Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic

The Palaeozoic motion of the future Arctic continents is presented in the animation found in the accompanying CD-ROM. The animation shows snapshots of the motion of the tectonic blocks from 550 to 250 Ma in 3 million year steps. The locations of the blocks are controlled mainly by palaeomagnetic pol...

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Main Authors: Lawrence A. Lawver, Lisa M. Gahagan, Ian Norton
Format: Dataset
Language:unknown
Published: 2016
Subjects:
Online Access:https://doi.org/10.6084/m9.figshare.3452912
https://figshare.com/articles/Chapter_5_Palaeogeographic_and_tectonic_evolution_of_the_Arctic_region_during_the_Palaeozoic/3452912
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spelling ftgeosoclonfig:oai:figshare.com:article/3452912 2023-05-15T14:33:30+02:00 Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic Lawrence A. Lawver Lisa M. Gahagan Ian Norton 2016-06-21T10:58:44Z https://doi.org/10.6084/m9.figshare.3452912 https://figshare.com/articles/Chapter_5_Palaeogeographic_and_tectonic_evolution_of_the_Arctic_region_during_the_Palaeozoic/3452912 unknown doi:10.6084/m9.figshare.3452912 https://figshare.com/articles/Chapter_5_Palaeogeographic_and_tectonic_evolution_of_the_Arctic_region_during_the_Palaeozoic/3452912 CC BY 4.0 CC-BY Geology 6000 km Gondwana motion tectonic evolution 406 Ma palaeomagnetic poles year steps tectonic blocks Iapetus Ocean Chapter 5 Palaeogeographic animation future Arctic continents palaeomagnetic pole values 250 Ma Palaeozoic motion day plate motion Middle Cambrian Silurian Arctic region Arctic orogenies Scandian Caledonian Arctic continents Dataset Media 2016 ftgeosoclonfig https://doi.org/10.6084/m9.figshare.3452912 2020-02-21T07:24:38Z The Palaeozoic motion of the future Arctic continents is presented in the animation found in the accompanying CD-ROM. The animation shows snapshots of the motion of the tectonic blocks from 550 to 250 Ma in 3 million year steps. The locations of the blocks are controlled mainly by palaeomagnetic pole values for the blocks tied to known geological events, particularly the three main Arctic orogenies: the Scandian Caledonian which began in the Silurian, the Ellesmerian in the Late Devonian and the Uralian that began in the Late Pennsylvanian. Perhaps the most significant observation to come out of the animation is that the future Arctic continents were never very far from one another during the Palaeozoic. The maximum distance from Baltica to Laurentia may have reached 6000 km during the Middle Cambrian but the Arctic continents all surrounded the same eastern Iapetus Ocean and, by Silurian, they were quite close. Reliance on the ‘Y-loop’ palaeomagnetic data causes extremely rapid motion of Gondwana during the Silurian. Consequently the ‘X-path’ for that period is used. The palaeomagnetic poles for 422 and 406 Ma have been eliminated so that Gondwana motion is within the bounds of present day plate motion. Dataset Arctic Geological Society of London: Figshare Arctic The ''Y'' ENVELOPE(-112.453,-112.453,57.591,57.591)
institution Open Polar
collection Geological Society of London: Figshare
op_collection_id ftgeosoclonfig
language unknown
topic Geology
6000 km
Gondwana motion
tectonic evolution
406 Ma
palaeomagnetic poles
year steps
tectonic blocks
Iapetus Ocean
Chapter 5 Palaeogeographic
animation
future Arctic continents
palaeomagnetic pole values
250 Ma
Palaeozoic motion
day plate motion
Middle Cambrian
Silurian
Arctic region
Arctic orogenies
Scandian Caledonian
Arctic continents
spellingShingle Geology
6000 km
Gondwana motion
tectonic evolution
406 Ma
palaeomagnetic poles
year steps
tectonic blocks
Iapetus Ocean
Chapter 5 Palaeogeographic
animation
future Arctic continents
palaeomagnetic pole values
250 Ma
Palaeozoic motion
day plate motion
Middle Cambrian
Silurian
Arctic region
Arctic orogenies
Scandian Caledonian
Arctic continents
Lawrence A. Lawver
Lisa M. Gahagan
Ian Norton
Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic
topic_facet Geology
6000 km
Gondwana motion
tectonic evolution
406 Ma
palaeomagnetic poles
year steps
tectonic blocks
Iapetus Ocean
Chapter 5 Palaeogeographic
animation
future Arctic continents
palaeomagnetic pole values
250 Ma
Palaeozoic motion
day plate motion
Middle Cambrian
Silurian
Arctic region
Arctic orogenies
Scandian Caledonian
Arctic continents
description The Palaeozoic motion of the future Arctic continents is presented in the animation found in the accompanying CD-ROM. The animation shows snapshots of the motion of the tectonic blocks from 550 to 250 Ma in 3 million year steps. The locations of the blocks are controlled mainly by palaeomagnetic pole values for the blocks tied to known geological events, particularly the three main Arctic orogenies: the Scandian Caledonian which began in the Silurian, the Ellesmerian in the Late Devonian and the Uralian that began in the Late Pennsylvanian. Perhaps the most significant observation to come out of the animation is that the future Arctic continents were never very far from one another during the Palaeozoic. The maximum distance from Baltica to Laurentia may have reached 6000 km during the Middle Cambrian but the Arctic continents all surrounded the same eastern Iapetus Ocean and, by Silurian, they were quite close. Reliance on the ‘Y-loop’ palaeomagnetic data causes extremely rapid motion of Gondwana during the Silurian. Consequently the ‘X-path’ for that period is used. The palaeomagnetic poles for 422 and 406 Ma have been eliminated so that Gondwana motion is within the bounds of present day plate motion.
format Dataset
author Lawrence A. Lawver
Lisa M. Gahagan
Ian Norton
author_facet Lawrence A. Lawver
Lisa M. Gahagan
Ian Norton
author_sort Lawrence A. Lawver
title Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic
title_short Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic
title_full Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic
title_fullStr Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic
title_full_unstemmed Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic
title_sort chapter 5 palaeogeographic and tectonic evolution of the arctic region during the palaeozoic
publishDate 2016
url https://doi.org/10.6084/m9.figshare.3452912
https://figshare.com/articles/Chapter_5_Palaeogeographic_and_tectonic_evolution_of_the_Arctic_region_during_the_Palaeozoic/3452912
long_lat ENVELOPE(-112.453,-112.453,57.591,57.591)
geographic Arctic
The ''Y''
geographic_facet Arctic
The ''Y''
genre Arctic
genre_facet Arctic
op_relation doi:10.6084/m9.figshare.3452912
https://figshare.com/articles/Chapter_5_Palaeogeographic_and_tectonic_evolution_of_the_Arctic_region_during_the_Palaeozoic/3452912
op_rights CC BY 4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.6084/m9.figshare.3452912
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