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Highlights
- over 300 uranium bearing, sedimentary rock boulders averaging 1.0 to 2.5% U3O8 and grading up to 4.5 % U3O8
- airborne radiometric survey identified intense uranium anomaly
- drilling successful in defining zone of significant stratabound U3O8
- target lies on top of mapped unconformity
Location and History
Moran Heights hosts an unconformity style uranium occurrence and lies northeast of the C Zone. It was initially identified as a target due to the presence of the Moran Heights boulder field of over 300 uranium-bearing boulders. Subsequent geophysical surveys and drilling programs identified the bedrock source of the boulders proximal to a nearby magnetic anomaly believed to represent an unconformity.
Geology
Pillow basalts of the Joe Pond Formation are unconformably overlain by reduced sandstone and conglomerate of the Heggart Lake Formation, which hosts the stratabound uranium mineralization. Copper mineralization and sometimes silver also occurs in the sandstone.
Previous Exploration Work
Limited drilling in the vicinity of the mineralized float by CANICO in the late 1970's intersected widespread and locally significant copper and silver mineralization including 0.24% copper over 32 metres, and 2.24% copper and 1.5 oz/t silver over 0.60 metres, suggesting the possibility of IOCG type mineralization in addition to the potential for significant uranium mineralization.
A radiometric survey in 2005 helped to locate the then unknown bedrock source of numerous mineralized float from the Moran Heights boulder field.
Twenty-five holes drilled during the 2006 exploration season at Moran Heights were successful in defining the zone of uranium mineralization hosted by the unconformity.
Drilling to date suggests a strike length of at least 120 metres.
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