The Nagssugtoqidian Orogen of West Greenland:Tectonic evolution and regional correlations from a West Greenland perspective
The Nagssugtoqidian Orogen of West Greenland represents a belt of Palaeoproterozoic deformation and metamorphism between the North Atlantic Craton of South Greenland and a northern, lesser known continental segment that includes the Rinkian Orogen. First-order observations are interpreted to support...
Published in: | Canadian Journal of Earth Sciences |
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Language: | English |
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2002
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Online Access: | https://curis.ku.dk/portal/da/publications/the-nagssugtoqidian-orogen-of-west-greenland(e6b4c663-605a-407a-b7b0-cc5da7dd1fd8).html https://doi.org/10.1139/e02-027 http://www.scopus.com/inward/record.url?scp=0035997180&partnerID=8YFLogxK |
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ftcopenhagenunip:oai:pure.atira.dk:publications/e6b4c663-605a-407a-b7b0-cc5da7dd1fd8 2023-05-15T13:22:18+02:00 The Nagssugtoqidian Orogen of West Greenland:Tectonic evolution and regional correlations from a West Greenland perspective Van Gool, Jeroen A.M. Connelly, James N. Marker, Mogens Mengel, Flemming C. 2002 https://curis.ku.dk/portal/da/publications/the-nagssugtoqidian-orogen-of-west-greenland(e6b4c663-605a-407a-b7b0-cc5da7dd1fd8).html https://doi.org/10.1139/e02-027 http://www.scopus.com/inward/record.url?scp=0035997180&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Van Gool , J A M , Connelly , J N , Marker , M & Mengel , F C 2002 , ' The Nagssugtoqidian Orogen of West Greenland : Tectonic evolution and regional correlations from a West Greenland perspective ' , Canadian Journal of Earth Sciences , vol. 39 , no. 5 , pp. 665-686 . https://doi.org/10.1139/e02-027 article 2002 ftcopenhagenunip https://doi.org/10.1139/e02-027 2023-02-01T23:54:39Z The Nagssugtoqidian Orogen of West Greenland represents a belt of Palaeoproterozoic deformation and metamorphism between the North Atlantic Craton of South Greenland and a northern, lesser known continental segment that includes the Rinkian Orogen. First-order observations are interpreted to support a cycle of separation, convergence, and eventual collision of two continental masses. The emplacement of the Kangâmiut dyke swarm marked the onset of continental breakup at ca. 2040 Ma, and sedimentary basins formed between ca. 1950 and 1920 Ma. Subsequent convergence and consumption of an oceanic plate caused arc magmatism at 1920-1870 Ma. Granulite-facies peak metamorphism at 1860-1840 Ma in the centre of the orogen is related to crustal thickening by WNW-directed thrusting. Large-scale, upright folding with an east-west trend was ongoing by 1825 Ma. Sinistral strike-slip movement was concentrated along steeply dipping limbs of these large-scale folds and formed orogen-scale steep belts at ca. 1775 Ma. Close similarities between the northern and southern foreland suggest that the two cratons likely originated from one continuous continental block. Temporal and kinematic correlation of these events with adjoining orogens in Canada and Greenland shows close genetic links. The Nagssugtoqidian Orogen of West Greenland continues eastwards beneath the Greenland Ice cap to the Eastern Nagssugtoqidian belt of East Greenland (a.k.a. the Ammassalik belt). The Torngat Orogen of eastern Canada developed simultaneous with the Nagssugtoqidian Orogen with a kinematic compatibility suggesting that the two orogens formed on the west and north flanks, respectively, of a curved leading continental margin of an indenting North Atlantic Craton. Article in Journal/Newspaper Ammassalik East Greenland Greenland Ice cap North Atlantic University of Copenhagen: Research Canada Greenland Canadian Journal of Earth Sciences 39 5 665 686 |
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Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
The Nagssugtoqidian Orogen of West Greenland represents a belt of Palaeoproterozoic deformation and metamorphism between the North Atlantic Craton of South Greenland and a northern, lesser known continental segment that includes the Rinkian Orogen. First-order observations are interpreted to support a cycle of separation, convergence, and eventual collision of two continental masses. The emplacement of the Kangâmiut dyke swarm marked the onset of continental breakup at ca. 2040 Ma, and sedimentary basins formed between ca. 1950 and 1920 Ma. Subsequent convergence and consumption of an oceanic plate caused arc magmatism at 1920-1870 Ma. Granulite-facies peak metamorphism at 1860-1840 Ma in the centre of the orogen is related to crustal thickening by WNW-directed thrusting. Large-scale, upright folding with an east-west trend was ongoing by 1825 Ma. Sinistral strike-slip movement was concentrated along steeply dipping limbs of these large-scale folds and formed orogen-scale steep belts at ca. 1775 Ma. Close similarities between the northern and southern foreland suggest that the two cratons likely originated from one continuous continental block. Temporal and kinematic correlation of these events with adjoining orogens in Canada and Greenland shows close genetic links. The Nagssugtoqidian Orogen of West Greenland continues eastwards beneath the Greenland Ice cap to the Eastern Nagssugtoqidian belt of East Greenland (a.k.a. the Ammassalik belt). The Torngat Orogen of eastern Canada developed simultaneous with the Nagssugtoqidian Orogen with a kinematic compatibility suggesting that the two orogens formed on the west and north flanks, respectively, of a curved leading continental margin of an indenting North Atlantic Craton. |
format |
Article in Journal/Newspaper |
author |
Van Gool, Jeroen A.M. Connelly, James N. Marker, Mogens Mengel, Flemming C. |
spellingShingle |
Van Gool, Jeroen A.M. Connelly, James N. Marker, Mogens Mengel, Flemming C. The Nagssugtoqidian Orogen of West Greenland:Tectonic evolution and regional correlations from a West Greenland perspective |
author_facet |
Van Gool, Jeroen A.M. Connelly, James N. Marker, Mogens Mengel, Flemming C. |
author_sort |
Van Gool, Jeroen A.M. |
title |
The Nagssugtoqidian Orogen of West Greenland:Tectonic evolution and regional correlations from a West Greenland perspective |
title_short |
The Nagssugtoqidian Orogen of West Greenland:Tectonic evolution and regional correlations from a West Greenland perspective |
title_full |
The Nagssugtoqidian Orogen of West Greenland:Tectonic evolution and regional correlations from a West Greenland perspective |
title_fullStr |
The Nagssugtoqidian Orogen of West Greenland:Tectonic evolution and regional correlations from a West Greenland perspective |
title_full_unstemmed |
The Nagssugtoqidian Orogen of West Greenland:Tectonic evolution and regional correlations from a West Greenland perspective |
title_sort |
nagssugtoqidian orogen of west greenland:tectonic evolution and regional correlations from a west greenland perspective |
publishDate |
2002 |
url |
https://curis.ku.dk/portal/da/publications/the-nagssugtoqidian-orogen-of-west-greenland(e6b4c663-605a-407a-b7b0-cc5da7dd1fd8).html https://doi.org/10.1139/e02-027 http://www.scopus.com/inward/record.url?scp=0035997180&partnerID=8YFLogxK |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Ammassalik East Greenland Greenland Ice cap North Atlantic |
genre_facet |
Ammassalik East Greenland Greenland Ice cap North Atlantic |
op_source |
Van Gool , J A M , Connelly , J N , Marker , M & Mengel , F C 2002 , ' The Nagssugtoqidian Orogen of West Greenland : Tectonic evolution and regional correlations from a West Greenland perspective ' , Canadian Journal of Earth Sciences , vol. 39 , no. 5 , pp. 665-686 . https://doi.org/10.1139/e02-027 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1139/e02-027 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
39 |
container_issue |
5 |
container_start_page |
665 |
op_container_end_page |
686 |
_version_ |
1766364177997234176 |