Cretaceous-Tertiary magmatic and tectonic events in North Greenland and the history of adjacent ocean basins
Greenland emerged as a separate entity during the break-up of the Laurasian plate in Palaeogene time. Research in the last decade has revealed some of the magmatic and tectonic events which were associated with the development of Greenland's northern margin: late Cretaceous basic dyke swarms, a...
Published in: | Meddelelser om Grønland. Geoscience |
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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/139582 |
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ftkbcopenhojs:oai:ojs.tidsskrift.dk:article/139582 2024-01-28T10:04:38+01:00 Cretaceous-Tertiary magmatic and tectonic events in North Greenland and the history of adjacent ocean basins Soper, Norman J. Dawes, Peter R. Higgins, Anthony K. 1982-06-10 application/pdf https://tidsskrift.dk/meddrgroenland_geosci/article/view/139582 eng eng The Commission for Scientific Research in Greenland /Danish Polar Center https://tidsskrift.dk/meddrgroenland_geosci/article/view/139582/183599 https://tidsskrift.dk/meddrgroenland_geosci/article/view/139582 Meddelelser om Grønland. Geoscience; Vol. 8 (1982): Meddelelser om Grønland. Geoscience; 205-220 Meddelelser om Grønland. Geoscience; Årg. 8 (1982): Meddelelser om Grønland, Geoscience; 205-220 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 Greenland emerged as a separate entity during the break-up of the Laurasian plate in Palaeogene time. Research in the last decade has revealed some of the magmatic and tectonic events which were associated with the development of Greenland's northern margin: late Cretaceous basic dyke swarms, an explosive volcanic province (Kap Washington Group) dated as end-Cretaceous, a thrust zone of late Paleocene - Eocene age and a later Tertiary period of fault reactivation related to regional uplift. The north-eastern (Wandel Sea) margin was affected by compressional and extensional deformations. The evidence for this sequence of events is outlined together with chemical data which characterise the igneous activity as alkalic, of ‘within-plate' type. A coherent pattern can be discerned between the onshore geological history and the spreading history of adjacent ocean basins, when the revised polarity time scale of Hailwood et al. (1979) is used as a link. We show how the geological evidence from North Greenland provides a number of important constraints on the timing and magnitude of displacements between Greenland and Canada in the Labrador Sea and Baffin Bay and also along Nares Strait. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Greenland Kap Washington Labrador Sea Nares strait North Greenland Wandel Sea Tidsskrift.dk (The Royal Library, Denmark) Baffin Bay Canada Greenland Kap ENVELOPE(23.567,23.567,65.533,65.533) Kap Washington ENVELOPE(-38.000,-38.000,83.517,83.517) Nares ENVELOPE(158.167,158.167,-81.450,-81.450) Wandel ENVELOPE(-64.000,-64.000,-65.083,-65.083) Meddelelser om Grønland. Geoscience 8 |
institution |
Open Polar |
collection |
Tidsskrift.dk (The Royal Library, Denmark) |
op_collection_id |
ftkbcopenhojs |
language |
English |
description |
Greenland emerged as a separate entity during the break-up of the Laurasian plate in Palaeogene time. Research in the last decade has revealed some of the magmatic and tectonic events which were associated with the development of Greenland's northern margin: late Cretaceous basic dyke swarms, an explosive volcanic province (Kap Washington Group) dated as end-Cretaceous, a thrust zone of late Paleocene - Eocene age and a later Tertiary period of fault reactivation related to regional uplift. The north-eastern (Wandel Sea) margin was affected by compressional and extensional deformations. The evidence for this sequence of events is outlined together with chemical data which characterise the igneous activity as alkalic, of ‘within-plate' type. A coherent pattern can be discerned between the onshore geological history and the spreading history of adjacent ocean basins, when the revised polarity time scale of Hailwood et al. (1979) is used as a link. We show how the geological evidence from North Greenland provides a number of important constraints on the timing and magnitude of displacements between Greenland and Canada in the Labrador Sea and Baffin Bay and also along Nares Strait. |
format |
Article in Journal/Newspaper |
author |
Soper, Norman J. Dawes, Peter R. Higgins, Anthony K. |
spellingShingle |
Soper, Norman J. Dawes, Peter R. Higgins, Anthony K. Cretaceous-Tertiary magmatic and tectonic events in North Greenland and the history of adjacent ocean basins |
author_facet |
Soper, Norman J. Dawes, Peter R. Higgins, Anthony K. |
author_sort |
Soper, Norman J. |
title |
Cretaceous-Tertiary magmatic and tectonic events in North Greenland and the history of adjacent ocean basins |
title_short |
Cretaceous-Tertiary magmatic and tectonic events in North Greenland and the history of adjacent ocean basins |
title_full |
Cretaceous-Tertiary magmatic and tectonic events in North Greenland and the history of adjacent ocean basins |
title_fullStr |
Cretaceous-Tertiary magmatic and tectonic events in North Greenland and the history of adjacent ocean basins |
title_full_unstemmed |
Cretaceous-Tertiary magmatic and tectonic events in North Greenland and the history of adjacent ocean basins |
title_sort |
cretaceous-tertiary magmatic and tectonic events in north greenland and the history of adjacent ocean basins |
publisher |
The Commission for Scientific Research in Greenland /Danish Polar Center |
publishDate |
1982 |
url |
https://tidsskrift.dk/meddrgroenland_geosci/article/view/139582 |
long_lat |
ENVELOPE(23.567,23.567,65.533,65.533) ENVELOPE(-38.000,-38.000,83.517,83.517) ENVELOPE(158.167,158.167,-81.450,-81.450) ENVELOPE(-64.000,-64.000,-65.083,-65.083) |
geographic |
Baffin Bay Canada Greenland Kap Kap Washington Nares Wandel |
geographic_facet |
Baffin Bay Canada Greenland Kap Kap Washington Nares Wandel |
genre |
Baffin Bay Baffin Bay Baffin Greenland Kap Washington Labrador Sea Nares strait North Greenland Wandel Sea |
genre_facet |
Baffin Bay Baffin Bay Baffin Greenland Kap Washington Labrador Sea Nares strait North Greenland Wandel Sea |
op_source |
Meddelelser om Grønland. Geoscience; Vol. 8 (1982): Meddelelser om Grønland. Geoscience; 205-220 Meddelelser om Grønland. Geoscience; Årg. 8 (1982): Meddelelser om Grønland, Geoscience; 205-220 1600-4590 0106-1046 10.7146/moggeosci.v8i |
op_relation |
https://tidsskrift.dk/meddrgroenland_geosci/article/view/139582/183599 https://tidsskrift.dk/meddrgroenland_geosci/article/view/139582 |
op_doi |
https://doi.org/10.7146/moggeosci.v8i |
container_title |
Meddelelser om Grønland. Geoscience |
container_volume |
8 |
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1789330412567265280 |