Dia Bras Exploration Inc.

Dia Bras Exploration Inc.

July 14, 2010 14:30 ET

Dia Bras Reports Significant Copper-Zinc Mineralization Near its New Mill Site

MONTREAL, QUEBEC--(Marketwire - July 14, 2010) - Dia Bras Exploration Inc. (TSX VENTURE:DIB) is pleased to report that a broad area of copper-zinc mineralized skarn, known as "Los Americanos North", is located only one kilometre from its new Piedras Verdes Mill site, which is under construction and scheduled for commissioning in early 2011. By road, the area is only three kilometres from the mill site.

"This is an exciting development for Dia Bras because it significantly expands the area where we can discover and develop mineable deposits that will provide feed for our new mill," stated Daniel Tellechea, President & CEO. "As we continue exploration outside the immediate area of the Bolivar Mine, we are finding more and more locations that have the potential to become new mines."

Sampling and mapping by the Company's geologists has defined two areas of skarn-altered andesite, the largest of which is a 1,000 x 200-300 m area with potentially-economic copper-zinc mineralization. Another area to the north is believed to be less eroded and therefore has less exposure of mineralized rock (see attached location map: http://www.diabras.com/en/newscenter/2010/Americanos-Flat_Sampling_Location.JPG). This setting is identical to that at the Bolivar Mine where metasediments underlying andesite host high-grade copper-zinc mineralization. The metasediments underlying the Los Americanos andesite are considered to be high-priority drill targets. This area will be drilled as part of the Company's continuing regional exploration program.

Mapping and sampling to the south along this skarn trend (Los Americanos South) is continuing, focused on similar mineralization that has been discovered in that area, which indicates significant potential for expansion of the Los Americanos trend of copper-zinc mineralization.

The table below shows the results of selected samples from the two areas (see attached sample location map: http://www.diabras.com/en/newscenter/2010/Americanos-Location_Map.JPG).

Table 1: Selected channel samples from the Los Americanos area

Sample Width (m) Type Cu% Zn% Pb% Au g/t Ag g/t
758324 5.0 Channel 3.64 11.35 0.05 0.029 36.0
758325 3.0 Channel 0.09 1.23 0.01 0.072 2.5
758326 4.0 Channel 1.42 5.89 0.02 0.051 23.5
758327 6.0 Channel 0.43 0.17 0.02 0.077 8.6
758371 5.0 Channel 0.00 0.01 0.00 5.890 0.1
758380 10.0 Channel 0.24 0.21 0.01 0.175 10.9
758384 18.0 Channel 0.60 0.24 0.07 0.008 24.7
758386 21.0 Channel 0.23 0.22 0.03 0.009 2.2
758387 10.0 Channel 0.03 1.69 2.30 0.154 161.0
758390 2.5 Channel 0.76 0.93 0.37 0.020 31.1
758391 15.0 Channel 0.16 0.39 0.14 0.003 4.6
758394 5.0 Channel 0.77 2.32 0.66 0.048 69.4

Method of Analysis

Samples were prepared at the ALS Chemex lab facility in Chihuahua, Mexico, and analyzed by ICP and AA methods at their facilities in Vancouver, Canada. Diamond drill samples sent for analysis consisted of half NQ-size and BQ-size diamond core split on site, prepared by the ALS Chemex sample preparation laboratory in Chihuahua, Mexico, and assayed for Au by 50 g fire assay with AA finish, and for Ag by AA on 50 g split sample at the ALS Chemex North Vancouver Laboratory. Assays for Pb, Zn and Cu are done by Induction Coupled Plasma (ICP) at ALS Chemex.

Quality Control

The quality assurance-quality control (QA-QC) of Dia Bras has been described in detail in both RPA's NI 43-101 reports of December 2006 at Cusi and October 2005 for Bolivar.

The technical content of this news release has been approved by Thomas L. Robyn, Ph.D., CPG, RPG, a Director of Dia Bras and a Qualified Person as defined in NI 43-101.

About Dia Bras

Dia Bras is a Canadian exploration mining company focused on precious and base metals in Chihuahua State and other areas of northern Mexico. The Company is committed to developing and adding value to its most advanced assets – the Bolivar Property and the Cusi Property. The Company's shares trade on the TSX Venture Exchange under the symbol "DIB". 

For further information on Dia Bras Exploration Inc. visit www.diabras.com

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

Forward-looking Statements

Except for statements of historical fact all statements in this news release without limitation regarding new projects, acquisitions, future plans and objectives are forward-looking statements which involve risks and uncertainties. There can be no assurance that such statements will prove to be accurate; actual results and future events could differ materially from those anticipated in such statements.

Contact Information

  • Dia Bras Exploration Inc.
    Daniel Tellechea
    President & CEO
    Dia Bras Exploration Inc.
    Karl J. Boltz
    Vice President, Corporate Development