Pure Energy Minerals Announces Filing of NI 43-101 Inferred Resource Technical Report for its Nevada Lithium Brine Project
The independent technical report, titled 'Inferred Resource Estimate For Lithium, Clayton Valley South Project, Clayton Valley, Esmeralda County, Nevada, USA' (the 'Clayton Valley Project' and the 'Technical Report'), dated July 17, 2015 was prepared for the Company by Raymond P. Spanjers, P.G., of North Carolina, USA, a 'qualified person' within the meaning of NI 43-101 and independent of the Company. The Technical Report is available under the Company's profile on SEDAR at www.sedar.com and is available on the Company's website at www.pureenergyminerals.com.
The Technical Report outlines an Inferred Resource estimate on the Clayton Valley Project of 816,000 metric tonnes of Lithium Carbonate Equivalent (LCE), present as easily-extractible brine in two aquifers (Main Ash Aquifer and Lower Aquifer System) beneath the Company's 8,004 acres of claims. The claims are comprised of three contiguous blocks and overlie a deep basin structure. The in-situ lithium brine resource was estimated as follows:
Zone |
Brine Volume (km3) |
Average Li Grade mg/L |
Lithium Resource LCE (metric tonnes) |
Northern Zone Upper Part of Main Ash Aquifer |
0.019 |
102 |
10,300 |
Northern Zone Main Ash Aquifer |
0.016 |
370 |
31,700 |
Northern Zone Lower Aquifer System |
0.158 |
194 |
163,000 |
Southern Zone Main Ash Aquifer |
0.451 |
102 |
245,000 |
Southern Zone Lower Aquifer System |
1.857 |
37 |
366,000 |
Total |
|
|
816,000 |
Note: Average effective porosity of 0.34 was used in brine volume calculations. LCE is the industry standard terminology for, and is equivalent to, Li2CO3. 1 mg/L Li metal is equivalent to 5.32 mg/L LCE and no other components of the brine were used to derive the LCE estimate. All other pertinent assumptions are discussed in the Technical Report.
To advance the Clayton Valley Project towards an Inferred Resource, the Company completed an intensive exploration programme consisting of drilling two new boreholes to a maximum depth of 970 ft. (296 m); installing one production-style well and completing long-term pumping tests; conducting detailed gravity surveys in the northern part of the claims; downhole geophysics; a cutting-edge seismic-reflection survey across the entire claim area; and geological mapping and analysis of a wide range of brine and soil samples. In addition, the Company was able to use data from two previous boreholes that had been drilled on the Project. Using these data, the Independent Qualified Professional was able to determine the following key aspects of the resource:
- All four boreholes drilled to date have encountered lithium-brines;
- The boreholes drilled have not found the base of the lithium brine-bearing zones;
- The zones that host the brines appear to extend much deeper into the basin and extend laterally effectively continuously throughout the whole claim area of Pure Energy;
- Pumping tests show that the brine can be sustainably pumped at rates equivalent to those used for production on the adjacent Silver Peak property; and,
- The Inferred Resource of 816,000 metric tonnes of LCE was estimated using conservative parameters (details in the technical report www.pureenergyminerals.com).
Qualified Person and Quality Control/Quality Assurance
Gerhard Jacob, P.Geo, EFG (European Geologist), is a qualified person as defined by NI 43-101, and has supervised the preparation of the scientific and technical information that forms the basis for this news release. Mr. Jacob, P.Geo is not independent of the Company as he is a director.
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