Radisson is located on the Eeyou-Istchee-James Bay Territory, a vast area in west-central Québec. The area is in the early stages of exploration since the initial discovery of the Eléonore Mine in 2004, which lies eighty (80) kilometres southeast. The property is just beginning to reveal its mineral potential. The property consists of 86 claims which were acquired in 2011 from a third party under an option agreement. The fifty (50) square kilometer (5,000 hectares) property has 15 kilometers of strike-length over very favourable geology and is now owned 100% by LaSalle.
Geologically, Radisson lies within the La Grande Sub-Province near the contact with the Opinaca Sub-Province. These Archean age sub-provinces consist of volcano-plutonic and sedimentary assemblages that are transected by a series of east-west, west northwest – east southeast and northeast-southwest shear zones. Recently, numerous companies have reported significant assays from new precious and base metal discoveries in the area including the LaSalle Radisson property.
The immediate region of the Radisson property is currently a hot-spot for exploration within the entire Eeyou Istchee – James Bay with several companies, including LaSalle, engaged in active exploration programs. Radisson focuses several geological features that are commonly spatially associated with large gold mines including regional structures, felsic to mafic intrusions, multi-element mineral endowment, and evidence for an extensive gold system.
LaSalle initially acquired the property based on the presence of a government lake sediment survey which reported anomalous nickel and copper in local lakes. At the time of acquisition, Letourneur and Leo were the only mineral showings on the property, and according to published government geological maps, the local and regional geology of the area including Radisson was underlain predominantly by granitic rocks.
As a private company, in 2012-2014, LaSalle completed prospecting and an airborne VTEM and magnetic survey. The VTEM survey outlined several conductive zones including the MM5 from which follow-up field work demonstrated the conductive zones contained anomalous copper and nickel values with the best results being 0.1% Cu, 0.25% Ni, 168 ppm Co and 0.2 ppm Pd over 29.0 metres from channel sampling at MM5.
The 2014 field program yielded several significant results:
LaSalle returned to Radisson early in 2020 and completed a 44-kilometre gradient induced polarization (IP) geophysical survey focused in the area of the MM5, Eli and Wisht zones. The IP survey detected several chargeability anomalies potentially indicative of disseminated sulphides, and with east-west trending axes extending over lengths varying from 475 to 1,200 metres. Some of these IP axes demonstrate good correlation with anomalous surface sampling results in gold and copper mineralization, while others, particularly near the Wisht Zone, occur in an area exhibiting complex deformation which LaSalle believes to be favourable for gold enrichment.
The northernmost IP chargeability trend extends for over 1,200 metres and could reflect disseminated sulphide mineralization possibly related to the westward extension of the MM5 zone, The MM5 zone is identified by a strong VTEM conductor and demonstrated by field work to be anomalous in copper-nickel-platinum group element mineralization.
The reconnaissance OreVision survey outlined several chargeability zones believed to be the signature of disseminated sulphide mineralization and will be targeted for follow-up exploration work. Significantly, one of the reconnaissance lines east of the MM5 zone confirmed a VTEM anomaly east of the MM5 occurring under a lake as having a probable bedrock source and therefore will be drill tested.
In the summer of 2020, geological mapping redefined the property as highly prospective for gold mineralization and identified several favourable geological features typical of orogenic gold deposits. In addition, a soil survey along the southeast boundary of the property outlined several gold-in-soil anomalies, the highest value obtained was 0.545 g/t gold which is proximal to a high-grade gold occurrence identified by Harfang Exploration Inc. (‘Harfang’) just south of the property boundary.
Between 2018-2020 Harfang has methodically explored the adjacent Serpent property, successfully defining a large 8 square kilometre gold in bedrock anomaly characterized by high-grade gold in quartz veins up to the southern boundary of Radisson. The area encompassed by this gold in bedrock anomaly also contains a gold in till anomaly described by Stuart Averill of Overburden Drilling Management as being locally derived and one of the most significant in Canada. Harfang suggests the gold mineralization may be related to a structural corridor, referred to as the Stu Structure, which trends west-northwest onto the Radisson property.
DISCOVERY of HIGH-GRADE GOLD – FALL 2020
In fall 2020, prospecting the interpreted west-northwestern extension of the Stu structural corridor discovered the Goldhawk and Goldfang high-grade gold showings. Both zones zones occur within an area defined by the intersection of a series of east-west structures within the west-northwesterly trending gold-bearing Stu Structure.