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TitlePreliminary observations on the geological environment of the Paleoproterozoic auriferous volcanogenic massive sulphide deposit at Lalor, Snow Lake, Manitoba
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
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, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
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
ProgramTargeted Geoscience Initiative (TGI-4) Volcanogenic Massive Sulfide Ore Systems
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.

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