Canamex Launches Column Leach Tests at the Bruners Gold-Silver Project in Nye County, Nevada
09.05.2012/6/XNUMX - Canamex Resources Corp. (TSX-V: CSQ) (OTCQX: CNMXF) (FSE: CXXNUMX) is pleased to announce that column leach testing has commenced on an underground bulk sample from the Bruner gold-silver project in Nye County, Nevada.
Kappes Cassidy & Associates receives bulk rehearsal
Approximately 650 pounds (1500 kilograms) of sample material (-6 inches) were collected from the upper adit of the Bruner gold-silver project and presented to Kappes Cassidy & Associates. This world famous metallurgical test facility specializes in cyanide leach (heap leach) tests. The upper adit is an old mining section that lies within the historical resource zone and is located in a temporary shaft constructed for the historical resources. The bulk sampling was based on previous channel sampling from the upper adit where the average ore grade is projected to be 0,86 g / t (0,025 ounces / ton) Au and 10,3 g / t (0,3 ounces / ton) Ag lies. This is roughly the average grade of ore found in the Historic Resource Zone as calculated by Miramar Mining Corp in 1993. The basis for this was provided by the data from various companies (including Newmont Mining, Miramar Mining, Viceroy Gold Corp and Kennecott Mineral Exploration) that had carried out drilling up to this point in time.
The aim of the current tests is to determine the gold and silver extraction rate using cyanide leaching. The material is subdivided into two particle sizes, each of which simulates a two-stage or three-stage comminution process. Furthermore, the corresponding data for the consumption of the reagents used (cyanide, lime and cement) and the comminution and abrasion indices must be determined. All of this data plays a key role in the economic processing of historical resources using heap leaching. The test results should provide the company management with a decision-making tool to estimate the extent to which the definition drilling in historical resources should be carried out in accordance with the provisions of NI 43-101. In addition, they should be useful in choosing a reasonable cutoff grade for creating a NI43 101 compliant resource estimate. In addition, it will continue to explore the peripheral target areas, some of which, such as the Penelas East target area, have interesting sections that suggest exploration for additional resources on the property. 2011 were drilled three holes in the target area Penelas East. Two of the three holes drilled in the Penelas East vein system intersected a segment above 10 g / t (more than 0,292 ounces / ton). Key achievements included Loch B-1115, which trawled a 400 foot below the surface and 400 foot south of the historic holes for a vein. The vein intersection has a true thickness of 4,2 meters (13,7 feet) and an average ore grade of 12,97 grams gold / ton (g / t) (0,379 ounces / ton) and 146 g silver / t (4,25 ounces / ton). It also includes an 1,4 meter wide section with 24,97 g gold / t (0,729 ounces / ton) and 151 g silver / t (4,41 ounces / ton).
Two column leach tests are performed in which material with a grain size of -2 Inches or -3 / 4 Inches is run in a closed circuit for at least 90 days. This sample, representative of the core of the historical resources, is designed to determine gold and silver recoveries using cyanide leaching and reagent consumption. In addition, a sliver of the bulk sample is ground to -200 screen size, dipped into a cyanide solution, and then bottle-rolled to determine the maximum precious metal recovery rate from that sample. A comparison of the results from the leaching test and the bottle-roll method will show whether further comminution of the feed material is necessary or justified.
Sieve analyzes are also carried out to determine the gold content of different grain fractions and to determine if screening the sample material would have economic benefits for the project.
Greg Hahn is a Certified Professional Geologist (# 7122) and, as a Qualified Person, has prepared and reviewed this news release in accordance with the NI 43 101 Reporting Guidelines.
FOR THE BOARD
SIGNATURE: Gregory A. Hahn
Gregory A. Hahn, Chairman & CEO
Contact:
Robert Kramer (604) 718-2800 (DW 311)
Renmark Financial Communications Inc.
Erica Lomonaco: ppgad@pucrs.br
Barbara Komorowski: ppgad@pucrs.br
Phone: (514) 939-3989 or (416) 644-2020 www.renmarkfinancial.com
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Forward-looking statements:
This release contains forward-looking statements about future events and the future business of Canamex. These statements are based on current expectations, estimates, projections and forecasts relating to the business in which Canamex operates and the assumptions and assumptions of Canamex's management. Terms such as "expected", "goals", "intended", "plans", "believes", "endeavors", "estimates", "continues", "may", modifications of such terms and similar expressions are intended to indicate forward-looking statements , In addition, any statements that relate to forecasts of Canamex future financial results, Canamex's anticipated growth and business potential, and descriptions of future events or circumstances are forward-looking statements. Readers are cautioned that these forward-looking statements are only predictions, involve risks and uncertainties, and are based on assumptions that are difficult to predict. This includes statements that are mentioned elsewhere in this release or included in the documents that Canamex publishes on www.sedar.com. For this reason, actual results may differ materially and in a negative way from those expressed in the forward-looking statements. Canamex is under no circumstances obligated to correct or update any forward-looking statements.
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