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TitleSynthesis of Mississippi Valley-type lead-zinc deposit potential in northern Alberta and southern Northwest Territories
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AuthorHannigan, P K
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. 305-347, https://doi.org/10.4095/222945 (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; Alberta
NTS74D/09; 74D/10; 74D/11; 74D/12; 74D/13; 74D/14; 74D/15; 74D/16; 74E; 74L; 74M; 75D; 75E; 84A/09; 84A/10; 84A/11; 84A/12; 84A/13; 84A/14; 84A/15; 84A/16; 84B/09; 84B/10; 84B/11; 84B/12; 84B/13; 84B/14; 84B/15; 84B/16; 84C/09; 84C/10; 84C/11; 84C/12; 84C/13; 84C/14; 84C/15; 84C/16; 84D/09; 84D/10; 84D/11; 84D/12; 84D/13; 84D/14; 84D/15; 84D/16; 84E; 84F; 84G; 84I; 84J; 84K; 84L; 84M; 84N; 84O; 84P; 85A; 85B; 85C; 85D; 85E; 85F; 85G; 85H
Areanorthern Alberta; south-central Northwest Territories; Peace River; Athasbasca River; Slave River; Great Slave Lake; Mackenzie River; Clearwater River; Lake Athabasca; Lake Claire; Pine Point; Hay River; High Level; Fort Chipewyan; Fort McMurray; High Point; Sulphur Point; Presqu'ile Point; Dawson Landing; Paulette Island; Buffalo River; Polar Lake; Fort Smith; Wood Buffalo National Park; Cameron Hills
Lat/Long WENS-120.0000 -110.0000 62.0000 56.5000
Subjectseconomic geology; sedimentology; geochemistry; hydrogeology; mineralogy; mineral deposits; mineral potential; mineral exploration; Mississippi Valley deposits; lead zinc deposits; lead; zinc; sedimentary ore deposits; sedimentary petrology; sedimentary basins; sedimentary rocks; carbonate rocks; dolomites; dolostones; limestones; paleohydrology; hydrodynamics; formation fluids; fluid flow; fluid inclusions; flow trajectories; mineralization; dolomitization; recrystallization; diagenesis; precipitation; geochemical analyses; sea water geochemistry; isotopic studies; stable isotope studies; oxygen isotopes; radioisotopes; strontium strontium ratios; petrography; sphalerite; geological history; deposition; burial history; brine; magnesium; thermal analyses; thermal history; temperature; thermal regimes; convection; basement geology; tectonic setting; epeirogenesis; brecciation; hydrothermal deposits; structural analyses; structural controls; stratigraphic analyses; ore grades; sulphides; brecciation; salt solution; paragenesis; source rocks; models; exploration guidelines; exploration methods; prospecting techniques; Interior Plain; Western Canada Sedimentary Basin; Great Slave Shear Zone; McDonald Faults; Hay River Fault; Tathlina Fault Zone; Rabbit Lake Fault Zone; Presqu'ile Barrier; Tathlina Arch; Peace River Arch; Steen River Impact Structure; Pine Point property; Presqu'il Dolomite; Slave Point Formation; Watt Mountain Formation; Sulphur Point Formation; Upper Keg River Member; carbonate-hosted deposits; isotopic signatures; saddle dolomites; paleokarsts; distribution; Phanerozoic; Mesozoic; Cretaceous; Paleozoic; Devonian; Precambrian; Proterozoic
Illustrationssketch maps; plots; tables; photographs; charts; cross-plots; histograms; models; schematic cross-sections
ProgramTargeted Geoscience Initiative (TGI-1), 2000-2003
Released2006 12 21
AbstractThis paper discusses and integrates results of a research project investigating the resource potential of Mississippi Valley-type lead-zinc mineralization in northern Alberta and southern Northwest Territories. The source, flow path, and timing of fluid movement, and the relation of these fluids to mineralization are examined.
Pre-ore isotopic signatures and fluid inclusion analyses of samples collected in Pine Point district affirm an early episode of dolomitization associated with precipitation from seawater at very shallow depths. Ore-stage carbonate deposits display numerous petrographic and diagenetic features indicating a deeper subsurface or burial environment. Saddle dolomites and sphalerites at Pine Point display fluid inclusion-filling temperatures exceeding levels solely related to maximum burial depths of host strata beneath Paleozoic cover. Continuous recycling of magnesium-rich connate brine by thermal convection fluid flow provides a feasible mechanism for extensive and regional development of hydrothermal dolomite and paleokarst in porous limestone overlying dense dolostone.
GEOSCAN ID222945