F3 Uranium Corp. announced the commencement of the winter drill program at its 100% owned Broach Lake Property, on the recently discovered high-grade Tetra Zone, located just within the south-western edge of the Athabasca Basin 12km northwest of Paladin's Triple R and 16km west-northwest of NexGen Energy's Arrow high-grade uranium deposits. The 3,000-metre diamond drill program is designed to further test the extent of uranium mineralization at Tetra Zone, currently highlighted by key intercepts including PLN25-205, which returned 1.0 metre of 2.50% UO within a broader 22.5-metre interval averaging 0.26% UO, and PLN25-219A, which intersected 29.5 metres of total mineralization, including 27.5 metres continuous with 2.30 metres exceeding 10,000 cps.
The recent fall program successfully extended the interpreted mineralized plunge length from 60 metres to 135 metres. The two westernmost holes from that program are interpreted to have overshot the target area; the winter program will begin with down-dip and down-plunge step-outs in this direction before shifting to test the up-plunge extension, where approximately 300 metres of undrilled prospective shear zone remains toward the Athabasca unconformity. This unconformity area shows highly prospective geology and pathfinder element geochemistry in intercepts to date.
The natural gamma radiation detected in the drill core, as detailed in this news release, was measured in counts per second (cps) using a handheld Radiation Solutions RS-125 spectrometer which has been calibrated by Radiation Solutions Inc. The Company designates readings exceeding 300 cps on the handheld spectrometer (occ occasionally referred to as a scintillometer in industry parlance; this colloquial usage stems from historical naming conventions and the shared functionality of detecting gamma radiation between a spectrometer and a scintillometer)-as "anomalous", readings above 10,000 cps as " highly radioactive", and readings surpassing 65,535 cps as "off-scale". However, readers are cautioned that spectrometer or scintillometer measurements often do not directly or consistently correlate with the uranium grades of the rock samples and should be regarded solely as a preliminary indicator of the presence of radioactive materials. The Company considers uranium mineralization with assay results of greater than 1.0 weight % U3O8 as "high grade" and results greater than 20.0 weight % U3 O8 as "ultra-high grade".
All depth measurements reported are down-hole and true thicknesses are yet to be determined.
