Hoppy Lake Property
The Hoppy Lake Property covers an area of 1924 hectares and is ~10km southwest of the Cigar Lake Mine. AREVA’s Close Lake Deposit, which has been developed since 1978, lies just 1.5km north of the HLP.The higher grade unconformity style mineralization at the Close Lake Deposit is a hydrothermal breccia consisting of up to 30% clay, 15 to 20% massive pitchblende, 30 to 35% niccolite, up to 10% gersdorffite, up to 5% galena and pyrite in a fine-grained matrix of pitchblende disseminated in clay. There are local high gold values(up to 3.7 g/t) locally associated with the highest grade uranium. To date, the deposit has a strike length of 320 m (1,049.9 ft) and a width of 160 m (524.9 ft).
At the Close Lake Deposit, mineralization is associated with highs in the unconformity surface. The basement rocks show the regional northeast-southwest lineament trend emparted by the Hudsonian Orogeny. This trend is intersected by a series of early major east-west trending faults. A series of northeast-southwest trending, south dipping post Athabasca faults have displaced the unconformity by as much as 25 m (82.0 ft). The northeast-southwest trending faults broke the Athabasca Group into a series of rotated blocks. Mineralizing fluids moved up and along the northeast-southwest trending faults. The deposit area is also cut by a series of late north-south trending faults that exhibit dextral horizontal displacement. The north-south faults are post Athabasca deposition and post mineralization. Folding on the property centers around Archean granitoid domes. The Samson Dome occupies the core of a major southwest plunging anticline.
Controls on and features of the mineralization are:
(1) Uranium mineralization is associated with unconformity elevation highs.
(2) In mineralized areas, there is an upward arching of a grey alteration zone in the sandstone and quartz-filled fractures above the unconformity.
(3) Basement rock that contain uranium mineralization are not hematized.
The perched mineralization, which is lower grade, is related to brecciation of sandstone blocks. The mineralization consists of siderite, gersdorffite [(NiCoFe)AsS], covellite, galena and niccolite (Ni(AsS)) nodules floating in a pyrite carbonate matrix. The mineralization occurs as steeply dipping veins and fracture fillings. Pitchblende occurs as a film on the nodules.
In 2007, Condor Consulting completed an interpretation report for Dejour Enterprises/Titan Uranium and identified a number of Target Zones deemed worthy of follow-up. The report describes the processing and analysis of several VTEM airborne electromagnetic and magnetic surveys carried out for Dejour by Geotech from September-October 2006. The object of the survey was to explore for unconformity style uranium mineralization of both the Simple (Low Rare Earth Elements, (REE) basement-hosted) and the Complex (High Rare Earth Elements, (REE) sandstone-hosted) types. Based on experience elsewhere in the Basin, basement hosted deposits are commonly associated with graphite and are expected to be conductive or associated with conductors.
Two Target Zones (TZ) of note were discovered at Hoppy Lake: H-2, a north-south trending TZ and H-3, a northeast trending TZ, catching the southeastern most portion of the property. The central portion of the H-2 TZ is described as weak to very weak basement conductors which increase in intensity to the north. TZ H-3 corresponds to a magnetic low, presumably a fault. For the purpose of the report, the depth to the basement unconformity was estimated at ~600m.