Seismological evidence for a fossil subduction zone in the East Greenland Caledonides
The postorogenic collapse of the early Paleozoic Caledonian orogeny is well documented; however, several different plate tectonic models exist for the convergent phase involving closure of the Iapetus Ocean and the collision of Laurentia and Baltica. Receiver function analysis of 11 broadband seismo...
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Online Access: | https://pure.au.dk/portal/da/publications/seismological-evidence-for-a-fossil-subduction-zone-in-the-east-greenland-caledonides(e8a77a08-3878-4f73-9ce4-9c3f7883ec03).html https://doi.org/10.1130/G35244.1 http://geology.gsapubs.org/content/42/4/311.abstract |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/e8a77a08-3878-4f73-9ce4-9c3f7883ec03 2023-11-12T04:16:31+01:00 Seismological evidence for a fossil subduction zone in the East Greenland Caledonides Schiffer, Christian Balling, Niels Jacobsen, Bo H. Stephenson, Randell A. Nielsen, Søren B. 2014-04-01 https://pure.au.dk/portal/da/publications/seismological-evidence-for-a-fossil-subduction-zone-in-the-east-greenland-caledonides(e8a77a08-3878-4f73-9ce4-9c3f7883ec03).html https://doi.org/10.1130/G35244.1 http://geology.gsapubs.org/content/42/4/311.abstract eng eng https://pure.au.dk/portal/da/publications/seismological-evidence-for-a-fossil-subduction-zone-in-the-east-greenland-caledonides(e8a77a08-3878-4f73-9ce4-9c3f7883ec03).html info:eu-repo/semantics/restrictedAccess Schiffer , C , Balling , N , Jacobsen , B H , Stephenson , R A & Nielsen , S B 2014 , ' Seismological evidence for a fossil subduction zone in the East Greenland Caledonides ' , Geology , vol. 42 , no. 4 , pp. 311-314 . https://doi.org/10.1130/G35244.1 article 2014 ftuniaarhuspubl https://doi.org/10.1130/G35244.1 2023-11-01T23:58:45Z The postorogenic collapse of the early Paleozoic Caledonian orogeny is well documented; however, several different plate tectonic models exist for the convergent phase involving closure of the Iapetus Ocean and the collision of Laurentia and Baltica. Receiver function analysis of 11 broadband seismometers along a 270 km transect in the East Greenland Caledonides reveals the existence of an east-dipping high-velocity slab. Numerical modeling demonstrates that relict subducted and eclogitized crust is a plausible explanation. Thus, eastward subduction preceded subsequent west-dipping subduction during the formation of the East Greenland and Scandinavian Caledonides. This is a key constraint for understanding the Caledonian and continental margin evolution in the North Atlantic realm. Article in Journal/Newspaper East Greenland Greenland North Atlantic Aarhus University: Research Greenland Geology 42 4 311 314 |
institution |
Open Polar |
collection |
Aarhus University: Research |
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ftuniaarhuspubl |
language |
English |
description |
The postorogenic collapse of the early Paleozoic Caledonian orogeny is well documented; however, several different plate tectonic models exist for the convergent phase involving closure of the Iapetus Ocean and the collision of Laurentia and Baltica. Receiver function analysis of 11 broadband seismometers along a 270 km transect in the East Greenland Caledonides reveals the existence of an east-dipping high-velocity slab. Numerical modeling demonstrates that relict subducted and eclogitized crust is a plausible explanation. Thus, eastward subduction preceded subsequent west-dipping subduction during the formation of the East Greenland and Scandinavian Caledonides. This is a key constraint for understanding the Caledonian and continental margin evolution in the North Atlantic realm. |
format |
Article in Journal/Newspaper |
author |
Schiffer, Christian Balling, Niels Jacobsen, Bo H. Stephenson, Randell A. Nielsen, Søren B. |
spellingShingle |
Schiffer, Christian Balling, Niels Jacobsen, Bo H. Stephenson, Randell A. Nielsen, Søren B. Seismological evidence for a fossil subduction zone in the East Greenland Caledonides |
author_facet |
Schiffer, Christian Balling, Niels Jacobsen, Bo H. Stephenson, Randell A. Nielsen, Søren B. |
author_sort |
Schiffer, Christian |
title |
Seismological evidence for a fossil subduction zone in the East Greenland Caledonides |
title_short |
Seismological evidence for a fossil subduction zone in the East Greenland Caledonides |
title_full |
Seismological evidence for a fossil subduction zone in the East Greenland Caledonides |
title_fullStr |
Seismological evidence for a fossil subduction zone in the East Greenland Caledonides |
title_full_unstemmed |
Seismological evidence for a fossil subduction zone in the East Greenland Caledonides |
title_sort |
seismological evidence for a fossil subduction zone in the east greenland caledonides |
publishDate |
2014 |
url |
https://pure.au.dk/portal/da/publications/seismological-evidence-for-a-fossil-subduction-zone-in-the-east-greenland-caledonides(e8a77a08-3878-4f73-9ce4-9c3f7883ec03).html https://doi.org/10.1130/G35244.1 http://geology.gsapubs.org/content/42/4/311.abstract |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland Greenland North Atlantic |
genre_facet |
East Greenland Greenland North Atlantic |
op_source |
Schiffer , C , Balling , N , Jacobsen , B H , Stephenson , R A & Nielsen , S B 2014 , ' Seismological evidence for a fossil subduction zone in the East Greenland Caledonides ' , Geology , vol. 42 , no. 4 , pp. 311-314 . https://doi.org/10.1130/G35244.1 |
op_relation |
https://pure.au.dk/portal/da/publications/seismological-evidence-for-a-fossil-subduction-zone-in-the-east-greenland-caledonides(e8a77a08-3878-4f73-9ce4-9c3f7883ec03).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1130/G35244.1 |
container_title |
Geology |
container_volume |
42 |
container_issue |
4 |
container_start_page |
311 |
op_container_end_page |
314 |
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1782333587893256192 |