ESO Uranium Corp. ("ESO”), a predecessor company of ALX, acquired the property with Acme Resources Inc. in 2004. Previous work includes:
2006 ESO carried out Max‐Min HLEM and MEGATEM surveys (see ESO news release dated October 29, 2006).
2007 ESO completed a detailed radon in soil gas survey southwest and northwest of Skull Lake where historically anomalous radon values had been obtained by Amok in 1982‐83 (Powell, 1985). Samples were collected at 25 m intervals along 4 lines spaced 100 m apart. 45 samples were collected in the southwest area and 5 in the area northwest of Skull Lake. Radon values for the 50 samples collected showed a maximum value reaching 46 cpm (see ESO news release dated March 5, 2007).
2012 Special Projects Inc. was commissioned by ESO to fly a 6,475 line-km high-resolution magnetometer and radiometric airborne survey. The survey was flown along east‐west lines spaced 50 m apart and on north‐south tie lines 500 m apart. The magnetometer survey showed sharp contrasts between magnetic highs, interpreted as Archean granites, and magnet lows, interpreted as Paleoproterozoic metasedimentary rocks. The survey helped to define a number of extensive magnetic low ‘basins’ on the property. Interpreted structural features have predominant NNE and NW directions as well as some E‐W features.
2013 Alpha Exploration Inc. ("Alpha") carried out a helicopter-borne VTEM survey over the Middle Lake property by Aeroquest Airborne. The 310 line-km survey was flown along northeast (040° azimuth) to southwest lines spaced 100 m apart with tie lines flown perpendicular to these at 1000 m spacing. The survey identified a number of generally northwest‐trending, trough-type EM anomalies, which are possibly related to basement conductivity and most likely to graphitic zones. The conductors are generally subparallel to the northwest geological trend and airborne magnetometer trends.
Coincident radon and helium surveys were carried out at the up-ice termini of two historic radon anomaly trends and mineralized boulder dispersion fans. These were the Donna (Lac Hubert – Skull Lake) fan and the Middle Lake fan, which were referred to as the West and East grids respectively. RadonEx carried out the radon sampling program with 409 samples collected from soil gas, muskeg water, and lake water and sediment. Samples were generally collected at 50 m spacings along lines spaced 50 m apart. The high-density sampling area west of Middle Lake was sampled on a 25 m grid spacing. Radiometric readings with a hand held Exploranium GR-110 were also collected at all of the land and muskeg sample locations. Petro‐Find Geochem Ltd. carried out the initial helium sampling program in August and a follow-up program in October 2013. In all, 557 samples were collected (375 in August, 182 in October) and analyzed for helium as well as hydrogen and neon. The reason for carrying out such a survey is because these gases can be related both directly and indirectly to uranium mineralization. Several promising helium anomalies were obtained on both the East and West grids. The spatial association of radon and helium anomalies corresponds geographically with the up ‐ ice termini.
2006 ESO's drilling encountered extensions to the known mineralization intersected by Amok in 1979 (0.85% U3O8 over 2.3 meters in hole CAR 425) in 2 of the 8 holes drilled. Drill hole CLU‑01 intersected 0.46% U3O8 over 1.5 m from 174.0 to 174.5 metres. Drill hole CLU‑07 intersected two zones of uranium mineralization: one zone returned 0.17% U3O8 over 7.0 metres from 153.0 to 160.0 m, including 0.82% U3O8 over 1.0 metre and a second zone contained 0.20% U3O8 over 2.0 m from 175.0 to 177.0 metres. These step-out holes confirmed the presence of uranium in the area of Amok's hole CAR-425 (see ESO news release dated May 1, 2006).
2005 ESO completed a MEGATEM® II airborne geophysical survey. The survey consisted of 2,052 line-km flown at 400-metre spacings and was designed to locate known conductors which trend on to the Cluff Lake properties from the neighboring Shea Creek Project (UEX/AREVA) (see ESO news release dated October 17, 2005).
2006 A horizontal loop EM survey was completed over two grids totaling 58 line-km to refine and further delineate numerous conductors detected by the 2005 MEGATEM survey (see ESO news release dated October 29, 2006).
2007 ESO completed a detailed radon in soil gas survey that identified two radon anomalies.
ESO completed a 27-hole drill program where 9 holes intersected radioactivity (see ESO news release dated October 17, 2007). A further 7 holes were completed in the fall of 2007 for a total of 4,796 metres of core drilling.