Till Geochemistry of Tahtsa Lake District North and Adjacent Areas, West-Central British Columbia - A Key Ingredient for the Discovery of New Porphyry, VMS, and Polymetallic Vein Mineralization 

Key Researcher(s):  T. Ferbey

Project ID:  2008-031

Key Research Organization(s):  British Columbia Geological Survey

Project Location:  Bulkley Nechako

Focus Area:  Minerals


Project LocationA two-year, Quaternary geology and till geochemistry program is being undertaken for the northern portion of the Tahtsa Lake district, and adjacent areas (NTS 93E/15, 16, and 93L/1, 2). This area has been chosen as it: 1) has high potential to host porphyry copper, molybdenum, and gold-style mineralization (e.g. Huckleberry Mine, Berg and Lucky Ship developed prospects), epithermal and perhaps VMS-style mineralization, and polymetallic veins (e.g. past producers Equity Silver and Emerald Glacier); 2) is an area where mineral exploration is hindered by an extensive till cover and relatively little bedrock out crop; and 3) is adjacent to Huckleberry Mine where there is a clear relationship between Cu, Mo, Au, Ag, and Zn in till geochemical data and the locations of ore zones and polymetallic veins on the mine property. There presently are large areas of unstaked ground within the study area and to assess the mineral potential of it, Quaternary mapping and till sampling will take place in two mapsheets per year, with resultant Quaternary geology maps and till geochemical data being released annually.

This project, located within Geoscience BC's QUEST-West study area, will provide to the mineral exploration community new, high-quality, regional-scale, geochemical data that will help guide exploration efforts in an area with high mineral potential and an extensive cover of glacial drift. Integrating interpretations of these data with other geochemical and geophysical data being collected by Geoscience BC in the QUEST-West study area, and historic data that have been collected by the British Columbia Geological Survey and the Geological Survey of Canada, will provide a powerful tool for mineral exploration companies working here. These geochemical data will generate new mineral exploration activity, and resultant economic opportunities, in an area adversely affected by the mountain pine beetle infestation.