Prästrun

Highlights

Historical sampling from the 1980’s returned anomalous niobium and uranium in rock chip samples including up to 0.45% U₃O₈, 1.2% Nb 0.07% Ta, and 0.26% Zr. Sampling occurred within anomalous outcrops over 1400 metre strike length, with the remainder of the prospect being covered by a thin glacial till. No drilling is known to have been completed at the prospect; however high quality geological and mineralogical studies were completed.

Basin conducted a short two-day field visit in Q4 2024 to attempt locating additional syenite gneiss outcrops. Three rock chip samples were collected from a syenite outcrop 130 m north of historical sample site (Figure 5) with assay results returning anomalous niobium, uranium and tantalum:

• PRAS-003: 3480 ppm Nb, 1153 U₃O₈, 185 ppm Ta, 1330 ppm Zn from a boulder at the base of the outcrop sampled in PRAS-003
• PRAS-001: 2750 ppm Nb, 658 ppm U₃O₈, 146 ppm ta, 1030 ppm Mn from a boulder at the base of the outcrop sampled in PRAS-003
• PRAS-002: 4350ppm Nb, 336 ppm U₃O₈, 74 ppm Ta from a syenite outcrop

Further field work at Prastrun is needed to delineate further the anomalous betafite bearing sienite. Scintillometer surveying of syenite outcrops presumed locations (covered by moss) returned higher than background values. A systematic ground radiometric survey and further rock chip sampling would be an excellent tool to map out the surface extent of betafite-bearing lithologies.