The Dirt Hills structure: an ice-thrust feature in southern Saskatchewan, Canada
The Dirt Hills structure is expressed at the surface as a broad, arcuate moraine, 7.5 km wide, 120 m high, and 40 km long. The structure is composed mainly of bedrock and drift consisting of three slabs stacked to form a single block 215 m thick. The shear zones that bound the slabs are mainly in cl...
Published in: | Canadian Journal of Earth Sciences |
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Language: | English |
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Canadian Science Publishing
1997
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Online Access: | http://dx.doi.org/10.1139/e17-007 http://www.nrcresearchpress.com/doi/pdf/10.1139/e17-007 |
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crcansciencepubl:10.1139/e17-007 2024-03-03T08:44:40+00:00 The Dirt Hills structure: an ice-thrust feature in southern Saskatchewan, Canada Christiansen, E. A. Sauer, E. Karl 1997 http://dx.doi.org/10.1139/e17-007 http://www.nrcresearchpress.com/doi/pdf/10.1139/e17-007 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 34, issue 1, page 76-85 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1997 crcansciencepubl https://doi.org/10.1139/e17-007 2024-02-07T10:53:41Z The Dirt Hills structure is expressed at the surface as a broad, arcuate moraine, 7.5 km wide, 120 m high, and 40 km long. The structure is composed mainly of bedrock and drift consisting of three slabs stacked to form a single block 215 m thick. The shear zones that bound the slabs are mainly in clays of the Bearpaw Formation. The Dirt Hills structure originated during the last deglaciation when the glacier, under compressive flow, readvanced up the Missouri Coteau escarpment and stacked the subglacial slabs of bedrock and drift. The subparallel, arcuate ice-thrust ridges are formed presumably by imbricate thrust faults originating from the uppermost shear zone. Article in Journal/Newspaper glacier* Canadian Science Publishing Canada Canadian Journal of Earth Sciences 34 1 76 85 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Christiansen, E. A. Sauer, E. Karl The Dirt Hills structure: an ice-thrust feature in southern Saskatchewan, Canada |
topic_facet |
General Earth and Planetary Sciences |
description |
The Dirt Hills structure is expressed at the surface as a broad, arcuate moraine, 7.5 km wide, 120 m high, and 40 km long. The structure is composed mainly of bedrock and drift consisting of three slabs stacked to form a single block 215 m thick. The shear zones that bound the slabs are mainly in clays of the Bearpaw Formation. The Dirt Hills structure originated during the last deglaciation when the glacier, under compressive flow, readvanced up the Missouri Coteau escarpment and stacked the subglacial slabs of bedrock and drift. The subparallel, arcuate ice-thrust ridges are formed presumably by imbricate thrust faults originating from the uppermost shear zone. |
format |
Article in Journal/Newspaper |
author |
Christiansen, E. A. Sauer, E. Karl |
author_facet |
Christiansen, E. A. Sauer, E. Karl |
author_sort |
Christiansen, E. A. |
title |
The Dirt Hills structure: an ice-thrust feature in southern Saskatchewan, Canada |
title_short |
The Dirt Hills structure: an ice-thrust feature in southern Saskatchewan, Canada |
title_full |
The Dirt Hills structure: an ice-thrust feature in southern Saskatchewan, Canada |
title_fullStr |
The Dirt Hills structure: an ice-thrust feature in southern Saskatchewan, Canada |
title_full_unstemmed |
The Dirt Hills structure: an ice-thrust feature in southern Saskatchewan, Canada |
title_sort |
dirt hills structure: an ice-thrust feature in southern saskatchewan, canada |
publisher |
Canadian Science Publishing |
publishDate |
1997 |
url |
http://dx.doi.org/10.1139/e17-007 http://www.nrcresearchpress.com/doi/pdf/10.1139/e17-007 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
glacier* |
genre_facet |
glacier* |
op_source |
Canadian Journal of Earth Sciences volume 34, issue 1, page 76-85 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e17-007 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
34 |
container_issue |
1 |
container_start_page |
76 |
op_container_end_page |
85 |
_version_ |
1792500158493097984 |