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TitleStuctural and stratigraphic controls on Zn-Pb-Ag mineralization at the Nanisivik Mississippi Valley-type deposit, northern Baffin Island, Nunavut
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AuthorPatterson, K M; Powis, K
SourceGeological Survey of Canada, Current Research (Online) no. 2002-C22, 2002, 12 pages, https://doi.org/10.4095/213198 (Open Access)
Image
Year2002
PublisherNatural Resources Canada
Documentserial
Lang.English
Mediapaper; on-line; digital
RelatedThis publication is contained in Geological Survey of Canada; (2002). Current Research 2002, winter release, Geological Survey of Canada, Current Research no. 2002
File formatpdf (Adobe Acrobat Reader)
ProvinceNunavut
NTS48C/02
AreaBaffin Island
Lat/Long WENS-86.0000 -85.0000 73.2500 73.0000
Subjectsstructural geology; stratigraphy; economic geology; zinc; lead; silver; mineral occurrences; Mississippi Valley deposits; mineralization; structural features; faults; sulphide deposits; shales; dolostones; conglomerates; mineral potential; Adams Sound Formation; Arctic Bay Formation; Society Cliffs Formation; Victor Bay Formation; Strathcona Sound Formation; Gallery Formation; Keystone Fault; rudstones; floatstones; Proterozoic; Precambrian
Illustrationssketch maps; photographs; schematic cross-sections
Released2002 02 15
AbstractThe Nanisivik Mississippi Valley-type Zn-Pb-Ag deposit is located on northern Baffin Island, Nunavut. Mesoproterozoic strata in the Nanisivik area consist of a basal siliciclastic succession (Adams Sound and Arctic Bay formations), platformal carbonate deposits (Society Cliffs and Victor Bay formations),and a molasse deposit (Strathcona Sound Formation). These strata are cut by east-trending normal faults interpreted as the conduits for mineralizing fluids that formed the Nanisivik massive sulphide deposits.Mineralization is localized within broad anticlines, proximal to normal faults, and is hosted by rocks of the upper and uppermost middle Society Cliffs Formation. Sulphide precipitation is interpreted to be primarily the result of reduction of ascending metalliferous fluids by previously trapped hydrocarbons. Exploration criteria for the selection of areas prospective for additional Nanisivik-style mineralization include stratigraphic, structural, and fluid-flow considerations.
GEOSCAN ID213198