High horizontal stresses in Hudson Bay, Canada
Breakouts in four wells in Hudson Bay suggest that the Paleozoic section is currently subject to maximum horizontal compression about a northeast–southwest axis, with some local deflection in horizontal stress orientations related to faults. The Paleozoic section does not appear to be detached from...
Published in: | Canadian Journal of Earth Sciences |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1997
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/e17-079 http://www.nrcresearchpress.com/doi/pdf/10.1139/e17-079 |
id |
crcansciencepubl:10.1139/e17-079 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/e17-079 2023-12-17T10:31:22+01:00 High horizontal stresses in Hudson Bay, Canada Bell, J. S. Wu, P. 1997 http://dx.doi.org/10.1139/e17-079 http://www.nrcresearchpress.com/doi/pdf/10.1139/e17-079 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 34, issue 7, page 949-957 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1997 crcansciencepubl https://doi.org/10.1139/e17-079 2023-11-19T13:39:18Z Breakouts in four wells in Hudson Bay suggest that the Paleozoic section is currently subject to maximum horizontal compression about a northeast–southwest axis, with some local deflection in horizontal stress orientations related to faults. The Paleozoic section does not appear to be detached from the crystalline basement of the Canadian Shield, despite the presence of thick Silurian halite-rich intervals. The northeast–southwest compressional axis documented in the Hudson Bay Basin is compatible with stress orientations mat have been measured in other parts of cratonic North America. Leak-off tests from three wells imply that contemporary horizontal stress magnitudes above 1500 m depth exceed present-day overburden loads; comparable relative magnitudes have been measured elsewhere in central Canada. Finite-element modelling suggests mat this phenomenon is due to the effects of glacial loading, crustal rebound, and spreading of the Mid-Atlantic Ridge. Article in Journal/Newspaper Hudson Bay Canadian Science Publishing (via Crossref) Hudson Bay Canada Hudson Mid-Atlantic Ridge Canadian Journal of Earth Sciences 34 7 949 957 |
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 Bell, J. S. Wu, P. High horizontal stresses in Hudson Bay, Canada |
topic_facet |
General Earth and Planetary Sciences |
description |
Breakouts in four wells in Hudson Bay suggest that the Paleozoic section is currently subject to maximum horizontal compression about a northeast–southwest axis, with some local deflection in horizontal stress orientations related to faults. The Paleozoic section does not appear to be detached from the crystalline basement of the Canadian Shield, despite the presence of thick Silurian halite-rich intervals. The northeast–southwest compressional axis documented in the Hudson Bay Basin is compatible with stress orientations mat have been measured in other parts of cratonic North America. Leak-off tests from three wells imply that contemporary horizontal stress magnitudes above 1500 m depth exceed present-day overburden loads; comparable relative magnitudes have been measured elsewhere in central Canada. Finite-element modelling suggests mat this phenomenon is due to the effects of glacial loading, crustal rebound, and spreading of the Mid-Atlantic Ridge. |
format |
Article in Journal/Newspaper |
author |
Bell, J. S. Wu, P. |
author_facet |
Bell, J. S. Wu, P. |
author_sort |
Bell, J. S. |
title |
High horizontal stresses in Hudson Bay, Canada |
title_short |
High horizontal stresses in Hudson Bay, Canada |
title_full |
High horizontal stresses in Hudson Bay, Canada |
title_fullStr |
High horizontal stresses in Hudson Bay, Canada |
title_full_unstemmed |
High horizontal stresses in Hudson Bay, Canada |
title_sort |
high horizontal stresses in hudson bay, canada |
publisher |
Canadian Science Publishing |
publishDate |
1997 |
url |
http://dx.doi.org/10.1139/e17-079 http://www.nrcresearchpress.com/doi/pdf/10.1139/e17-079 |
geographic |
Hudson Bay Canada Hudson Mid-Atlantic Ridge |
geographic_facet |
Hudson Bay Canada Hudson Mid-Atlantic Ridge |
genre |
Hudson Bay |
genre_facet |
Hudson Bay |
op_source |
Canadian Journal of Earth Sciences volume 34, issue 7, page 949-957 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e17-079 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
34 |
container_issue |
7 |
container_start_page |
949 |
op_container_end_page |
957 |
_version_ |
1785584656966483968 |