Geochemical signature and seismic stratigraphic setting of Coppermine basalts drilled beneath the Anderson Plains in northwest Canada
Basalts drilled in the Petro-Canada – Canterra Tweed Lake M-47 well in the Anderson Plains of northwestern Canada have geochemical characteristics, including of major, trace, and rare earth elements, that are similar to those of the most enriched Coppermine lavas but significantly different from tho...
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1991
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crcansciencepubl:10.1139/e91-018 2023-12-17T10:33:15+01:00 Geochemical signature and seismic stratigraphic setting of Coppermine basalts drilled beneath the Anderson Plains in northwest Canada Sevigny, James H. Cook, Frederick A. Clark, Elizabeth A. 1991 http://dx.doi.org/10.1139/e91-018 http://www.nrcresearchpress.com/doi/pdf/10.1139/e91-018 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 28, issue 2, page 184-194 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1991 crcansciencepubl https://doi.org/10.1139/e91-018 2023-11-19T13:38:26Z Basalts drilled in the Petro-Canada – Canterra Tweed Lake M-47 well in the Anderson Plains of northwestern Canada have geochemical characteristics, including of major, trace, and rare earth elements, that are similar to those of the most enriched Coppermine lavas but significantly different from those of the younger Proterozoic volcanics, such as the Natkusiak basalts. This result provides a geological tie and timing constraint for structures observed on seismic reflection data in this area. Correlation of stratigraphic data from the well to seismic data shows that the lavas are within a sequence of layered reflections that onlap, and are thus younger than, easterly verging structures, and that were themselves probably uplifted prior to deposition of the Mackenzie Mountains Supergroup. These relationships thus show that at least two stages of Proterozoic compressional deformation, one that predated and one that postdated the basalts, produced structures beneath the Anderson Plains. Article in Journal/Newspaper Mackenzie mountains Canadian Science Publishing (via Crossref) Canada Tweed Lake ENVELOPE(-125.885,-125.885,66.783,66.783) Canadian Journal of Earth Sciences 28 2 184 194 |
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 Sevigny, James H. Cook, Frederick A. Clark, Elizabeth A. Geochemical signature and seismic stratigraphic setting of Coppermine basalts drilled beneath the Anderson Plains in northwest Canada |
topic_facet |
General Earth and Planetary Sciences |
description |
Basalts drilled in the Petro-Canada – Canterra Tweed Lake M-47 well in the Anderson Plains of northwestern Canada have geochemical characteristics, including of major, trace, and rare earth elements, that are similar to those of the most enriched Coppermine lavas but significantly different from those of the younger Proterozoic volcanics, such as the Natkusiak basalts. This result provides a geological tie and timing constraint for structures observed on seismic reflection data in this area. Correlation of stratigraphic data from the well to seismic data shows that the lavas are within a sequence of layered reflections that onlap, and are thus younger than, easterly verging structures, and that were themselves probably uplifted prior to deposition of the Mackenzie Mountains Supergroup. These relationships thus show that at least two stages of Proterozoic compressional deformation, one that predated and one that postdated the basalts, produced structures beneath the Anderson Plains. |
format |
Article in Journal/Newspaper |
author |
Sevigny, James H. Cook, Frederick A. Clark, Elizabeth A. |
author_facet |
Sevigny, James H. Cook, Frederick A. Clark, Elizabeth A. |
author_sort |
Sevigny, James H. |
title |
Geochemical signature and seismic stratigraphic setting of Coppermine basalts drilled beneath the Anderson Plains in northwest Canada |
title_short |
Geochemical signature and seismic stratigraphic setting of Coppermine basalts drilled beneath the Anderson Plains in northwest Canada |
title_full |
Geochemical signature and seismic stratigraphic setting of Coppermine basalts drilled beneath the Anderson Plains in northwest Canada |
title_fullStr |
Geochemical signature and seismic stratigraphic setting of Coppermine basalts drilled beneath the Anderson Plains in northwest Canada |
title_full_unstemmed |
Geochemical signature and seismic stratigraphic setting of Coppermine basalts drilled beneath the Anderson Plains in northwest Canada |
title_sort |
geochemical signature and seismic stratigraphic setting of coppermine basalts drilled beneath the anderson plains in northwest canada |
publisher |
Canadian Science Publishing |
publishDate |
1991 |
url |
http://dx.doi.org/10.1139/e91-018 http://www.nrcresearchpress.com/doi/pdf/10.1139/e91-018 |
long_lat |
ENVELOPE(-125.885,-125.885,66.783,66.783) |
geographic |
Canada Tweed Lake |
geographic_facet |
Canada Tweed Lake |
genre |
Mackenzie mountains |
genre_facet |
Mackenzie mountains |
op_source |
Canadian Journal of Earth Sciences volume 28, issue 2, page 184-194 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e91-018 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
28 |
container_issue |
2 |
container_start_page |
184 |
op_container_end_page |
194 |
_version_ |
1785587180732678144 |