On folds and thrusts affecting the Coppermine River Group, northwestern Canadian Shield
Examination of existing geological and aeromagnetic maps of the Coppermine homocline reveals two periods of deformation which affect rocks of the Coppermine River Group but predate rocks of the Rae Group. The oldest event generated easterly-trending folds and southerly-vergent thrust faults and is p...
Published in: | Canadian Journal of Earth Sciences |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1991
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/e91-046 http://www.nrcresearchpress.com/doi/pdf/10.1139/e91-046 |
id |
crcansciencepubl:10.1139/e91-046 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/e91-046 2024-05-19T07:39:07+00:00 On folds and thrusts affecting the Coppermine River Group, northwestern Canadian Shield Hildebrand, R. S. Baragar, W. R. A. 1991 http://dx.doi.org/10.1139/e91-046 http://www.nrcresearchpress.com/doi/pdf/10.1139/e91-046 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 28, issue 4, page 523-531 ISSN 0008-4077 1480-3313 journal-article 1991 crcansciencepubl https://doi.org/10.1139/e91-046 2024-04-25T06:52:02Z Examination of existing geological and aeromagnetic maps of the Coppermine homocline reveals two periods of deformation which affect rocks of the Coppermine River Group but predate rocks of the Rae Group. The oldest event generated easterly-trending folds and southerly-vergent thrust faults and is probably related to events along the northern margin of Laurentia. The younger event caused northerly-trending folds, possibly correlates with an east–west compressional event seen in the subsurface of the Interior Plains, and was likely a result of plate interactions along the western margin of Laurentia. Both deformational events that affect the Coppermine homocline are younger than 1267 Ma and are not correlative with the pre-1268 Ma Racklan orogeny of the northern Cordillera. Article in Journal/Newspaper Coppermine River Canadian Science Publishing Canadian Journal of Earth Sciences 28 4 523 531 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Examination of existing geological and aeromagnetic maps of the Coppermine homocline reveals two periods of deformation which affect rocks of the Coppermine River Group but predate rocks of the Rae Group. The oldest event generated easterly-trending folds and southerly-vergent thrust faults and is probably related to events along the northern margin of Laurentia. The younger event caused northerly-trending folds, possibly correlates with an east–west compressional event seen in the subsurface of the Interior Plains, and was likely a result of plate interactions along the western margin of Laurentia. Both deformational events that affect the Coppermine homocline are younger than 1267 Ma and are not correlative with the pre-1268 Ma Racklan orogeny of the northern Cordillera. |
format |
Article in Journal/Newspaper |
author |
Hildebrand, R. S. Baragar, W. R. A. |
spellingShingle |
Hildebrand, R. S. Baragar, W. R. A. On folds and thrusts affecting the Coppermine River Group, northwestern Canadian Shield |
author_facet |
Hildebrand, R. S. Baragar, W. R. A. |
author_sort |
Hildebrand, R. S. |
title |
On folds and thrusts affecting the Coppermine River Group, northwestern Canadian Shield |
title_short |
On folds and thrusts affecting the Coppermine River Group, northwestern Canadian Shield |
title_full |
On folds and thrusts affecting the Coppermine River Group, northwestern Canadian Shield |
title_fullStr |
On folds and thrusts affecting the Coppermine River Group, northwestern Canadian Shield |
title_full_unstemmed |
On folds and thrusts affecting the Coppermine River Group, northwestern Canadian Shield |
title_sort |
on folds and thrusts affecting the coppermine river group, northwestern canadian shield |
publisher |
Canadian Science Publishing |
publishDate |
1991 |
url |
http://dx.doi.org/10.1139/e91-046 http://www.nrcresearchpress.com/doi/pdf/10.1139/e91-046 |
genre |
Coppermine River |
genre_facet |
Coppermine River |
op_source |
Canadian Journal of Earth Sciences volume 28, issue 4, page 523-531 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e91-046 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
28 |
container_issue |
4 |
container_start_page |
523 |
op_container_end_page |
531 |
_version_ |
1799478640663068672 |