Sulphide deposits of the Hanson Lake area

Abstract

This thesis embodies a field and laboratory study of the sulphide deposits of the Hanson Lake area, northern Saskatchewan. The field mapping of the mineralized showings indicated none, or very little, lithologie control of sulphide emplacement but there is some structural control by fractures, slips, and weak shears.

Thin section studies indicate a uniform grade of dynamic metamorphism belonging to the amphibolite facies.

Very similar mineralogy and paragenesis of the sulphide assemblages in the different mineralized zones indicates the deposits are of similar ages and related origins. Mineralization at Wildnest Lake, 25 miles northeast of Hanson Lake, shows similar features. The deposits are classified as being deep seated, high temperature, hydrothermal replacements.

None of the deposits can be mined at present day costs and prices, but two or three may produce someday. The discovery of a mineralized zone in a gneissic area may encourage future exploration in such areas.