An isostatic origin for basement uplifts
The tectonics involved in the structural development of uplifts in the stable platforms are suggested to be a natural consequence of loading the platform by sedimentary rocks. Any original compensated topography on the platform will cause differential loading with sediments thicker and the load grea...
Published in: | Canadian Journal of Earth Sciences |
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Language: | English |
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Canadian Science Publishing
1970
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Online Access: | http://dx.doi.org/10.1139/e70-088 http://www.nrcresearchpress.com/doi/pdf/10.1139/e70-088 |
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crcansciencepubl:10.1139/e70-088 2024-09-15T18:29:11+00:00 An isostatic origin for basement uplifts Walcott, R. I. 1970 http://dx.doi.org/10.1139/e70-088 http://www.nrcresearchpress.com/doi/pdf/10.1139/e70-088 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 7, issue 3, page 931-937 ISSN 0008-4077 1480-3313 journal-article 1970 crcansciencepubl https://doi.org/10.1139/e70-088 2024-07-25T04:10:07Z The tectonics involved in the structural development of uplifts in the stable platforms are suggested to be a natural consequence of loading the platform by sedimentary rocks. Any original compensated topography on the platform will cause differential loading with sediments thicker and the load greater in the valleys than over the hills. If the wavelength of topography is large, differential vertical movements can occur causing an amplification of the original topography and the growth of an arch. If the wavelength lies in a critical region defined by the flexural rigidity of the lithosphere, stress differences within the lithosphere caused by the loading may exceed the elastic limit producing faulting and the development of horsts. The Boothia Uplift, the Early and Middle Paleozoic development of the Peace River Uplift and other structures in Canada are suggested to be examples of such a process. Article in Journal/Newspaper Peace River Canadian Science Publishing Canadian Journal of Earth Sciences 7 3 931 937 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
The tectonics involved in the structural development of uplifts in the stable platforms are suggested to be a natural consequence of loading the platform by sedimentary rocks. Any original compensated topography on the platform will cause differential loading with sediments thicker and the load greater in the valleys than over the hills. If the wavelength of topography is large, differential vertical movements can occur causing an amplification of the original topography and the growth of an arch. If the wavelength lies in a critical region defined by the flexural rigidity of the lithosphere, stress differences within the lithosphere caused by the loading may exceed the elastic limit producing faulting and the development of horsts. The Boothia Uplift, the Early and Middle Paleozoic development of the Peace River Uplift and other structures in Canada are suggested to be examples of such a process. |
format |
Article in Journal/Newspaper |
author |
Walcott, R. I. |
spellingShingle |
Walcott, R. I. An isostatic origin for basement uplifts |
author_facet |
Walcott, R. I. |
author_sort |
Walcott, R. I. |
title |
An isostatic origin for basement uplifts |
title_short |
An isostatic origin for basement uplifts |
title_full |
An isostatic origin for basement uplifts |
title_fullStr |
An isostatic origin for basement uplifts |
title_full_unstemmed |
An isostatic origin for basement uplifts |
title_sort |
isostatic origin for basement uplifts |
publisher |
Canadian Science Publishing |
publishDate |
1970 |
url |
http://dx.doi.org/10.1139/e70-088 http://www.nrcresearchpress.com/doi/pdf/10.1139/e70-088 |
genre |
Peace River |
genre_facet |
Peace River |
op_source |
Canadian Journal of Earth Sciences volume 7, issue 3, page 931-937 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e70-088 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
7 |
container_issue |
3 |
container_start_page |
931 |
op_container_end_page |
937 |
_version_ |
1810470593416396800 |