Publication Type:Book Chapter
Source:Explore in Manitoba; report of activities 2008, Manitoba Geological Survey, Winnipeg, MB, Canada, Volume 2008, p.18-28 (2008)
Keywords:alteration, Canada, faults, Flin Flon Manitoba, geochemical methods, geochemical surveys, geochemistry, Greenstone Belts, host rocks, igneous rocks, lithofacies, lithogeochemistry, lithostratigraphy, Manitoba, massive deposits, massive sulfide deposits, metal ores, Metallogeny, metamorphic belts, mineral deposits, genesis, Mineral exploration, Paleoproterozoic, Petrology, Precambrian, proterozoic, shear zones, stratigraphic units, surveys, upper Precambrian, volcanic rocks, Western Canada
The goal of this two-year research project is to characterize and describe the Schist Lake and Mandy volcanogenic massive sulphide (VMS) deposits and their hostrocks, and to determine if these VMS deposits are time-stratigraphic equivalent to those occurring in the main Flin Flon camp. The first year of this project focused on the area around the Schist Lake mine, where detailed lithofacies and alteration facies maps were completed, along with detailed field descriptions of each lithofacies. The mine is hosted by a succession of mafic and felsic volcaniclastic rocks that were deposited in a basin environment. Geochemical study of these rocks has shown that all lithofacies share common interelement ratios and can be divided into three or possibly four populations, including a mafic population, a felsic population, a bedded tuff facies, and a couple of 'odd' samples making up a possible fourth, felsic population. A preliminary alteration study illustrates that most of the samples have undergone extensive chlorite (and minor pyrite) alteration that is typical of VMS deposits. A thorough geochemical analysis of the hostrocks and alteration will be undertaken pending geochemical results from the systematic drillcore samples collected during the summer of 2008.
GeoRef, Copyright 2018, American Geological Institute.<br/>2009-064424<br/>Mandy Deposit<br/>Schist Lake Mine