Stratigraphy and structure of Pleistocene collapse in the Regina Low, Saskatchewan, Canada
The Regina Low is a collapse structure, formed as a result of dissolution of salt from the Middle Devonian Prairie Evaporite Formation. In this study, collapse has affected the Upper Cretaceous Pierre Shale and the Ardkenneth and Snakebite members of the Bearpaw Formation of the Montana Group; the M...
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Online Access: | http://dx.doi.org/10.1139/e02-038 http://www.nrcresearchpress.com/doi/pdf/10.1139/e02-038 |
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crcansciencepubl:10.1139/e02-038 2024-09-15T18:08:01+00:00 Stratigraphy and structure of Pleistocene collapse in the Regina Low, Saskatchewan, Canada Christiansen, E A Sauer, E Karl 2002 http://dx.doi.org/10.1139/e02-038 http://www.nrcresearchpress.com/doi/pdf/10.1139/e02-038 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 39, issue 9, page 1411-1423 ISSN 0008-4077 1480-3313 journal-article 2002 crcansciencepubl https://doi.org/10.1139/e02-038 2024-07-25T04:10:07Z The Regina Low is a collapse structure, formed as a result of dissolution of salt from the Middle Devonian Prairie Evaporite Formation. In this study, collapse has affected the Upper Cretaceous Pierre Shale and the Ardkenneth and Snakebite members of the Bearpaw Formation of the Montana Group; the Mennon, Dundurn, and Warman formations of the Sutherland Group; and the Floral and Battleford formations of the Saskatoon Group. A structural closure of 125175 m approximates the thickness of the Middle Devonian Prairie Evaporite Formation. In the Early Pleistocene, about 54 m of collapse took place in eastern Regina accounting for the preservation of Snakebite Member. Major collapses of about 58 and 86 m took place in northern Regina during deposition of Middle Pleistocene, pre-Illinoian Dundurn Formation. The final major collapse of about 127 m took place in northeastern Regina between deposition of the lower and upper tills of the Floral Formation. Eighty-seven metres of this collapse took place during deposition of the Late Pleistocene, interglacial, Sangamon Pasqua Member of the Floral Formation. The Pleistocene fill in the Regina Low collapse structure suggests that collapse took place when dissolution of salt from the Prairie Evaporite Formation was accelerated by high hydraulic gradients created by the surcharge pressures of the glaciers. Article in Journal/Newspaper glacier* Canadian Science Publishing Canadian Journal of Earth Sciences 39 9 1411 1423 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
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English |
description |
The Regina Low is a collapse structure, formed as a result of dissolution of salt from the Middle Devonian Prairie Evaporite Formation. In this study, collapse has affected the Upper Cretaceous Pierre Shale and the Ardkenneth and Snakebite members of the Bearpaw Formation of the Montana Group; the Mennon, Dundurn, and Warman formations of the Sutherland Group; and the Floral and Battleford formations of the Saskatoon Group. A structural closure of 125175 m approximates the thickness of the Middle Devonian Prairie Evaporite Formation. In the Early Pleistocene, about 54 m of collapse took place in eastern Regina accounting for the preservation of Snakebite Member. Major collapses of about 58 and 86 m took place in northern Regina during deposition of Middle Pleistocene, pre-Illinoian Dundurn Formation. The final major collapse of about 127 m took place in northeastern Regina between deposition of the lower and upper tills of the Floral Formation. Eighty-seven metres of this collapse took place during deposition of the Late Pleistocene, interglacial, Sangamon Pasqua Member of the Floral Formation. The Pleistocene fill in the Regina Low collapse structure suggests that collapse took place when dissolution of salt from the Prairie Evaporite Formation was accelerated by high hydraulic gradients created by the surcharge pressures of the glaciers. |
format |
Article in Journal/Newspaper |
author |
Christiansen, E A Sauer, E Karl |
spellingShingle |
Christiansen, E A Sauer, E Karl Stratigraphy and structure of Pleistocene collapse in the Regina Low, Saskatchewan, Canada |
author_facet |
Christiansen, E A Sauer, E Karl |
author_sort |
Christiansen, E A |
title |
Stratigraphy and structure of Pleistocene collapse in the Regina Low, Saskatchewan, Canada |
title_short |
Stratigraphy and structure of Pleistocene collapse in the Regina Low, Saskatchewan, Canada |
title_full |
Stratigraphy and structure of Pleistocene collapse in the Regina Low, Saskatchewan, Canada |
title_fullStr |
Stratigraphy and structure of Pleistocene collapse in the Regina Low, Saskatchewan, Canada |
title_full_unstemmed |
Stratigraphy and structure of Pleistocene collapse in the Regina Low, Saskatchewan, Canada |
title_sort |
stratigraphy and structure of pleistocene collapse in the regina low, saskatchewan, canada |
publisher |
Canadian Science Publishing |
publishDate |
2002 |
url |
http://dx.doi.org/10.1139/e02-038 http://www.nrcresearchpress.com/doi/pdf/10.1139/e02-038 |
genre |
glacier* |
genre_facet |
glacier* |
op_source |
Canadian Journal of Earth Sciences volume 39, issue 9, page 1411-1423 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e02-038 |
container_title |
Canadian Journal of Earth Sciences |
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39 |
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9 |
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1411 |
op_container_end_page |
1423 |
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1810445361906450432 |