The Nine Mile Brook property is 25.13 km2 in size and located 10 kilometers southwest of the historic Brunswick 12 mine, one of the largest underground zinc mines in the world. Operating for 49 years, the Brunswick 12 is classified as a Supergiant, the geological reserves estimated at 335 Mt with production totaling 137 million tons grading 8.74% Zn, 3.44% Pb, 0.37% Cu, and 102 g/t Ag from 1964-2013.
At Nine Mile Brook, (3) VMS High-Grade mineral occurrences are present:
- Willett Horizon VMS occurrence North of the Lens
- High-Grade Nine Mile Brook VMS Lens
- Assays Certified to (38.18% (Pb-Zn) 7.527% (Cu) 14.5 oz (Ag) & 2.894 g/t (Au).
Hosting the Nine Mile Brook mineralization is the California Lake Group of rocks, one of the key units known to host VMS deposits in the BMC including Trevali Mining Corporations producing Caribou mine.
Typically, a VMS deposit consists of a series of mineralized lenses of varying sizes and orientation. At the Caribou Mine, the mineralization is composed of 7 en-echelon lenses zoned mineralogically from a copper rich (vent complex) near the bottom and western part of each lens to lead-zinc rich vent distal bedded sulphides near the top and eastern part of each lens.
At Nine Mile Brook, the High-Grade VMS lens is well banded, resembling classic Brunswick Horizon mineralization with copper rich mineralogy on the south side and Pb, Zn and Ag on the north with select grab samples assaying up to 14% Cu, 32% combined Pb/Zn, 1216 g/t Ag and 3.7 g/t Au. Measuring 2 x 10 meters at surface, the Nine Mile Brook VMS lens is found within a tectonic package accompanied by blocks of Spruce Lake rhyolite, a member of the larger California Lake Group.
The Spruce Lake rhyolite is locally well exposed, the Cu, Pb, Zn Boucher Brook occurrence located near the top of the sequence proximal to the contact with overlying graphitic slates. Time equivalent to the Nepisiguit Falls formation, host to the Supergiant Brunswick #12 mine, the Spruce Lake Formation is believed to be the source of the mineralized horizon. The Spruce Lake rhyolite also occurs in the deep footwall of the Canoe Landing Lake VMS deposit, 8 kilometers to the west.
These occurrences will all be analysed, and the Nine Mile Brook Lens will be the high priority target for Spring 2022. Are there a series of High-Grade VMS Lens’s or is it a small Lens broken off from the Main Source Deposit? Utilizing New Cutting-Edge Proprietary 3D-AI Technologies, Nine Mile Metals will find the Solution.