The genesis of the Gayna River carbonate-hosted Zn-Pb deposit
Degree: Master of Science Abstract: Geochemical analyses on samples from the Mississippi Valley Type Gayna River deposit, Northwest Territories, Canada, have resulted in the definition of three ore stages and a deposit genesis model. Pb/Pb and Re/Os isotopic analyses indicate that the mineralization...
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University of Alberta. Department of Earth and Atmospheric Sciences.
2009
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fttriple:oai:gotriple.eu:10670/1.jd0ru1 2023-05-15T17:46:39+02:00 The genesis of the Gayna River carbonate-hosted Zn-Pb deposit Wallace, Sara Rose Bronwen Gleeson, Sarah (Earth and Atmospheric Sciences) Duke, John (Pharmacy and Pharmaceutical Sciences) Richards, Jeremy (Earth and Atmospheric Sciences) 2009-05-26 http://hdl.handle.net/10048/408 en eng University of Alberta. Department of Earth and Atmospheric Sciences. 10670/1.jd0ru1 http://hdl.handle.net/10048/408 undefined ERA : Education and Research Archive geo envir Thesis https://vocabularies.coar-repositories.org/resource_types/c_46ec/ 2009 fttriple 2023-01-22T17:05:39Z Degree: Master of Science Abstract: Geochemical analyses on samples from the Mississippi Valley Type Gayna River deposit, Northwest Territories, Canada, have resulted in the definition of three ore stages and a deposit genesis model. Pb/Pb and Re/Os isotopic analyses indicate that the mineralization at Gayna River was emplaced during the Cretaceous - Tertiary. The sphalerites at Gayna River contain at least 21 trace elements including abnormally high Ga concentrations. Trace elements and 87Sr/86Sr ratios, ranging up to 0.7219 in the ore stage, indicate that underlying shales were the source of metals. The main stage of mineralization resulted from a hot saline brine probably derived from evaporated seawater. Stable isotopes suggest that thermochemical sulphate reduction (TSR) of local gypsum was the source of main and late stage sulphide. Fluids circulating through shale units, by tectonically driven flow, reacted with local gypsum causing TSR and resulting in the deposition of Pb and Zn sulphides at Gayna River. Thesis Northwest Territories Unknown Canada Gayna River ENVELOPE(-129.121,-129.121,65.417,65.417) Northwest Territories |
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geo envir Wallace, Sara Rose Bronwen The genesis of the Gayna River carbonate-hosted Zn-Pb deposit |
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Degree: Master of Science Abstract: Geochemical analyses on samples from the Mississippi Valley Type Gayna River deposit, Northwest Territories, Canada, have resulted in the definition of three ore stages and a deposit genesis model. Pb/Pb and Re/Os isotopic analyses indicate that the mineralization at Gayna River was emplaced during the Cretaceous - Tertiary. The sphalerites at Gayna River contain at least 21 trace elements including abnormally high Ga concentrations. Trace elements and 87Sr/86Sr ratios, ranging up to 0.7219 in the ore stage, indicate that underlying shales were the source of metals. The main stage of mineralization resulted from a hot saline brine probably derived from evaporated seawater. Stable isotopes suggest that thermochemical sulphate reduction (TSR) of local gypsum was the source of main and late stage sulphide. Fluids circulating through shale units, by tectonically driven flow, reacted with local gypsum causing TSR and resulting in the deposition of Pb and Zn sulphides at Gayna River. |
author2 |
Gleeson, Sarah (Earth and Atmospheric Sciences) Duke, John (Pharmacy and Pharmaceutical Sciences) Richards, Jeremy (Earth and Atmospheric Sciences) |
format |
Thesis |
author |
Wallace, Sara Rose Bronwen |
author_facet |
Wallace, Sara Rose Bronwen |
author_sort |
Wallace, Sara Rose Bronwen |
title |
The genesis of the Gayna River carbonate-hosted Zn-Pb deposit |
title_short |
The genesis of the Gayna River carbonate-hosted Zn-Pb deposit |
title_full |
The genesis of the Gayna River carbonate-hosted Zn-Pb deposit |
title_fullStr |
The genesis of the Gayna River carbonate-hosted Zn-Pb deposit |
title_full_unstemmed |
The genesis of the Gayna River carbonate-hosted Zn-Pb deposit |
title_sort |
genesis of the gayna river carbonate-hosted zn-pb deposit |
publisher |
University of Alberta. Department of Earth and Atmospheric Sciences. |
publishDate |
2009 |
url |
http://hdl.handle.net/10048/408 |
long_lat |
ENVELOPE(-129.121,-129.121,65.417,65.417) |
geographic |
Canada Gayna River Northwest Territories |
geographic_facet |
Canada Gayna River Northwest Territories |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_source |
ERA : Education and Research Archive |
op_relation |
10670/1.jd0ru1 http://hdl.handle.net/10048/408 |
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1766150437760663552 |