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TitleDistribution of Presqu'ile dolomite in the Great Slave Plain, Northwest Territories
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AuthorJanicki, E P
SourcePotential for carbonate-hosted lead-zinc Mississippi Valley-type mineralization in northern Alberta and southern Northwest Territories: geoscience contributions, Targeted Geoscience Initiative; by Hannigan, P K (ed.); Geological Survey of Canada, Bulletin no. 591, 2006 p. 179-194, https://doi.org/10.4095/222935 (Open Access)
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Year2006
PublisherNatural Resources Canada
Documentserial
Lang.English
Mediapaper; CD-ROM; on-line; digital
RelatedThis publication is contained in Hannigan, P K; (2006). Potential for carbonate-hosted lead-zinc Mississippi Valley-type mineralization in northern Alberta and southern Northwest Territories: geoscience contributions, Targeted Geoscience Initiative, Geological Survey of Canada, Bulletin no. 591
RelatedThis publication is contained in Hannigan, P K; (2006). Potential for carbonate-hosted lead-zinc Mississippi Valley-type mineralization in northern Alberta and southern Northwest Territories: geoscience contributions, Targeted Geoscience Initiative, Geological Survey of Canada, Bulletin no. 591
File formatpdf (Adobe® Reader® v. 6.0, is included / est fourni); pdf
ProvinceNorthwest Territories
NTS85B; 85C; 85D; 85E; 85F; 85G
Areasouthwestern Northwest Territories; Great Slave Lake; Hay River; Buffalo Lake; Mackenzie River; Mills Lake; Kakisa Lake; Tathlina Lake; Cameron Hills; Fort Providence; Pine Point; Enterprise; Sulphur Bay; Windy Point; Slave Point
Lat/Long WENS-120.0000 -114.0000 62.0000 60.0000
Subjectsstructural geology; sedimentology; Middle Devonian; Givetian; sedimentary rocks; carbonate rocks; dolomites; mineral deposits; mineral distribution; mineral potential; mineral exploration; petroleum exploration; hydrocarbon potential; Mississippi Valley deposits; lead zinc deposits; sedimentary ore deposits; hydrothermal deposits; lead; zinc; dolostones; fluid inclusions; tectonic setting; core samples; gas wells; oil wells; wireline logs; structural analyses; structural trends; sedimentary petrology; mineralization; porosity; permeability; drillholes; Presqu'ile Dolomite; Interior Plain; Great Slave Plain; Horn River Basin; Elk Point Basin; Presqu'ile Barrier; Tathlina Arch; Tathlina Fault Zone; Hay River Fault Zone; McDonald Fault; Great Slave Shear Zone; Pine Point Lead Zinc Deposit; Hay River Formation; Waterways Formation; Horn River Group; Slave Point Formation; Sulphur Point Formation; Chinchaga Formation; white sparry dolomite; trends analyses; vertical distribution; horizontal distribution; carbonate-hosted deposits; well data; drill cuttings; Phanerozoic; Paleozoic; Devonian
Illustrationssketch maps; stratigraphic charts; photographs; cross-sections; profiles; tables; well logs
ProgramTargeted Geoscience Initiative (TGI-1), 2000-2003
Released2006 12 21
AbstractThis study was initiated to map out the extent and gross thickness of Presqu'ile dolomite in the Great Slave Plain of the Northwest Territories. Presqu'ile dolomite refers to a diagenetic replacive dolostone, often containing void- and fracture-filling white, coarse-crystalline sparry hydrothermal or saddle dolomite commonly associated with the Pine Point lead-zinc deposits. The lead-zinc mineralization process is still a matter of some debate; the distribution of Presqu'ile dolomite could yield some clues. It could also be useful for oil and gas exploration because of the high permeability of this dolomite.
A prominent northeast-southwest trend of thick Presqu'ile dolomite appears to be centered between the inferred Tathlina and Hay River fault zones. Presqu'ile dolomite appears to be most abundant close to surface; it does not occur below depths of 850 m. No Presqu'ile dolomite was found below the Cretaceous cover in the study area.
GEOSCAN ID222935