UPDATE: Athabasca Uranium Up 11% as Intersects Strong Alteration Zone at Keefe Lake
Athabasca Uranium Inc. (UAX.V) reported that diamond drill hole AU4-1, part of a multi-hole winter drilling program at its Keefe Lake Project in northeast Saskatchewan, has intersected a large zone of strong and sustained alteration, beginning at approximately 172 meters true depth. It said Hole AU4-1 has now crossed 370 meters, at an 80-degree angle, bearing southeast towards a subtle subsurface EM anomaly identified through Aerotem interpretations. "The main alteration zone is a 25-meter thick interval of clay minerals at and below the unconformity; this overprints a 170+-meter multi-generational healed quartz stockwork, overprinting an older mylonite. At depth, the basement mylonite contains granitic pegmatite veins up to 50 centimeters thick. Select samples have been sent for PIMA and geochemical analysis," it said.
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