TORONTO, ONTARIO -- (Marketwire) -- 02/25/13 -- Editors Note: There is an image associated with this press release.
Braeval Mining Corporation (TSX: BVL) ("Braeval Mining" or the "Company") is pleased to advise that it has today filed technical reports regarding the Guaynopa project in Mexico and Lithocaps project in Peru on www.sedar.com pursuant to National Instrument NI-43-101 - Standards of Disclosure for Mineral Projects. Braeval is also pleased to report information obtained from tunnel sampling and drilling work completed at its Snow Mine project.
Guaynopa Gold Skarn Project
The Guaynopa gold skarn project is located in the State of Chihuahua within the Sierra Madre Occidental precious metals mineral province of northern Mexico. The Corporation has optioned six mining concessions with a total area of 1,110.19 hectares in a region with known historic copper-gold workings.
Gold-bearing skarns at Guaynopa are observed in surface and old workings as tabular bodies attaining widths ranging from 1 to 10 meters and lengths from 2 to 50 meters. The skarn bodies are composed of massive magnetite with garnet and pyroxene. An overprinting hornblende-chlorite-calcite event contains 1% to 5% disseminated mixed sulphides (pyrite greater than chalcopyrite greater than pyrrhotite + galena + sphalerite). The observed assemblage is typical of oxidized magnetite-gold skarns. The magnetite-rich bodies can occur as vertical fault-controlled feeders, as steeply dipping bodies along contact zones with the intrusive rocks, as gently dipping bodies on the bottom or the top of diorite sills, or on the top of the main diorite stock. Many prospects are known to occur along the NW flank of the intrusive stock.
Rock sample analyses indicate that gold mineralization is restricted to the magnetite greater than garnet-pyroxene-amphibole skarn assemblage that contains 1% to 5% disseminated sulphides (pyrite greater than chalcopyrite greater than pyrrhotite), with gold values exceeding 2.5 g/t being accompanied by anomalous Cu-As-Mo-Bi-Ag contents. The best gold showings are located along the northern and western contacts between the diorite stock and its sedimentary host rocks. Other mineral occurrences were observed in veins, cutting the diorite stock at La Victoria prospect that is interpreted as an area with sub-horizontal sill bodies with potential to host high grade manto-type mineralization. Magnetic and IP geophysical surveys were completed on the Guaynopa project.
The geophysical grid consisted of a set of nineteen N/S lines spaced at 100 meters with an average line length of 3km. The magnetic survey totaled 51 line-km and the IP survey totaled 19.8 line-km.
The Morelos and Los Filos gold skarns in Guerrero are interpreted to be analogs for the Guaynopa skarn. Braeval Mining plans to carry out a drill program at Guaynopa to test outcropping and concealed gold skarn targets.
There are no mineral resource estimates at Guaynopa.
The Huancavelica Lithocaps Project is located in the Provinces of Huancavelica and Castrovirreyna, Department of Huancavelica, Republic of Peru. The latitude and longitude for the Arcopunco Project is 13 degrees 2' 18"S, 75 degrees 2' 19"W, and the Terciopelo Project is at 12 degrees 56' 4"S, 75 degrees 2' 26"W. Altitudes in the project are between 3,600 m and 5,298 m above mean sea level. The project is about 245 km south east of Lima. Braeval Mining owns and has optioned 35 mining concessions and applications with a total area of 23,290 hectares. The projects are in the Huachocolpa mining district which has historical and active mining for silver, lead, zinc and copper.
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