Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores
A 133 m deep Antarctic ice core from Dolleman Island, Antarctic Peninsula, has been profiled by dielectric measurements in the AF‐LF (20 Hz ‐ 100 kHz) frequency range. This has revealed large variations in dielectric relaxation and conductivity down the core. A comparison with the chemical stratigra...
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American Geophysical Union
1989
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Online Access: | http://nora.nerc.ac.uk/id/eprint/521269/ https://doi.org/10.1029/GL016i010p01177 |
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ftnerc:oai:nora.nerc.ac.uk:521269 2023-05-15T13:49:35+02:00 Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores Moore, J.C. Mulvaney, Robert Paren, J.G. 1989-10 http://nora.nerc.ac.uk/id/eprint/521269/ https://doi.org/10.1029/GL016i010p01177 unknown American Geophysical Union Moore, J.C.; Mulvaney, Robert orcid:0000-0002-5372-8148 Paren, J.G. 1989 Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores. Geophysical Research Letters, 16 (10). 1177-1180. https://doi.org/10.1029/GL016i010p01177 <https://doi.org/10.1029/GL016i010p01177> Publication - Article PeerReviewed 1989 ftnerc https://doi.org/10.1029/GL016i010p01177 2023-02-04T19:47:13Z A 133 m deep Antarctic ice core from Dolleman Island, Antarctic Peninsula, has been profiled by dielectric measurements in the AF‐LF (20 Hz ‐ 100 kHz) frequency range. This has revealed large variations in dielectric relaxation and conductivity down the core. A comparison with the chemical stratigraphy along 45 m of the core demonstrates for the first time the decisive role played by acids and salts in determining the electrical behaviour of natural ice. The total ionic concentration along the ice core can be deduced from the dielectric response. This technique may be applied rapidly in the field and, as it requires no contact between ice core and electrodes, the core is maintained in pristine condition for later chemical analysis. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Dolleman Island ice core Natural Environment Research Council: NERC Open Research Archive Antarctic Antarctic Peninsula Dolleman ENVELOPE(-60.733,-60.733,-70.616,-70.616) Dolleman Island ENVELOPE(-60.750,-60.750,-70.667,-70.667) Geophysical Research Letters 16 10 1177 1180 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
A 133 m deep Antarctic ice core from Dolleman Island, Antarctic Peninsula, has been profiled by dielectric measurements in the AF‐LF (20 Hz ‐ 100 kHz) frequency range. This has revealed large variations in dielectric relaxation and conductivity down the core. A comparison with the chemical stratigraphy along 45 m of the core demonstrates for the first time the decisive role played by acids and salts in determining the electrical behaviour of natural ice. The total ionic concentration along the ice core can be deduced from the dielectric response. This technique may be applied rapidly in the field and, as it requires no contact between ice core and electrodes, the core is maintained in pristine condition for later chemical analysis. |
format |
Article in Journal/Newspaper |
author |
Moore, J.C. Mulvaney, Robert Paren, J.G. |
spellingShingle |
Moore, J.C. Mulvaney, Robert Paren, J.G. Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores |
author_facet |
Moore, J.C. Mulvaney, Robert Paren, J.G. |
author_sort |
Moore, J.C. |
title |
Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores |
title_short |
Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores |
title_full |
Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores |
title_fullStr |
Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores |
title_full_unstemmed |
Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores |
title_sort |
dielectric stratigraphy of ice: a new technique for determining total ionic concentrations in polar ice cores |
publisher |
American Geophysical Union |
publishDate |
1989 |
url |
http://nora.nerc.ac.uk/id/eprint/521269/ https://doi.org/10.1029/GL016i010p01177 |
long_lat |
ENVELOPE(-60.733,-60.733,-70.616,-70.616) ENVELOPE(-60.750,-60.750,-70.667,-70.667) |
geographic |
Antarctic Antarctic Peninsula Dolleman Dolleman Island |
geographic_facet |
Antarctic Antarctic Peninsula Dolleman Dolleman Island |
genre |
Antarc* Antarctic Antarctic Peninsula Dolleman Island ice core |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Dolleman Island ice core |
op_relation |
Moore, J.C.; Mulvaney, Robert orcid:0000-0002-5372-8148 Paren, J.G. 1989 Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores. Geophysical Research Letters, 16 (10). 1177-1180. https://doi.org/10.1029/GL016i010p01177 <https://doi.org/10.1029/GL016i010p01177> |
op_doi |
https://doi.org/10.1029/GL016i010p01177 |
container_title |
Geophysical Research Letters |
container_volume |
16 |
container_issue |
10 |
container_start_page |
1177 |
op_container_end_page |
1180 |
_version_ |
1766251822703443968 |