Dia Bras Identifies Gold-Anomalous Ridges at the La Verde Gold Prospect at Its Batopilas Property
TORONTO, ONTARIO -- (Marketwire) -- 10/21/11 -- Dia Bras Exploration Inc. (TSX VENTURE: DIB) is pleased to report additional assay results from the stream sediment sampling program conducted at the La Verde high-sulfidation gold prospect of its Batopilas property in Chihuahua State, Mexico. These results have focused the Company's attention on certain gold-anomalous ridges that will be explored after the rainy season in the fourth quarter of 2011. The Batopilas property lies within the prolific Sierra Madre gold belt.
The La Verde area of the Batopilas property is located 35 km southeast of the Company's Bolivar property and 23 km to the east of Goldcorp's El Sauzal gold mine and within one of the most important gold mining belts in the Sierra Madre in Northern Mexico. Within the La Verde area, alteration related to a high-sulfidation gold system occurs over an area of more than 25 km2 and it is within this wide area of alteration that the Company is focusing its gold exploration efforts. There is also a northwest trend to quartz veins, veinlets and stockworks, which hosts the historical Tres Hermanos mine. This mine is not on Dia Bras property but the extension of the trend is. According to the Mexican Geological Service, Tres Hermanos produced ore at an average grade of 16.35 g/t gold from 1916-1936, with an estimated production of about 200,000 ounces.
Dia Bras is exploring its 100%-owned Batopilas property that covers 45,319 and also includes the Corralitos intrusion-hosted Mo-Cu deposit and the Satevo epithermal gold mineralization.
New results from stream sediment samples show gold-in-stream sediments up to 660 ppb, a very anomalous amount. Other anomalous metals include copper (969 ppm), lead (207 ppm) and zinc (346 ppm).
Complete results are given in the accompanying maps (http://www.diabras.com/files/media/LA%20VERDE_201108.pdf)that show sample locations and alteration patterns and in the accompanying EXCEL spreadsheet (http://www.diabras.com/files/media/La%20Verde%20Base%20datos.xlsx). Figure 1 is a regional map showing La Verde's location relative to other mineral deposits. Figure 2 shows the overall La Verde area and the area of gold-anomalous ridges defined to date as well as the location of the Tres Hermanos mine, a historic gold producer at a grade of 16.35 g/t gold from 1916-1936 (Servicio Geologico Mexicano - SGM).
Results of regional program of mapping and sampling yielded:
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Sample # Sample Width, m Au, g/t Ag, g/t Cu, ppm Pb, ppm Zn, ppm As, ppm
Type
0009 Rock chip 1.3 4.1 41.2 7,510 942 3,400 29
0012 Rock chip 1.2 1.4 49.0 5,060 20,400 7,520 68
0020 Rock chip 1.6 1.9 58.7 25,700 5,090 22,200 35
0052 Rock chip 1.8 9.0 10.0 0.01 2 2 0.5
0359 Rock chip 2.5 1.0 9.4 459 1,230 1,100 70
0378 Rock chip 0.8 4.3 7.3 4,060 203 909 43
0388 Rock chip 1.0 1.1 6.9 13,400 32 232 14
0395 Rock chip 1.0 1.1 6.9 2 14 less 20
than 10
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Dia Bras has conducted two stream-sediment sampling programs in order to define major gold anomalies in La Verde. The latest program included collection of an additional 88 sediment samples in the La Verde area, bringing the total to date to 135 samples. The table below shows results from selected samples collected in the latest program:
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SAMPLE TYPE Au ppm Ag ppm Cu ppm Pb ppm Zn ppm As ppm
345317 Sediment 0.14 0.3 55 20 5 3
345318 Sediment 0.43 0.4 54 21 6 5
345319 Sediment 0.30 0.4 48 20 5 7
345320 Sediment 0.46 0.3 49 34 7 6
345321 Sediment 0.15 0.5 70 36 8 6
345322 Sediment 0.25 0.4 72 25 6 7
345323 Sediment 0.17 0.4 78 26 9 3
345324 Sediment 0.07 0.3 24 17 5 9
345325 Sediment 0.07 0.4 51 47 12 30
345326 Sediment 0.52 0.5 48 41 12 20
345327 Sediment 0.05 0.4 115 91 96 12
345328 Sediment 0.14 0.4 105 103 110 15
345332 Sediment 0.41 0.8 87 119 121 14
345333 Sediment 0.39 0.6 54 132 106 23
345334 Sediment 0.23 0.5 88 73 118 17
345335 Sediment 0.08 1.5 88 86 159 22
345347 Sediment 0.06 0.5 151 359 532 16
345348 Sediment 0.58 0.2 84 31 9 6
345349 Sediment 0.18 0.2 30 16 30 24
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During late 2011, Dia Bras will continue sampling of streams in the La Verde area and will initiate detailed geologic mapping and rock chip sampling of the gold anomalous ridges with the intent that initial drilling of the area can be done during 2012.
Daniel Tellechea, President and CEO of Dia Bras Exploration, Inc. stated 'The La Verde area has the potential to host a significant gold deposit and given the size of the altered area we do not intend to rush into a drilling program. When our geologists are convinced we have identified the highest priority areas, then we will commence drilling. This very attractive area warrants a serious and in-depth exploration effort.'
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. Samples sent for analysis were 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) program employed by 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 pursuing the development and exploration of its most advanced assets - the Bolivar Property (copper-zinc-silver) and the Cusi Property (silver) and is exploring several precious metal targets such as La Cascada project at the Bolivar Property, the Las Coloradas project at Melchor Ocampo (Zacatecas State), the Bacerac Property (Sonora State) and the La Verde project at the Batopilas Property (Chihuahua State). The Corporation's shares trade on the TSX Venture Exchange under the symbol 'DIB'.
For further information on Dia Bras Exploration Inc. visit http://www.diabras.com
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.
Contacts:
Daniel Tellechea
President & CEO
Dia Bras Exploration Inc.
1 (866) 493-9646 Ext 304
Karl J. Boltz
Vice President, Corporate Development
Dia Bras Exploration Inc.
1 (866) 493-9646 Ext 242