MONTREAL, QUEBEC, May 04, 2010 (MARKETWIRE via COMTEX News Network) — Dia Bras Exploration Inc. (TSX VENTURE: DIB) (the Company) is pleased to report that it has contracted Quantec International Project Services Ltd. (QIPS) to conduct Induced Polarization (IP) geophysical surveys on its 21,552 hectare Bolivar Property (Figure 1 below) in Chihuahua, Mexico.


The IP surveys will examine two areas and have two major objectives:


La Cascada Gold Prospect


The objective at the La Cascada is to detect and map potential high chargeability and resistivity zones that could be related to gold mineralization discovered by previous surface sampling. These geophysical characteristics are typical of a high-sulphidation gold system, and anomalies detected by the survey will be immediate drill targets. The survey is oriented over zones that contain up to 7 g/t gold in highly silicified outcrops. Five lines of 1.2 km each will be surveyed, for a total of 6 line-km.


Bolivar Mine and Environs


The objective at the Bolivar Mine area is to detect and map high-chargeability and low-resistivity zones that may be related to skarn mineralization at and near the Banda Fault. High-grade skarn mineralization at Bolivar is consistently associated with high chalcopyrite contents, which range up to 20-25% in the higher-grade mineralized bodies. The geologic concept behind the design of the survey in this area is that mineralizing fluids moving along the Banda Fault could have formed large skarn or replacement deposits where the highly receptive Upper and Lower Skarn carbonate beds are cut by the fault. Any chargeable body detected by the survey will be an immediate drill target. Nine lines of 1.5 km each will be surveyed, for a total of 13.5 line-km.


The Survey


The survey will utilize a Titan-24 IP Survey, which is a proprietary, multi-channel, multi-parameter, Distributed Acquisition System (DAS), that records D.C. Resistivity and Induced Polarization data. It uses a large, multi-channel, fixed receiver array in combination with a wide variety of possible current injection arrays and highly accurate 24-bit sampling to achieve great depth of penetration, data quality and detectibility. First used in mineral exploration applications in 2000, the Titan-24 IP Survey has been applied to exploration for a wide variety of commodies, including gold, copper, base metals, diamonds, and more. In addition to its field acquisition system, the Titan-24 IP is complemented by its full-waveform, digital signal processing platform and its 2D-3D forward modeling and inversion capability. The Titan 24 IP Survey planned for the Bolivar Project will enable Dia Bras to detect anomalies potentially related to mineralization and proximal alteration at depths of up to 500 metres. The survey is planned for June-July. Line cutting is in progress and construction of a road to the La Cascada target area will begin after permits have been obtained.


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., RPG, CPG and Director of Dia Bras, a Qualified Person as defined in NI 43-101.


About Dia Bras


Dia Bras Exploration Inc. is a Canadian exploration mining company focused on precious and base metals in the State of Chihuahua and other areas of northern Mexico. The Company is committed to developing and adding value to its most advanced assets – the Bolivar copper-zinc project and the Cusi silver mining camp. The Company’s shares trade on the TSX Venture Exchange under the symbol “DIB”.


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. 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.




Dia Bras Exploration Inc.

Daniel Tellechea

President & CEO

514-393-8875 ext. 241


Dia Bras Exploration Inc.

Karl J. Boltz

Vice President, Corporate Development



SOURCE: Dia Bras Exploration Inc.

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