Iceberg Furrow Marks on the Continental Shelf Northeast of Belle Isle, Newfoundland
Side-scan sonar imagery indicates the presence of numerous large-scale furrows on the continental shelf northeast of Belle Isle, Newfoundland. The furrows are attributed to the ploughing action of bottom-dragging icebergs. They are typically linear troughs bordered by raised shoulders with an averag...
| Published in: | Canadian Journal of Earth Sciences |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Canadian Science Publishing
1974
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/e74-004 http://www.nrcresearchpress.com/doi/pdf/10.1139/e74-004 |
| Summary: | Side-scan sonar imagery indicates the presence of numerous large-scale furrows on the continental shelf northeast of Belle Isle, Newfoundland. The furrows are attributed to the ploughing action of bottom-dragging icebergs. They are typically linear troughs bordered by raised shoulders with an average width of about 30 m, a maximum observed depth of 6.5 m, and a maximum length of at least 3 km. Considered collectively, the furrows have a pronounced north-south trend, which probably reflects the general southerly drift of icebergs in the Labrador Current. |
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