Lake Resources (ASX:LKE) reports that deeper drilling at the Kachi Lithium Brine Project in Argentina indicates higher lithium grades and significantly deeper vertical extents of the lithium-bearing brine in the central resource area.
The clean lithium developer says the K24D41 hole has important implications for the vertical extent of the lithium brine resource in the central resource area.
Director of Geology and Hydrogeology Michael Gabora says the lithium grades are some of the best Lake Resources has measured averaging 267mg/L over 445m.
David Dickson adds: “With this second hole intercepting brine between the current bottom of the measured and indicated resource at 400m to more than 600m, it is becoming clear that there remains significant upside for the deposit.
These results will positively impact any future resource updates in support of the completion of our phase one DFS.”
In Lake’s resource update on 15 June 2023, the company reported that future drilling was targeting additional step out holes and exploring the deeper resource beyond 400m bgs. A subsequent update on 22 August 2023 provided highlights from drillhole K23D40, the first hole at the Project drilled beyond 430m bgs to a total depth of 610m bgs, which measured lithium brines over 322m, returning grades of 209-254 mg/L.
Borehole K24D41, which forms the basis of most of this update, is the second hole advanced to more than 600m and similarly demonstrates lithium brine to depths of over 600m.
The data from both these drillholes will be used to support future resource updates and the hydrogeologic models being developed to simulate the extraction and injection wellfields as part of the project’s Definitive Feasibility Study (DFS) for phase one.
Lake says the Kachi Project has shown continual increases in Mineral Resource Estimates since the maiden estimate of 4.4Mt of contained battery grade Lithium Carbonate Equivalent (LCE) in inferred and indicated categories was announced in November 2018.
Write to Adam Orlando at Mining.com.au
Images: Lake Resources
