The Soules Bay Property is a lithium-REE exploration opportunity located 45 km south of Pickle Lake, Ontario.

The Soules Bay Property is within the Uchi-English River Subprovince boundary zone, being located about ~12 km north of the contact. The property, located along the south shoreline of Lake St. Joseph, is underlain by metasediments which have been intruded by pegmatite dikes believed to be associated with the S-type, peraluminous Twiname Batholith located immediately north of the property or the S-type, peraluminous Caron Batholith located several kilometers northeast of the property.

Observations of one pegmatite on the property were made by the Ontario Geological Survey (OGS) during Operation Treasure Hunt, a province wide reconnaissance of peraluminous granites and rare-element pegmatites done in the early 2000’s. They noted several important features with the pegmatites, including compositional zoning, graphic quartz intergrowth, grey-to-green muscovite, garnets and tourmaline. Mineralogically, the pegmatites were determined to be similar to the spodumene-bearing pegmatites at East Pashkokogan Lake, some 11 km to the southeast. A potassium feldspar sample (01-JBS-20) collected at this location was determined to be the most evolved and yielded the highest Cs value (153 ppm) of any potassium feldspar sample collected along the Uchi-English River Subprovince boundary zone during that survey (Operation Treasure Hunt, OFR6099). A muscovite sample collected from the same pegmatite yielded 921 ppm Li and a low K/Rb ratio of 46.558.

The following recommendation for exploration was provided for this area, arising from the reconnaissance work completed by the Ontario Geological Survey during Operation Treasure Hunt:

The newly recognized Twinname Lake stock is a fertile peraluminous granite that is currently the most easterly known in the Uchi-English River subprovince boundary zone. The pluton is the likely parental source of a profusion of peraluminous pegmatitic granite dikes in the general area outlined by Kay and Stott (1985). New niobium-tantalum-bearing pegmatite dikes were discovered by the present survey near the East Pashkokogan Lake spodumene pegmatite occurrence.

Source

Breaks, F.W., Selway, J.B. and Tindle, A.G. 2003. Fertile peraluminous granites and related rare-element mineralization in pegmatites, SuperiorProvince, northwest and northeast Ontario: Operation Treasure Hunt; Ontario Geological Survey, Open File
Report 6099, 179p.