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TitlePreliminary investigation of significant mineral occurrences in the central Rankin-Ennadai supracrustal belt, Kaminak Lake area, Northwest Territories (Nunavut)
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AuthorGoff, S P; Kerswill, J A
SourceCanadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1999-C, 1999 p. 147-156, https://doi.org/10.4095/210180 (Open Access)
Year1999
PublisherNatural Resources Canada
Documentserial
Lang.English
Mediapaper; on-line; digital
RelatedThis publication is contained in Geological Survey of Canada; (1999). Canadian Shield, Geological Survey of Canada, Current Research no. 1999-C
File formatpdf
ProvinceNunavut
NTS55E/13; 55E/14; 55E/15; 55E/16; 55L/01; 55L/02; 55L/03; 55L/04; 55L/05; 55l/06; 55L/07; 55L/08; 55L/09; 55L/10; 55L/11; 55L/12; 65H/15; 65H/16; 65I/01; 65I/02
AreaTurquetil Lake; Kaminak Lake; Carr Lake; Heninga Lake; Kaminuriak Lake
Lat/Long WENS -97.0000 -94.0000 62.7500 61.7500
Subjectsmetallic minerals; igneous and metamorphic petrology; mineral occurrences; gold; vein deposits; mineral deposits; lithology; schists; metamorphic rocks; base metal deposits; polymetallic ores; uranium; molybdenum; metallogeny; deformation; lithogeochemistry; exploration guidelines; silver; copper; lead; zinc; Ennadai-Rankin greenstone belt; Churchill Province; Hurwitz Group; Proterozoic
Illustrationsphotographs; sketch maps; analyses
ProgramWestern Churchill NATMAP Project
Released1999 02 01
AbstractThe central portion of the Rankin-Ennadai supracrustal belt contains a large number of mineral occurrences, including several major vein gold, polymetallic vein, and volcanic-associated massive sulphide deposits.
Work to date indicates that most significant gold occurrences contain complex multistage, carbonate-bearing vein systems in which at least some gold-rich veins clearly predate regional deformation and metamorphism. Deformed, pyritic, quartz-sericite schists of similar character to alteration zones in massive sulphide deposits are present in some gold occurrences.
Polymetallic vein occurrences contain high Au, Ag, Cu, and Zn, high Ag/Au ratios, locally anomalous Bi, Se, Te, As, and Mo, and pyritic quartz-sericite schist. Both the veins and schistose alteration zones are deformed and metamorphosed
The critical features of polymetallic vein and some vein gold occurrences are similar to those of many porphyry and/or epithermal deposits and suggest a major contribution to metal concentration by synvolcanic processes.
GEOSCAN ID210180