Seismic Evidence of a Wet Zone Under the West Antarctic Ice Sheet

Abstract It appears to be possible to identify certain conditions of thermal regime at the base of a glacier through the seismic reflection method. In some cases layers of water or wet rock debris may be identifiable. The procedure is based upon the reversal of phase of reflected dilatational waves...

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Bibliographic Details
Published in:Journal of Glaciology
Main Author: Dewart, Gilbert
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1976
Subjects:
Earth-Surface Processes
Antarctic
West Antarctic Ice Sheet
Antarc*
Ice Sheet
Journal of Glaciology
Online Access:http://dx.doi.org/10.1017/s0022143000031439
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000031439
id crcambridgeupr:10.1017/s0022143000031439
record_format openpolar
spelling crcambridgeupr:10.1017/s0022143000031439 2024-03-03T08:37:54+00:00 Seismic Evidence of a Wet Zone Under the West Antarctic Ice Sheet Dewart, Gilbert 1976 http://dx.doi.org/10.1017/s0022143000031439 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000031439 en eng Cambridge University Press (CUP) Journal of Glaciology volume 16, issue 74, page 73-88 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1976 crcambridgeupr https://doi.org/10.1017/s0022143000031439 2024-02-08T08:36:15Z Abstract It appears to be possible to identify certain conditions of thermal regime at the base of a glacier through the seismic reflection method. In some cases layers of water or wet rock debris may be identifiable. The procedure is based upon the reversal of phase of reflected dilatational waves at the interface between ice and a substratum of lower acoustic impedance. Illustrations of the method are given from the west Antarctic ice sheet, and suggestions are made for the improvement of the technique. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Journal of Glaciology Cambridge University Press Antarctic West Antarctic Ice Sheet Journal of Glaciology 16 74 73 88
institution Open Polar
collection Cambridge University Press
op_collection_id crcambridgeupr
language English
topic Earth-Surface Processes
spellingShingle Earth-Surface Processes
Dewart, Gilbert
Seismic Evidence of a Wet Zone Under the West Antarctic Ice Sheet
topic_facet Earth-Surface Processes
description Abstract It appears to be possible to identify certain conditions of thermal regime at the base of a glacier through the seismic reflection method. In some cases layers of water or wet rock debris may be identifiable. The procedure is based upon the reversal of phase of reflected dilatational waves at the interface between ice and a substratum of lower acoustic impedance. Illustrations of the method are given from the west Antarctic ice sheet, and suggestions are made for the improvement of the technique.
format Article in Journal/Newspaper
author Dewart, Gilbert
author_facet Dewart, Gilbert
author_sort Dewart, Gilbert
title Seismic Evidence of a Wet Zone Under the West Antarctic Ice Sheet
title_short Seismic Evidence of a Wet Zone Under the West Antarctic Ice Sheet
title_full Seismic Evidence of a Wet Zone Under the West Antarctic Ice Sheet
title_fullStr Seismic Evidence of a Wet Zone Under the West Antarctic Ice Sheet
title_full_unstemmed Seismic Evidence of a Wet Zone Under the West Antarctic Ice Sheet
title_sort seismic evidence of a wet zone under the west antarctic ice sheet
publisher Cambridge University Press (CUP)
publishDate 1976
url http://dx.doi.org/10.1017/s0022143000031439
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000031439
geographic Antarctic
West Antarctic Ice Sheet
geographic_facet Antarctic
West Antarctic Ice Sheet
genre Antarc*
Antarctic
Ice Sheet
Journal of Glaciology
genre_facet Antarc*
Antarctic
Ice Sheet
Journal of Glaciology
op_source Journal of Glaciology
volume 16, issue 74, page 73-88
ISSN 0022-1430 1727-5652
op_doi https://doi.org/10.1017/s0022143000031439
container_title Journal of Glaciology
container_volume 16
container_issue 74
container_start_page 73
op_container_end_page 88
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