Greenridge survey outlines uranium targets at Sabre

Executive Summary

• Greenridge Exploration Inc. has released results from a high-resolution helicopter-borne mobile magnetotellurics (MobileMT) survey at its Sabre uranium project in the Athabasca Basin, Saskatchewan.
• The survey identified robust basement conductors at depths of 300–400 meters, interpreted as graphite-rich lithologies that may indicate structural and chemical traps for uranium deposition.
• Secondary conductivity anomalies were detected in the overlying Athabasca sandstone sequence, potentially indicating clay alteration halos associated with hydrothermal fluid flow and unconformity-type uranium mineralization.

Key Details

• Survey Methodology: Conducted by Expert Geophysics Ltd. (EGL) using their MMT system (airborne natural source audio-frequency magnetotellurics). Data processing was performed by Convolutions Geoscience.
• Survey Scope: 1,536 line kilometers flown at 200-meter line spacing, covering a 232-square-kilometer area.
• Depth of Investigation: The system is capable of investigating depths exceeding approximately one kilometer.
• Key Findings:
  • Basement Conductors: Identified at depths of ~300–400 meters; characteristic of graphite-rich lithologies.
  • Shallow Anomalies: Areas of secondary conductivity within the overlying Athabasca sandstone sequence, suggesting clay alteration halos near hydrothermal fluid flow.
  • Structural Corridors: Confirmed northeast-to-southwest trending corridors and cross-cutting features, some spatially associated with uraniferous sandstone boulders found at surface.
• Historical Context:
  • Historical exploration identified anomalous uranium-bearing sandstone boulders and outcrops.
  • Only five historical drill holes exist within current boundaries.
  • Hole MNL-02 (UEX Corp., 2006): Intersected highly anomalous dravite veining (boron-rich clay mineral) at 290.5 meters depth, a mineral commonly associated with uranium deposition in the basin.
• Future Plans: Moving loop time domain EM ground surveys are recommended for the winter of 2025–2026 to provide greater detail for future drill testing.
• Project Status: Sabre is fully permitted for uranium exploration (prospecting, geophysical surveys, and drilling) until November 30, 2027.
• Project Location: Northern edge of the Athabasca Basin, ~30 km west of Stony Rapids and ~10 km south of Fond du Lac, Sask.
• Portfolio Size: The Sabre project consists of 28 mineral claims totaling 23,178 hectares. Greenridge owns/has interests in 21 projects covering ~281,100 hectares, including 13 uranium projects (~194,350 hectares).

Notable Quotes

• Russell Starr, CEO: "Greenridge is very pleased to receive these geophysical results for Sabre, which confirms the company's belief that the project is highly prospective for unconformity-type uranium deposits at a time when uranium has become a critical commodity. Greenridge is one step closer to drill testing Sabre in the months to come."