Reinterpretation of the North American apparent polar wander curve for the interval 800–1500 Ma
We have reviewed the geochronology of rocks having paleopoles in the interval 800–1500 Ma from North America, Greenland, and the Baltic Shield. The present uncertainties in the acquisition times of the remanent magnitizations allow the construction of a simplified apparent polar wander curve for Nor...
Published in: | Canadian Journal of Earth Sciences |
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Language: | English |
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Canadian Science Publishing
1980
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Online Access: | http://dx.doi.org/10.1139/e80-128 http://www.nrcresearchpress.com/doi/pdf/10.1139/e80-128 |
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crcansciencepubl:10.1139/e80-128 2023-12-17T10:30:58+01:00 Reinterpretation of the North American apparent polar wander curve for the interval 800–1500 Ma Berger, Glenn W. York, Derek 1980 http://dx.doi.org/10.1139/e80-128 http://www.nrcresearchpress.com/doi/pdf/10.1139/e80-128 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 17, issue 9, page 1229-1235 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1980 crcansciencepubl https://doi.org/10.1139/e80-128 2023-11-19T13:39:03Z We have reviewed the geochronology of rocks having paleopoles in the interval 800–1500 Ma from North America, Greenland, and the Baltic Shield. The present uncertainties in the acquisition times of the remanent magnitizations allow the construction of a simplified apparent polar wander curve for North America that incorporates Sveconorwegian paleopoles in a Grenville Loop, and that places poles from the El Paso, Stoer Group, and Aillik Bay rocks on the Logan Loop. Furthermore, the sense of motion through poles older than ~ 1.3 Ga is reversed to permit the shortest connection to poles older than 1.6 Ga. As well, the timing and shape of the Hadrynian Track are modified so that it begins in the Atlantic hemisphere at ~ 800 Ma and terminates in the Pacific at ~ 650 Ma, representing a minimum average continental drift rate of ~ 10 cm/year for this interval. Article in Journal/Newspaper Greenland Canadian Science Publishing (via Crossref) Greenland Pacific Canadian Journal of Earth Sciences 17 9 1229 1235 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Berger, Glenn W. York, Derek Reinterpretation of the North American apparent polar wander curve for the interval 800–1500 Ma |
topic_facet |
General Earth and Planetary Sciences |
description |
We have reviewed the geochronology of rocks having paleopoles in the interval 800–1500 Ma from North America, Greenland, and the Baltic Shield. The present uncertainties in the acquisition times of the remanent magnitizations allow the construction of a simplified apparent polar wander curve for North America that incorporates Sveconorwegian paleopoles in a Grenville Loop, and that places poles from the El Paso, Stoer Group, and Aillik Bay rocks on the Logan Loop. Furthermore, the sense of motion through poles older than ~ 1.3 Ga is reversed to permit the shortest connection to poles older than 1.6 Ga. As well, the timing and shape of the Hadrynian Track are modified so that it begins in the Atlantic hemisphere at ~ 800 Ma and terminates in the Pacific at ~ 650 Ma, representing a minimum average continental drift rate of ~ 10 cm/year for this interval. |
format |
Article in Journal/Newspaper |
author |
Berger, Glenn W. York, Derek |
author_facet |
Berger, Glenn W. York, Derek |
author_sort |
Berger, Glenn W. |
title |
Reinterpretation of the North American apparent polar wander curve for the interval 800–1500 Ma |
title_short |
Reinterpretation of the North American apparent polar wander curve for the interval 800–1500 Ma |
title_full |
Reinterpretation of the North American apparent polar wander curve for the interval 800–1500 Ma |
title_fullStr |
Reinterpretation of the North American apparent polar wander curve for the interval 800–1500 Ma |
title_full_unstemmed |
Reinterpretation of the North American apparent polar wander curve for the interval 800–1500 Ma |
title_sort |
reinterpretation of the north american apparent polar wander curve for the interval 800–1500 ma |
publisher |
Canadian Science Publishing |
publishDate |
1980 |
url |
http://dx.doi.org/10.1139/e80-128 http://www.nrcresearchpress.com/doi/pdf/10.1139/e80-128 |
geographic |
Greenland Pacific |
geographic_facet |
Greenland Pacific |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Canadian Journal of Earth Sciences volume 17, issue 9, page 1229-1235 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e80-128 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
17 |
container_issue |
9 |
container_start_page |
1229 |
op_container_end_page |
1235 |
_version_ |
1785584105359933440 |