iNTRUSIVES aROUND tHor & The Link to Epithermal Mineralization

Map Showing the location of a variety of intrusive rocks around the Thor deposit. The Silver Cup Anticline is the dominant control on the location of epithermal deposits in the area, and occurs along the northeast edge of the Kuskanax Batholith.

Eight km southwest of the Thor Project, the Trout Lake area hosts the well-known Max Endako-type molybdenum deposit; the age of this intrusive is well established at 80.2 MYA (Late Cretaceous). If the granitoid discovered at Thor is derived from a concealed intrusive body, this means that there are two prospective ages of fertile intrusive bodies in the Trout Lake Area. The table to the left outlines all of the known intrusive rocks in the Trout Lake Area, from oldest to youngest. This area has a lengthy geological history of intrusions, ranging from the Jurassic to the end of the Cretaceous period.

The granitoid found at Thor is identical in age to the Galena Bay Stock, located 20 km southwest of the Thor epithermal Deposit. It contains significantly more secondary biotite, which is a result of extensive hydrothermal alteration – increasing its prospectivity for mineralization. Both the Galena Bay Stock and any prospective intrusive at Thor have been subsequently emplaced along the margins of the much older Kuskanax Batholith. This is a common occurrence with porphyry deposits in British Columbia.