en.Wedoany.com Reported - F4 Uranium (TSX-V:F4U) has expanded its drilling program at the Murphy Lake project in the Athabasca Basin, Saskatchewan, Canada, by 60%, increasing the planned meterage from 2,500 meters to 4,000 meters. This decision was driven by the discovery of anomalous radioactivity in all tested target areas.
The company stated that drilling efficiency and "encouraging" results prompted this expansion. Recent drilling encountered anomalous radioactivity in basement rocks below the unconformity, with readings up to 350 counts per second (cps) over 1.0 meter. Intense limonite alteration, bleaching, and clay alteration were also observed in the sandstone above the unconformity.
The latest three drill holes were completed at Target Areas Four and Five along the Murphy Lake South trend. All three holes encountered anomalous radioactivity and intense alteration along strike from a historical mineralized zone. This historical zone returned 0.065% triuranium octoxide (U₃O₈) over 2.5 meters, including a 0.5-meter section grading 0.242% U₃O₈.
Key intercept data includes: handheld scintillometer readings exceeding 300 cps over 1.0 meter, with a peak of 510 cps, in basement rocks below the unconformity; corresponding downhole gamma readings exceeded 500 cps over 3.8 meters, with a peak of 2,564 cps. Another drill hole returned handheld scintillometer readings exceeding 300 cps over a total thickness of 1.0 meter, with a peak of 350 cps.
F4 stated that seven drill holes have now been completed across multiple target areas, with anomalous radioactivity encountered in all tested zones. Five of these drill holes showed elevated radioactivity, and each exhibited strong hydrothermal alteration at the unconformity.
Erik Sehn, Vice President of Exploration, stated that the program "continues to deliver strong results." Sehn said: "The latest three drill holes on the Murphy Lake South trend have added more anomalous radioactivity and intense alteration, bringing the total number of drill holes encountering radioactivity across four target areas to five. With approximately 3,200 meters drilled to date, these encouraging intercepts, combined with better-than-expected drilling efficiency, justify expanding the program to 4,000 meters."
Drilling is now advancing to Target Area Six to test a strong parallel conductor identified by a recently completed, partner-funded moving loop electromagnetic survey.
The 609-hectare Murphy Lake project is located in the northeastern corner of the Athabasca Basin, 30 kilometers northwest of Orano's McClean Lake deposit and 5 kilometers south of IsoEnergy's (TSX:ISO) Hurricane uranium deposit. F4 Uranium is a Canadian junior resource company focused on the exploration and development of strategic uranium assets within the Athabasca Basin in Saskatchewan.
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