Physiography of Nares Strait: importance to the origin of the Wegener Fault
Nares Strait is a long, deep trough which, at its shoreline at least, is straight. Most theories of its origin are deduced from observations remote from the Strait and even those observations adjacent to the Strait were seldom if ever taken for the express purpose of elucidating its origin. Direct o...
Published in: | Meddelelser om Grønland. Geoscience |
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Language: | English |
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The Commission for Scientific Research in Greenland /Danish Polar Center
1982
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Online Access: | https://tidsskrift.dk/meddrgroenland_geosci/article/view/141026 |
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ftkbcopenhojs:oai:ojs.tidsskrift.dk:article/141026 2024-01-28T10:03:51+01:00 Physiography of Nares Strait: importance to the origin of the Wegener Fault Monahan, David Johnson, G. Leonard 1982-06-10 application/pdf https://tidsskrift.dk/meddrgroenland_geosci/article/view/141026 eng eng The Commission for Scientific Research in Greenland /Danish Polar Center https://tidsskrift.dk/meddrgroenland_geosci/article/view/141026/184926 https://tidsskrift.dk/meddrgroenland_geosci/article/view/141026 Meddelelser om Grønland. Geoscience; Vol. 8 (1982): Meddelelser om Grønland. Geoscience; 53-64 Meddelelser om Grønland. Geoscience; Årg. 8 (1982): Meddelelser om Grønland, Geoscience; 53-64 1600-4590 0106-1046 10.7146/moggeosci.v8i info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1982 ftkbcopenhojs https://doi.org/10.7146/moggeosci.v8i 2024-01-03T23:58:29Z Nares Strait is a long, deep trough which, at its shoreline at least, is straight. Most theories of its origin are deduced from observations remote from the Strait and even those observations adjacent to the Strait were seldom if ever taken for the express purpose of elucidating its origin. Direct observations of the floor of the Strait are very scarce, yet without them the dilemma of movement or non-movement seems unresolvable. We have been able to map the gross physiography of the Strait and can deduce from it that the area has undergone compression along an approximately northwest-southeast axis. In order to resolve the dilemma of motion or no motion along Nares Strait, we suggest that a post-Palaeozoic northward movement (50-100 km) of the Canadian Arctic Islands by the process of crustal thinning in Lancaster and Jones Sounds and in the Sverdrup Basin can, when combined with geologic/geometric uncertainties, account for the present-day relatively small observed net offset. Article in Journal/Newspaper Arctic Nares strait sverdrup basin Tidsskrift.dk (The Royal Library, Denmark) Arctic Nares ENVELOPE(158.167,158.167,-81.450,-81.450) Meddelelser om Grønland. Geoscience 8 |
institution |
Open Polar |
collection |
Tidsskrift.dk (The Royal Library, Denmark) |
op_collection_id |
ftkbcopenhojs |
language |
English |
description |
Nares Strait is a long, deep trough which, at its shoreline at least, is straight. Most theories of its origin are deduced from observations remote from the Strait and even those observations adjacent to the Strait were seldom if ever taken for the express purpose of elucidating its origin. Direct observations of the floor of the Strait are very scarce, yet without them the dilemma of movement or non-movement seems unresolvable. We have been able to map the gross physiography of the Strait and can deduce from it that the area has undergone compression along an approximately northwest-southeast axis. In order to resolve the dilemma of motion or no motion along Nares Strait, we suggest that a post-Palaeozoic northward movement (50-100 km) of the Canadian Arctic Islands by the process of crustal thinning in Lancaster and Jones Sounds and in the Sverdrup Basin can, when combined with geologic/geometric uncertainties, account for the present-day relatively small observed net offset. |
format |
Article in Journal/Newspaper |
author |
Monahan, David Johnson, G. Leonard |
spellingShingle |
Monahan, David Johnson, G. Leonard Physiography of Nares Strait: importance to the origin of the Wegener Fault |
author_facet |
Monahan, David Johnson, G. Leonard |
author_sort |
Monahan, David |
title |
Physiography of Nares Strait: importance to the origin of the Wegener Fault |
title_short |
Physiography of Nares Strait: importance to the origin of the Wegener Fault |
title_full |
Physiography of Nares Strait: importance to the origin of the Wegener Fault |
title_fullStr |
Physiography of Nares Strait: importance to the origin of the Wegener Fault |
title_full_unstemmed |
Physiography of Nares Strait: importance to the origin of the Wegener Fault |
title_sort |
physiography of nares strait: importance to the origin of the wegener fault |
publisher |
The Commission for Scientific Research in Greenland /Danish Polar Center |
publishDate |
1982 |
url |
https://tidsskrift.dk/meddrgroenland_geosci/article/view/141026 |
long_lat |
ENVELOPE(158.167,158.167,-81.450,-81.450) |
geographic |
Arctic Nares |
geographic_facet |
Arctic Nares |
genre |
Arctic Nares strait sverdrup basin |
genre_facet |
Arctic Nares strait sverdrup basin |
op_source |
Meddelelser om Grønland. Geoscience; Vol. 8 (1982): Meddelelser om Grønland. Geoscience; 53-64 Meddelelser om Grønland. Geoscience; Årg. 8 (1982): Meddelelser om Grønland, Geoscience; 53-64 1600-4590 0106-1046 10.7146/moggeosci.v8i |
op_relation |
https://tidsskrift.dk/meddrgroenland_geosci/article/view/141026/184926 https://tidsskrift.dk/meddrgroenland_geosci/article/view/141026 |
op_doi |
https://doi.org/10.7146/moggeosci.v8i |
container_title |
Meddelelser om Grønland. Geoscience |
container_volume |
8 |
_version_ |
1789329362754994176 |