |
title_full |
The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea |
title_fullStr |
The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea |
title_full_unstemmed |
The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea |
title_sort |
influence of tectonic boundaries on geomagnetic variations in the scotia sea |
publisher |
British Antarctic Survey |
publishDate |
1983 |
url |
http://nora.nerc.ac.uk/id/eprint/513323/ https://nora.nerc.ac.uk/id/eprint/513323/1/NORA_1983_BAS_bulletin59_02.pdf https://www.bas.ac.uk/data/our-data/our-publications/bas-bulletins-1963-1988/ |
geographic |
Scotia Sea |
geographic_facet |
Scotia Sea |
genre |
British Antarctic Survey Bulletin Scotia Sea Ocean Island |
genre_facet |
British Antarctic Survey Bulletin Scotia Sea Ocean Island |
op_relation |
https://nora.nerc.ac.uk/id/eprint/513323/1/NORA_1983_BAS_bulletin59_02.pdf Beamish, D.; Hamilton, R.A. 1983 The influence of tectonic boundaries on geomagnetic variations in the Scotia Sea. British Antarctic Survey Bulletin, 59. 1-8. |
_version_ |
1766381599865176064 |