Pediment Exploration
Mexico: La Colorada, Sonora - San Antonio project, Baja California Sur.
Message: Reports Metallurgical Testing at Los Planes With Over 80% Gold Recovery
| April 20, 2009 | |
| Pediment Reports Metallurgical Testing at Los Planes With Over 80% Gold Recovery | |
|
VANCOUVER, BRITISH COLUMBIA--(Marketwire - April 20, 2009) - Pediment Gold Corp. (TSX:PEZ)(OTCBB:PEZGF) (the "Company") is pleased to report on gold recovery results from column leach testing of oxidized material ("oxide") from the Los Planes discovery within the San Antonio gold project in Baja California Sur. The column leach tests were performed on gold mineralized oxide material retained from portions of eight HQ core drill holes that were shipped as a composite sample to Metcon Research Laboratories located in Tucson Arizona. The results are based on a 111 day leach cycle, from a composite sample of HQ drill core crushed to two sizes. The coarser material of minus 37.5 mm (1.5 inches) returned 75% gold recovery, and the sample crushed to 9.5 mm (3/8 inch) returned 81% gold recovery. --------------------------------------------------------------------------
Crush Calculated
Column Gold Size Head Cyanide Lime
Leach Test Recovery 80% Passing Grade, Gold Consumption Consumption
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CL-01 81% 3/8 inch 0.87 g/t 0.06 Kg/t 1.8 Kg/t
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CL-02 75% 1-1/2 inch 0.81 g/t 0.06 Kg/t 1.6 Kg/t
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http://www.pedimentgold.com/i/pdf/Me... Additional column leach testing of material from the mixed oxide-sulphide sample of the Los Planes mineral deposit is nearing completion. Column leach testing of material from the sulphide zone, which began more recently, is about mid-way through the leach trial. Results from both of these additional tests will be reported once completed. The company views the results from the oxide testing as very favourable and continues to work towards a planned 100,000 tonne bulk leach test later this year. Pediment is also pleased to announce that it will commence a second phase work program at the La Colorada site, located 40 kilometres southeast of Hermosillo. The program will include drilling to determine open pit mineralization ready for open pit mining, as well as to continue exploring deeper high-grade targets to follow-up on drill results reported by Pediment on February 17, 2009. The Company will release additional details of this program in the coming weeks. In June of 2008 the Company released the results of an initial NI 43-101 compliant resource study of the San Antonio project which is based on drill results completed prior to the end of 2007. This study calculated an Inferred Mineral Resource of 30.58 million tonnes averaging 1.32 g/t gold at Los Planes and of 5.62 million tonnes averaging 0.83 g/t gold at Las Colinas (for an aggregate total of 1.45 million gold ounces) both at a 0.4 g/t cut-off grade. All results of later drilling between early to mid 2008 of approximately 16,500 meters on both mineral deposits will be incorporated in future resource studies. Gary Freeman, President of Pediment Gold Corp., states, "The Company has been very diligently working with the Ejido at San Antonio to finalize an agreement allowing long term surface access rights including test mining and production related activities. The agreement is expected to be concluded soon. The Company has now assembled an experienced pre-development mining team to conclude all relevant permitting issues. Pediment has also committed to a number of work and expansion drill programs for this year, at both La Colorada and San Antonio. Pediment is also pleased to report that is has devoted additional time to evaluating numerous projects that have become available in the current depressed market environment." Melvin Herdrick, VP Exploration and Director, is a Qualified Person as defined by NI 43-101 and has reviewed and approved this release. Gary Freeman, President and CEO PEDIMENT GOLD CORP. |
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