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Cypress Reports on Dean Lithium Claystone Solubility Results in Clayton Valley, Nevada

12.01.2017  |  Globenewswire Europe
 
 

VANCOUVER, British Columbia, Jan. 12, 2017 (GLOBE NEWSWIRE) -- Cypress Development Corp. (TSX-V:CYP) (OTCBB:CYDVF) (Frankfurt:C1Z1) ("Cypress" or the "Company") is pleased to announce that the Company has received solubility study assay results from Cypress' 2,700 acre Dean Lithium Brine/Claystone Project located in the heart of the Clayton Valley lithium exploration area of Esmeralda county, Nevada.

Cypress Clayton Valley Lithium Project, Nevada location map:
http://www.cypressdevelopmentcorp.com/i/maps/CYP-Clayton-topo-satalite-small.jpg

The Company's Dean Project is located adjacent to producing lithium brine wells belonging to the Albemarle Silver Peak mine on its west boundary, Pure Energy's resource area on its southwest boundary and Cypress' Glory Project, optioned to Pure Energy, on its southern boundary.

Highlights:

  • Cypress completes solubility studies on 48 previously assayed Dean claystone samples;
  • A deionized water leach process returns 36.15% Li recovery on average;
  • A modified dilute acid leach process returns 94.72% Li recovery on average;
  • Permit application made to BLM, Nevada for a series of drill holes into new Frontera Verda Zone;
  • Cypress anticipates drilling to begin at the end of January.

September and October 2016 surface sampling on the Dean Project has revealed a 2 square kilometer area of strong lithium mineralization up to 3,700 ppm Li (0.82% Li20 equivalent) in calcareous, volcanoclastic, claystones, mudstones and volcanic ash units. The mineralization is essentially identical to the acreage being jointly explored by Cypress and Pure Energy Minerals on Cypress' Glory Project immediately to the south.

Dean sample locations and assay values map:
http://www.cypressdevelopmentcorp.com/i/maps/Dean-Sample-Map-Nov16.jpg

Cypress has now completed solubility studies with 48 previously assayed claystone samples from the Dean property. A modified dilute Aqua Regia (dilute acid) process (ME-MS41W) and a deionized water leach process (ME-MS03) has been carried out by ALS/Chemex lab in Reno, Nevada in order to provide Cypress with further data on the potential feasibility of a large-scale leach extraction method of lithium from the abundant mineralized claystone.

The additional assay procedures recently carried out on the samples by ALS/Chemex from the Dean property clearly show that the lithium in the uplifted exposed lake bed sediments is easily leached by a dilute acid solution and deionized water process.

Dean Lithium Solubility Study Assay Results:

Sample



  *ME-
ICP61
Li ppm

  *ME-
MS41W
Li ppm

  *ME-
MS03
Li ppm

% Li
Recovery
with Dilute
Aqua Regia
% Li
Recovery with
Deionized
Water
Dean-1   1010   1010   105   100.00 %   10.40 %
Dean-2   1770   1720   1100   97.18 %   62.15 %
Dean-3   1480   1500   302   101.35 %   20.41 %
Dean-4   1250   1240   122   99.20 %   9.76 %
Dean-5   930   910   164   97.85 %   17.63 %
Dean-6   1130   1070   124   94.69 %   10.97 %
Dean-7   1560   1520   832   97.44 %   53.33 %
Dean-8   1720   1640   854   95.35 %   49.65 %
Dean-9   2090   1990   1100   95.22 %   52.63 %
Dean-10   830   790   195   95.18 %   23.49 %
Dean-22   790   750   239   94.94 %   30.25 %
Dean-24   2940   2780   1100   94.56 %   37.41 %
Dean-25   950   880   528   92.63 %   55.58 %
Dean-26   640   560   188   87.50 %   29.38 %
Dean-27   900   880   125   97.78 %   13.83 %
Dean-28   1350   1340   247   99.26 %   18.30 %
Dean-29   960   920   190   95.83 %   19.74 %
Dean-30   510   480   103   94.12 %   20.20 %
Dean-31   350   348   111   99.43 %   31.71 %
Dean-32   960   940   70   97.92 %   7.28 %
Dean-33   1440   1420   279   98.61 %   19.38 %
Dean-41   1100   1020   826   92.73 %   75.09 %
Dean-42   1030   970   634   94.17 %   61.55 %
Dean-43   1000   920   237   92.00 %   23.70 %
Dean-44   1890   1840   590   97.35 %   31.22 %
Dean-45   360   298   54   82.78 %   15.11 %
Dean-46   650   590   510   90.77 %   78.46 %
Dean-47   910   850   487   93.41 %   53.52 %
Dean-48   670   550   229   82.09 %   34.18 %
Dean-49   1100   1040   104   94.55 %   9.41 %
Dean-50   1250   1120   865   89.60 %   69.20 %
Dean-51   1020   960   155   94.12 %   15.15 %
Dean-52   1380   1400   1100   101.45 %   79.71 %
Dean-53   1200   1140   978   95.00 %   81.50 %
RKCV-00810   1480   1390   553   93.92 %   37.36 %
RKCV-00811   1320   1270   273   96.21 %   20.68 %
RKCV-00812   1750   1820   1100   104.00 %   62.86 %
RKCV-00813   2130   2040   1100   95.77 %   51.64 %
RKCV-00814   1000   980   298   98.00 %   29.80 %
RKCV-00815   390   369   108.5   94.62 %   27.82 %
RKCV-00816   780   690   280   88.46 %   35.90 %
RKCV-00817   780   730   278   93.59 %   35.64 %
RKCV-00818   1640   1560   790   95.12 %   48.17 %
RKCV-00819   1450   1400   618   96.55 %   42.62 %
RKCV-00820   800   760   279   95.00 %   34.88 %
RKCV-00821   1150   1050   567   91.30 %   49.30 %
RKCV-00822   810   780   157   96.30 %   19.38 %
RKCV-00823   570   500   196   87.72 %   34.39 %
              94.72% AV 36.15% AV

* ME-ICP61 is a 4 acid digestion that will extract lithium from any mineral including silicates
* ME-MS41W is a highly dilute version of Aqua Regia that will dissolve carbonate minerals
* ME-MS03 is a leach method that uses deionized water to extract lithium in the sample
* Li = Lithium Metal
* ppm = parts per million
* AV = Average

Several first order drill targets have been defined on the Dean property that include extensive outcropping of altered green evaporate-rich volcanoclastic claystone / mudstone exposures known as the Frontera Verde Zone. The Frontera Verde Zone covers an area of greater than 2 square kilometers. The average lithium grade of the Frontera Verde Zone is greater than 1500 ppm Li (>0.32% Li2O).

Outcropping lithium-rich mudstones at Dean Project:
http://www.cypressdevelopmentcorp.com/i/maps/Dean-Chip-Channel-Samples-Far-South.jpg

Donald Huston, President Cypress Development, stated, "The results generated from the most recent assays consisting of a highly dilute weak Aqua Regia solution and a deionized water solution on the Dean Project samples has returned very encouraging results relating to the lithium recovery from the claystone that is known to exist on the majority of the Dean Project in Clayton Valley, Nevada. It is evident that the use of differing solutions in the assay procedure, as noted above, that the abundant lithium-rich claystone could be amenable to an extraction methodology that could be cost effective with a very high recovery of lithium content expected from processing. Cypress' management are very encouraged with the progress seen to date and will continue with work on potential lithium extraction methods from the claystone."

All Data compiled by Cypress to date indicates that a readily soluble non-hectorite mineral form of lithium-rich claystone exists at surface over wide areas of Cypress' Glory and Dean Clayton Valley projects.

Cypress has made application to the BLM, Nevada for an area of disturbance Permit to allow for a series of drill holes into the new Frontera Verda Zone on the Dean Project. The Company anticipates mobilizing a drill crew into the Clayton Valley by the end of January.

Quality Control and Quality Assurance:

All samples were submitted to ALS Chemex Labs in Reno, Nevada for analysis using a modified weak Aqua Regia (dilute acid) process (ME-MS41W) and a deionized water leach process (ME-MS03). Blind sample blanks were inserted into the sample sequences at a rate of approximately 1 per 20 samples.

Robert Marvin, PGeo, Exploration Manager for Cypress Development Corp., is the qualified person as defined by National Instrument 43-101 and has approved of the technical information in this release.

About Cypress Development Corp.:

Cypress Development Corp. is a publicly traded lithium and zinc exploration company that continues to acquire and develop potentially viable mineral projects in the State of Nevada, U.S.A.

Cypress is very active in Clayton Valley, Nevada with its team committed to systematically exploring its properties for both a lithium-brine resource and expanding exploration relating to the potential for a lithium resource that exists within the large area of non-hectorite "claystones" discovered at surface that has seen recent high lithium assays recovered from these same "claystones".

Cypress Development Corp. has approx. 33.4 million shares issued and outstanding.

To find out more about Cypress Development Corp. (TSX-V:CYP), visit our website at www.cypressdevelopmentcorp.com.

Cypress Development Corp.

"Don Huston"
                                                           
DONALD C. HUSTON
President

For further information contact myself or:
Don Myers
Director
Cypress Development Corp.
Telephone: 604-687-3376
Toll Free: 800-567-8181
Facsimile: 604-687-3119
Email: info@cypressdevelopmentcorp.com

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE CONTENT OF THIS NEWS RELEASE.

This release includes certain statements that may be deemed to be "forward-looking statements". All statements in this release, other than statements of historical facts, that address events or developments that management of the Company expects, are forward-looking statements. Although management believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance, and actual results or developments may differ materially from those in the forward-looking statements. The Company undertakes no obligation to update these forward-looking statements if management's beliefs, estimates or opinions, or other factors, should change. Factors that could cause actual results to differ materially from those in forward-looking statements, include market prices, exploration and development successes, continued availability of capital and financing, and general economic, market or business conditions. Please see the public filings of the Company at www.sedar.com for further information.

 
 



This announcement is distributed by Nasdaq Corporate Solutions on behalf of Nasdaq Corporate Solutions clients.
The issuer of this announcement warrants that they are solely responsible for the content, accuracy and originality of the information contained therein.
Source: Cypress Development Corp. via Globenewswire

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