![]() The geophysics work from 2022 shows compelling gravity targets, and the data generated in the 2023 gravity program will guide future drilling programs to test these anomalies using inclined drillholes. This steep reef margin geometry at Gayna was not tested by historical, sub-vertical drill holes that targeted sub-horizontal, shallowly dipping mineralization. This mineralization is interpreted as the distal expression of Kipushi-style massive sulphide mineralization that may be present along the subvertical margins of the carbonate reefs. Sphalerite and minor galena occur as infill within veins, vugs, and breccias along with dolomite-calcite-quartz-pyrite. Mineralization discovered at Gayna to date occurs in veins and breccias in carbonate rocks similar to Mississippi-Valley-Type (MVT) mineralization, or Irish-type Zn-Pb mineralization. This sharp, near-vertical interface between the reef and the surrounding sedimentary rocks is being targeted as an environment analogous to the high-grade Big Zinc Zone at the Kipushi deposit in the Democratic Republic of Congo 1. The reefs are surrounded by comparatively deeper-water sediments intermixed with reef-derived talus, with individual reefs several hundred metres to over three kilometres in diameter and hundreds of metres in thickness. These carbonate units consist of a succession of shale-carbonate rocks containing calcimicrobial limestone reefs formed by stromatolites and possibly early sponges. The Gayna prospects are hosted in dominantly carbonate sedimentary rocks of Neoproterozoic age within the Mackenzie Mountains. ![]() Gayna Project (zinc-lead-silver-gallium-germanium) Map 3: Gayna Project Claims and Historical Drill Collars Map 1: Gayna Project Location Relative to Fireweed’s Flagship Macpass and Mactung Projects The survey provided infill coverage of the 2022 grid covered targets A, B, C, F, and L (Map 4) and expanded the grid to cover more reef-margin targets. With recent surface samples showing high-grade zinc (Zn) and lead (Pb), the 2023 survey work will allow higher resolution definition of targets in preparation for future drill testing.”Ĭrews completed a three-week long, low-impact ground gravity survey at Gayna.
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