Paleotectonic and paleogeographic history of the Arctic region
Paleogeographic maps represent the ultimate synthesis of complex and extensive geologic data and express pictorially the hypothetical landscape of some region during a given time-slice of deep geologic time. Such maps, presented as paired paleogeographic and paleotectonic reconstructions, have been...
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ftuninewbrunojs:oai:ojs.journals.lib.unb.ca:article/31495 2023-05-15T14:34:48+02:00 Paleotectonic and paleogeographic history of the Arctic region Blakey, Ron 2021-01-24 text/html application/pdf https://journals.lib.unb.ca/index.php/ag/article/view/31495 eng eng Atlantic Geoscience Society https://journals.lib.unb.ca/index.php/ag/article/view/31495/1882528111 https://journals.lib.unb.ca/index.php/ag/article/view/31495/1882526998 https://journals.lib.unb.ca/index.php/ag/article/view/31495 Copyright (c) 2021 Atlantic Geology Atlantic Geoscience; Vol. 57 (2021); 007 - 039 2564-2987 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2021 ftuninewbrunojs 2022-07-11T11:42:19Z Paleogeographic maps represent the ultimate synthesis of complex and extensive geologic data and express pictorially the hypothetical landscape of some region during a given time-slice of deep geologic time. Such maps, presented as paired paleogeographic and paleotectonic reconstructions, have been developed to portray the geologic history of the greater Arctic region over the past 400 million years. Collectively they depict four major episodes in the development of the Arctic region. The first episode witnessed early and middle Paleozoic terrane assembly and accretion during the Caledonian and Ellesmerian orogenies, which brought together many pieces of the Arctic collage along the northern margin of Laurussia. During the second phase, the assembly of Pangea in the late Paleozoic joined Siberia to Laurussia, an entity that became Laurasia during the subsequent break-up of Pangea. Then, Mesozoic subduction and terrane accretion constructed the Cordilleran margin and opened the Canada Basin. Finally, Cenozoic North Atlantic sea-floor spreading fully opened the Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean canada basin North Atlantic Siberia University of New Brunswick: Centre for Digital Scholarship Journals Arctic Arctic Ocean Canada |
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University of New Brunswick: Centre for Digital Scholarship Journals |
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ftuninewbrunojs |
language |
English |
description |
Paleogeographic maps represent the ultimate synthesis of complex and extensive geologic data and express pictorially the hypothetical landscape of some region during a given time-slice of deep geologic time. Such maps, presented as paired paleogeographic and paleotectonic reconstructions, have been developed to portray the geologic history of the greater Arctic region over the past 400 million years. Collectively they depict four major episodes in the development of the Arctic region. The first episode witnessed early and middle Paleozoic terrane assembly and accretion during the Caledonian and Ellesmerian orogenies, which brought together many pieces of the Arctic collage along the northern margin of Laurussia. During the second phase, the assembly of Pangea in the late Paleozoic joined Siberia to Laurussia, an entity that became Laurasia during the subsequent break-up of Pangea. Then, Mesozoic subduction and terrane accretion constructed the Cordilleran margin and opened the Canada Basin. Finally, Cenozoic North Atlantic sea-floor spreading fully opened the Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Blakey, Ron |
spellingShingle |
Blakey, Ron Paleotectonic and paleogeographic history of the Arctic region |
author_facet |
Blakey, Ron |
author_sort |
Blakey, Ron |
title |
Paleotectonic and paleogeographic history of the Arctic region |
title_short |
Paleotectonic and paleogeographic history of the Arctic region |
title_full |
Paleotectonic and paleogeographic history of the Arctic region |
title_fullStr |
Paleotectonic and paleogeographic history of the Arctic region |
title_full_unstemmed |
Paleotectonic and paleogeographic history of the Arctic region |
title_sort |
paleotectonic and paleogeographic history of the arctic region |
publisher |
Atlantic Geoscience Society |
publishDate |
2021 |
url |
https://journals.lib.unb.ca/index.php/ag/article/view/31495 |
geographic |
Arctic Arctic Ocean Canada |
geographic_facet |
Arctic Arctic Ocean Canada |
genre |
Arctic Arctic Ocean canada basin North Atlantic Siberia |
genre_facet |
Arctic Arctic Ocean canada basin North Atlantic Siberia |
op_source |
Atlantic Geoscience; Vol. 57 (2021); 007 - 039 2564-2987 |
op_relation |
https://journals.lib.unb.ca/index.php/ag/article/view/31495/1882528111 https://journals.lib.unb.ca/index.php/ag/article/view/31495/1882526998 https://journals.lib.unb.ca/index.php/ag/article/view/31495 |
op_rights |
Copyright (c) 2021 Atlantic Geology |
_version_ |
1766307764164886528 |