Magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, Echo Bay, Northwest Territories.
Magnetite-apatite-actinolite deposits occur as pervasive replacement, veins, pods and breccias within wall rocks to the plutons of the Mystery Island intrusive suite at Echo Bay, Northwest Territories. The plutons and their altered wall rocks host previously-mined pitchblende, native Ag, Ni-Co arsen...
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Université d'Ottawa / University of Ottawa
1992
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ftdatacite:10.20381/ruor-6837 2023-05-15T16:04:01+02:00 Magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, Echo Bay, Northwest Territories. Reardon, Nancy Catherine. 1992 https://dx.doi.org/10.20381/ruor-6837 http://www.ruor.uottawa.ca/handle/10393/7543 unknown Université d'Ottawa / University of Ottawa Geodesy. Text Thesis article-journal ScholarlyArticle 1992 ftdatacite https://doi.org/10.20381/ruor-6837 2021-11-05T12:55:41Z Magnetite-apatite-actinolite deposits occur as pervasive replacement, veins, pods and breccias within wall rocks to the plutons of the Mystery Island intrusive suite at Echo Bay, Northwest Territories. The plutons and their altered wall rocks host previously-mined pitchblende, native Ag, Ni-Co arsenide veins. Although numerous studies were carried out on the pitchblende, native Ag, Ni-Co arsenide veins, the origin of the altered rocks which host them remains uncertain. Overall, this study reveals that the formation of magnetite-apatite-actinolite veins, pervasive replacement of rocks by albite and magnetite-apatite-actinolite, and hydrothermal brecciation by magmatic fluids is consistent with geologic and isotopic data. Thus, it is inferred that these deposits formed by replacement in a hydrothermal system dominated by magmatic fluids exsolved by cooling epizonal plutons of the Mystery Island intrusive suite. (Abstract shortened by UMI.) Thesis Echo Bay Northwest Territories DataCite Metadata Store (German National Library of Science and Technology) Echo Bay ENVELOPE(-117.887,-117.887,66.034,66.034) Mystery Island ENVELOPE(-118.037,-118.037,66.051,66.051) Northwest Territories Wall Rocks ENVELOPE(-129.312,-129.312,52.728,52.728) |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Geodesy. |
spellingShingle |
Geodesy. Reardon, Nancy Catherine. Magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, Echo Bay, Northwest Territories. |
topic_facet |
Geodesy. |
description |
Magnetite-apatite-actinolite deposits occur as pervasive replacement, veins, pods and breccias within wall rocks to the plutons of the Mystery Island intrusive suite at Echo Bay, Northwest Territories. The plutons and their altered wall rocks host previously-mined pitchblende, native Ag, Ni-Co arsenide veins. Although numerous studies were carried out on the pitchblende, native Ag, Ni-Co arsenide veins, the origin of the altered rocks which host them remains uncertain. Overall, this study reveals that the formation of magnetite-apatite-actinolite veins, pervasive replacement of rocks by albite and magnetite-apatite-actinolite, and hydrothermal brecciation by magmatic fluids is consistent with geologic and isotopic data. Thus, it is inferred that these deposits formed by replacement in a hydrothermal system dominated by magmatic fluids exsolved by cooling epizonal plutons of the Mystery Island intrusive suite. (Abstract shortened by UMI.) |
format |
Thesis |
author |
Reardon, Nancy Catherine. |
author_facet |
Reardon, Nancy Catherine. |
author_sort |
Reardon, Nancy Catherine. |
title |
Magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, Echo Bay, Northwest Territories. |
title_short |
Magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, Echo Bay, Northwest Territories. |
title_full |
Magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, Echo Bay, Northwest Territories. |
title_fullStr |
Magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, Echo Bay, Northwest Territories. |
title_full_unstemmed |
Magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, Echo Bay, Northwest Territories. |
title_sort |
magmatic-hydrothermal systems and associated magnetite-apatite-actinolite deposits, echo bay, northwest territories. |
publisher |
Université d'Ottawa / University of Ottawa |
publishDate |
1992 |
url |
https://dx.doi.org/10.20381/ruor-6837 http://www.ruor.uottawa.ca/handle/10393/7543 |
long_lat |
ENVELOPE(-117.887,-117.887,66.034,66.034) ENVELOPE(-118.037,-118.037,66.051,66.051) ENVELOPE(-129.312,-129.312,52.728,52.728) |
geographic |
Echo Bay Mystery Island Northwest Territories Wall Rocks |
geographic_facet |
Echo Bay Mystery Island Northwest Territories Wall Rocks |
genre |
Echo Bay Northwest Territories |
genre_facet |
Echo Bay Northwest Territories |
op_doi |
https://doi.org/10.20381/ruor-6837 |
_version_ |
1766399720879554560 |