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Introduction
The Black Lake property consists of nine mineral claims totalling 36,800 hectares. It is located on the north rim of the Athabasca Basin of northern Saskatchewan, approximately 20 kilometres southeast of the town of Stony Rapids, and lies along the seasonal road to that community. JNR Resources holds a 100% unencumbered interest in the property.
The property covers a 40-kilometre strike length of the Snowbird/Black Lake structure, a major crustal feature that represents the strike extension of the mineralized Virgin River shear, located some 225 kilometres to the southwest. Depth to the unconformity in this area is estimated to be around 200 metres along the northern property boundary, and increasing to 500 metres near the southern boundary.
Importantly, a number of the target areas on the property are amenable to year-round exploration, including diamond drilling.
Previous Work
Historic work in the area, which dates back to 1948, was focussed on the nearby Nisto uranium mine. In the late 70's and early 80's parts of the property were covered by an assortment of airborne geophysical surveys that identified prominent electromagnetic (EM) conductors. Although there was very little drill follow-up, what drilling there was returned anomalous results.
In the late 90's, the property was covered by both airborne and ground geophysical surveys and a boulder geochemical survey. Two strong basement conductors were identified and tested by three diamond drill holes. Depth to the unconformity was a maximum of 260 metres. Although no economic uranium mineralization was intersected, the geological and geochemical results were very encouraging and warrant follow-up. Furthermore, the boulder geochemical survey identified a uranium anomaly and a strong illite-dravite-chlorite anomaly, both of which remain unexplained.
In 2005, JNR completed a 1400-line kilometre airborne magnetic and MEGATEM survey over the property, resulting in the identification of several anomalous EM and ground magnetic responses. The interpreted EM conductors are anywhere from two to eight kilometres in length. Four grids totalling 135 kilometres of cut line were established over some of the more promising conductors and ground EM surveys totalling 190 kilometres were subsequently completed.
In the fall of 2007, Goldak Airborne Surveys completed a 7,700 line-kilometre high-resolution gradient survey over the property, the results of which were used to better define future drill targets.
2008 Exploration Program
The 2008 drilling program (four holes; 2,815 metres) focused on a six-kilometre long northeast-trending conductive/magnetic target through the central portion of the property. An early ice break-up prevented completion of the planned program in its entirety. The drilling program intersected significant structural features and alteration in the sandstone, accompanied by anomalous clay geochemistry and pathfinder elements including partial U (up to 10.7 ppm), Ni (up to 5.0 ppm), As (up to 12.0 ppm), Co (up to 1.0 ppm) and V (up to 6.0 ppm).
A 2,454 line-kilometre airborne gravity gradiometer survey was conducted over the project lands in September 2008. This survey provided additional structural information, both near surface and at depth, and defined new targets for drilling. Seven gravity targets having a range of characteristics common to Athabasca uranium deposits were identified.
2009 Exploration Program
In 2009, a 344 line-kilometre AirMT (ZTEM) geophysical survey was flown over the southern part of the property to better delineate the EM conductors. The results provide additional constraints on the structural complexity of the Snowbird tectonic zone. Reprocessing of the 2005 Megatem data by Condor geophysicists was also completed and resulted in a better definition of the deeper EM conductors in the central part of the property. Well over a dozen priority drill targets have now been identified on the Black Lake property.
Quality Assurance / Quality Control
JNR's Vice-President Exploration and Chief Operating Officer, David L. Billard, PGeo, is the Qualified Person for the Company's Athabasca Basin uranium projects. All technical information for the projects is obtained and reported under a formal quality assurance and quality control (QA/QC) program, details of which are presented in the PDF link below.
 Quality Assurance & Quality Control Program
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