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TitlePreliminary observations on the geological environment of the Paleoproterozoic auriferous volcanogenic massive sulphide deposit at Lalor, Snow Lake, Manitoba
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AuthorCaté, A; Mercier-Langevin, P; Ross, P -S; Duff, S; Hannington, M; Dubé, B; Gagné, S
SourceGeological Survey of Canada, Open File 7372, 2013, 13 pages, https://doi.org/10.4095/292516 (Open Access)
Image
Year2013
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
File formatpdf
ProvinceManitoba
NTS63K/16
AreaSnow Lake; Lalor
Lat/Long WENS-102.0000 -98.0000 56.0000 54.0000
Subjectsigneous and metamorphic petrology; geochemistry; mineral deposits; mineral assemblages; mineralization; gold; volcanogenic deposits; sulphides; deformation; metamorphism; alteration; hydrothermal alteration; volcanic rocks; igneous rocks; paragenesis; geochemical interpretations; Linda Deposit; Flin Flon Greenstone Belt; Precambrian; Proterozoic
Illustrationslocation maps; plots; photographs; tables
ProgramVolcanogenic Massive Sulfide Ore Systems, Targeted Geoscience Initiative (TGI-4)
Released2013 04 25
Summary(Plain Language Summary, not published)
The Lalor deposit located in northern Manitoba represents an imporatnte resource of base metals (Cu, Zn and Pb) but also of precious metals (gold and silver). The significant amount of gold contained in this deposit is unusual when compared with other deposits of similar type. This makes this deposit particularly economically important but also scientifically interesting: the study of this deposit and its geologic environment aims at better understand the mechanisms responsible for the gold enrichment. The preliminary results presented in this document allow differentiating the principal volcanic units present in the deposit footwall (below the ore horizon). The characterization of the volcanic units in terms of chemical composition helps illustrate their distribution and then define the environment in which the deposit was formed, an essential component of the study of this important deposit.
GEOSCAN ID292516