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Location: 177 km NW from Salta, Argentina
Riparian Plaza Level 35, 71 Eagle StreetGPO Box 3024BrisbaneQueensland, Australia4000
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The project is a lithium salt lake deposit, located in a closed basin in the Andean mountain range in Northern Argentina.The sediments within the salar consist of halite, clay, silt, sand and gravel which have accumulated in the salar from terrestrial sedimentation from the sides of the basin. Brine hosting dissolved lithium is present in pore spaces and fractures within unconsolidated sediments.Evaporation of brines entering and within the salt lake generates the concentrated lithium that is extracted by pumping out the brine.The sediments are interpreted to be essentially flat lying with unconfined aquifer conditions close to surface and semi-confined to confined conditions at depth.Salar de Cauchari is a mixed style salar, with a halite nucleus in the centre of the Salar overlain with up to 50 m of fine grained (clay) sediments. The halite core is interbedded with clayey to silty and sandy layers. The Salar is surrounded by relative coarse grained alluvial and fluvial sediments. These fans demark the perimeter of the actual Salar visible in satellite images and at depth extend towards the centre of the Salar where they form the distal facies with an increase in sand and silt. At depth (between 300 m and 600 m) a deep sand unit has been intercepted in several core holes in the SE Sector of the Project area.The brines from Salar de Cauchari are solutions nearly saturated in sodium chloride with an average concentration of total dissolved solids (“TDS”) of 290 g/l. The average density is 1.19 g/cm3. Components present in the Cauchari brine are potassium, lithium, magnesium, calcium, chloride, sulphate, bicarbonate and boron.
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