Global Uranium completes geological mapping at Airline

Executive Summary

• Global Uranium Corp. completed detailed geological mapping at its Airline project in the Wind River basin, Wyoming, as part of its 2025 field program.
• The mapping validated key geological units, including the Tertiary Wagon Bed formation and Archean crystalline basement, while identifying critical stratigraphic targets such as the unconformity between these units.
• Two priority exploration horizons were identified: the unconformity zone showing anomalous radioactivity and alteration, and a discrete arkosic sandstone horizon (Scorpion unit) with coincident radiometric highs.

Key Details

• Project Location: Airline Project, Wind River basin, central Wyoming.
• Mapping Scope: Completed over one week in late October 2025 by Big Rock Exploration.
• Geological Findings:
  • Wagon Bed Formation: Confirmed widespread presence; characterized by tuffaceous sandstones, interbedded tuffs, and granola/popcorn-style weathering textures.
  • Archean Crystalline Basement: Mapped in several locations, including granite and monzogranite with abundant pegmatitic dikes, deep weathering, and bleaching near the overlying unconformity.
  • Flathead Sandstone: Outcrops identified on the western side of the study area.
  • Arkosic Sandstone: Outcrops sharing similarities with the Wind River formation, featuring porous textures and local iron-oxide nodules.
• Priority Horizons Identified:
  1. Unconformity Zone: Contact between Wagon Bed formation and Archean granite; documented anomalous radioactivity, bleaching, and clay alteration.
  2. Scorpion Unit: A discrete arkosic sandstone horizon where radiometric highs coincide with favorable textures and local structures.
• Mineralogical Observations:
  • Hand samples near the unconformity showed intense clay alteration and hematite replacing former pyrite crystals.
  • Uranium-bearing minerals identified include autunite and a possible occurrence of metatorbernite (visible under UV light).
  • Mineralogical identification is pending thin-section work; no conclusions drawn on mineral origin or paragenesis.
• Future Plans:
  • Integration of mapping data with ground-based radiometric grid, geochemical assays, and mineralogical results.
  • Refined stratigraphic modeling and drill target development for 2026.
  • Potential additional focused mapping in eastern/northeastern parts of the property and northwest area (contact zones between granites and Eocene sediments).

Notable Quotes

• Ungad Chadda, CEO: "This mapping program has strengthened our geological understanding of the Airline project and confirmed several important features that warrant further work. These results will play a meaningful role in refining our next steps and informing our broader exploration strategy."