A geomorphological overview of glacial landforms on the Icelandic continental shelf
The availability of a bathymetric database that covers about 80% of the Icelandic shelf has made it possible to produce a geomorphological map of the glacial landforms. The digital elevation model of the bathymetry was analyzed as a series of shaded relief images. Trough edges, bulging trough mouths...
Published in: | Journal of Maps |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Journal of Maps, Kingston University
2009
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Online Access: | https://eprints.whiterose.ac.uk/10366/ https://eprints.whiterose.ac.uk/10366/1/Clark_maps.pdf https://eprints.whiterose.ac.uk/10366/2/Clark_maps2.pdf https://doi.org/10.4113/jom.2009.1049 |
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ftleedsuniv:oai:eprints.whiterose.ac.uk:10366 2024-06-02T08:08:17+00:00 A geomorphological overview of glacial landforms on the Icelandic continental shelf Spagnolo, M. Clark, C.D. 2009 text https://eprints.whiterose.ac.uk/10366/ https://eprints.whiterose.ac.uk/10366/1/Clark_maps.pdf https://eprints.whiterose.ac.uk/10366/2/Clark_maps2.pdf https://doi.org/10.4113/jom.2009.1049 en eng Journal of Maps, Kingston University https://eprints.whiterose.ac.uk/10366/1/Clark_maps.pdf https://eprints.whiterose.ac.uk/10366/2/Clark_maps2.pdf Spagnolo, M. and Clark, C.D. (2009) A geomorphological overview of glacial landforms on the Icelandic continental shelf. Journal of Maps , 2009. pp. 37-52. ISSN 1744-5647 Article PeerReviewed 2009 ftleedsuniv https://doi.org/10.4113/jom.2009.1049 2024-05-06T12:36:32Z The availability of a bathymetric database that covers about 80% of the Icelandic shelf has made it possible to produce a geomorphological map of the glacial landforms. The digital elevation model of the bathymetry was analyzed as a series of shaded relief images. Trough edges, bulging trough mouths, moraines, eskers, melt water channels, streamlined bedrock and streamlined drift, mostly hitherto unmapped, distributed all around the island have been identified. Moraines are found on the shelf, within troughs and inside fjords. Streamlined landforms are always confined to the bottom of troughs. Troughs appear to have been cut by ice streams draining an ice sheet that likely covered the entire shelf. At the shelf break, most troughs terminate with contours that bulge in a convex-outwards fashion. This suggests that an ice stream eroded, transported and finally deposited large amounts of sediment at the trough mouth. Overall, the glacial morphology of the shelf highlights a radial pattern that indicates a main ice divide near the centre of Iceland. Article in Journal/Newspaper Ice Sheet Iceland White Rose Research Online (Universities of Leeds, Sheffield & York) Journal of Maps 5 1 37 52 |
institution |
Open Polar |
collection |
White Rose Research Online (Universities of Leeds, Sheffield & York) |
op_collection_id |
ftleedsuniv |
language |
English |
description |
The availability of a bathymetric database that covers about 80% of the Icelandic shelf has made it possible to produce a geomorphological map of the glacial landforms. The digital elevation model of the bathymetry was analyzed as a series of shaded relief images. Trough edges, bulging trough mouths, moraines, eskers, melt water channels, streamlined bedrock and streamlined drift, mostly hitherto unmapped, distributed all around the island have been identified. Moraines are found on the shelf, within troughs and inside fjords. Streamlined landforms are always confined to the bottom of troughs. Troughs appear to have been cut by ice streams draining an ice sheet that likely covered the entire shelf. At the shelf break, most troughs terminate with contours that bulge in a convex-outwards fashion. This suggests that an ice stream eroded, transported and finally deposited large amounts of sediment at the trough mouth. Overall, the glacial morphology of the shelf highlights a radial pattern that indicates a main ice divide near the centre of Iceland. |
format |
Article in Journal/Newspaper |
author |
Spagnolo, M. Clark, C.D. |
spellingShingle |
Spagnolo, M. Clark, C.D. A geomorphological overview of glacial landforms on the Icelandic continental shelf |
author_facet |
Spagnolo, M. Clark, C.D. |
author_sort |
Spagnolo, M. |
title |
A geomorphological overview of glacial landforms on the Icelandic continental shelf |
title_short |
A geomorphological overview of glacial landforms on the Icelandic continental shelf |
title_full |
A geomorphological overview of glacial landforms on the Icelandic continental shelf |
title_fullStr |
A geomorphological overview of glacial landforms on the Icelandic continental shelf |
title_full_unstemmed |
A geomorphological overview of glacial landforms on the Icelandic continental shelf |
title_sort |
geomorphological overview of glacial landforms on the icelandic continental shelf |
publisher |
Journal of Maps, Kingston University |
publishDate |
2009 |
url |
https://eprints.whiterose.ac.uk/10366/ https://eprints.whiterose.ac.uk/10366/1/Clark_maps.pdf https://eprints.whiterose.ac.uk/10366/2/Clark_maps2.pdf https://doi.org/10.4113/jom.2009.1049 |
genre |
Ice Sheet Iceland |
genre_facet |
Ice Sheet Iceland |
op_relation |
https://eprints.whiterose.ac.uk/10366/1/Clark_maps.pdf https://eprints.whiterose.ac.uk/10366/2/Clark_maps2.pdf Spagnolo, M. and Clark, C.D. (2009) A geomorphological overview of glacial landforms on the Icelandic continental shelf. Journal of Maps , 2009. pp. 37-52. ISSN 1744-5647 |
op_doi |
https://doi.org/10.4113/jom.2009.1049 |
container_title |
Journal of Maps |
container_volume |
5 |
container_issue |
1 |
container_start_page |
37 |
op_container_end_page |
52 |
_version_ |
1800753480456994816 |