Sabre Uranium Project
16 claims covering 16,041ha acquired by staking in 2021.
Northern margin of the Athabasca Basin near Richards Lake, SK, ~ 60 west of
the Hamlet of Stony Rapids. Year-round all-weather road access and nearby
The property is situated within the Snowbird Tectonic Zone, a major geological structure that transects the Athabasca Basin and includes several parallel northeast-trending fault zones including the Black Lake Fault. Prospective for unconformity-style deposits.
The historic Nisto Mine, which produced ~96 tonnes grading 1.38% U3O8 in the 1950s is located on the northwest side of the Black Lake fault to the east the property. The Fond du Lac uranium deposit, a small shallow uranium discovery found in 1970 is located 15km west of the Sabre property.
Underexplored district with relatively shallow depths to the Athabasca sandstone unconformity (estimated to range from 210 to 320 m), with potential for unconformity-style or deeper, basement-hosted uranium mineralization.
On October 25, 2022 ALX announced the completion of a prospecting program at Sabre. Two radioactive zones were located on surface in the Athabasca sandstone by ALX’s prospecting team adjacent to an interpreted structural zone of quartz vein brecciation.
Highlights of the 2022 Sabre Prospecting Program
- A significant trend of structural disruption in the Athabasca sandstone known as the Jigsaw Zone was discovered. The structure is exposed at surface as quartz veining and local quartz-breccia in abundant angular boulders (i.e., not far-traveled by glacial movement), sub-crop and outcrop of sandstone and can be traced over a trend approximately 150 metres long by 15 metres wide. The Jigsaw Zone is open along strike to northeast and southwest and disappears under cover in both directions.
- A trend of elevated radioactivity in boulders in possible outcrop or subcrop was located 15 metres to the south of Jigsaw Zone and is presumed to be a historical uranium-phosphate showing first reported in 1979. Two small pits (“West” and “East”) were hand dug by ALX to better expose the radioactive sources. Scintillometer readings of up to 550 counts per second (“cps”) and 250 cps were obtained from inside the bottom of the West and East pits, respectively (10 to 20 times background radiation levels).
The elevated radioactivity in the West and East pits is associated with dark purple to red sandstone with bleached patches and local spots of a very pale greenish alteration. Samples at the West Pit may be associated with frost-heaved subcrop or a very large boulder. ALX considers the radioactive sandstone found at the Jigsaw Zone highly significant, considering the depth to basement is estimated to be at least 300 metres, which implies the occurrence of a significant hydrothermal event that carried silica-rich and uranium-bearing fluids to surface.
Four samples of the quartz vein and quartz-breccia sandstone from the Jigsaw Zone and four radioactive samples from the West and East pits adjacent to the Jigsaw Zone were submitted to the Saskatchewan Research Geoanalytical Labs in Saskatoon, Saskatchewan for a full suite of geochemical analyses. In addition, sub-samples were submitted for short-wave infrared spectroscopy (SWIR) analyses to determine the clay signature of the samples. Results will be released after their receipt, compilation and interpretation.
Additional work at Sabre in 2023 may include airborne magnetic/radiometric surveys, airborne electromagnetic surveys, surface prospecting, mapping and Spatiotemporal Geochemical Hydrocarbon (“SGH”) soil surveys across the highest-priority areas to optimize potential drill targets.
Exploration Programs Pre 2008
Historical prospecting discovered uranium-bearing sandstone boulders and outcrop with up to 375 parts per million (“ppm”) uranium.
Only 5 historical drill holes on the property, which identified intense dravite alteration, significant hydrothermal activity and the presence of Boron.