Stock Information

TSX-V: DIB 0.20  0.00

Base metal prices

Precious metal prices

Subscribe to our Updates

Name

E-mail

Quick search

About Dia Bras -    Officers -    Directors -    Why Mexico -    Social Involvement Our Projects -    Production Projects -    Exploration Projects Investor Center -    Capital structure -    Presentations & Webcasts -    Upcoming Events -    Financials -    Analyst Coverage -    FAQ -    E-mail Updates -    Contact Us Newscenter -    Press Releases -    Media Educational -    Gold -    Copper Porphyry System -    Silver -    Zinc -    Lead -    Copper

Dia Bras Exploration Inc. (TSX-V: DIB)is pleased to report that it has received high grade gold assays from surface channel samples collected in its initial exploration program on the La Cascada prospect of its Bolivar property. La Cascada lies only 2.5 km south of Cieneguita, where Dia Bras has its camp, offices and maintenance facilities for its Bolivar mine operations.
Commenting on the results, Daniel Tellechea, President of Dia Bras, stated, “We are encouraged by the high grade results discovered at surface outcrops that are as high as 15 grams per tonne over a 3 metre channel. This prospect is near our existing infrastructure and lies within the prolific Sierra Madre gold-silver belt of northwestern Mexico that hosts several multi-million ounce gold deposits.”
Bolivar has never been explored for gold by modern methods, yet the property is surrounded by several historical gold producing mines and currently well known deposits, such as Goldcorp’s El Sauzal mine (1.2 million ounces of gold produced), located 12 km southeast of the prospect and Coeur’s Palmarejo deposit (1.1 million ounces of gold plus 88 million ounces of silver), located 50 km to the northwest (see attached Regional Map).
Geology
The La Cascada prospect is underlain by an extensive and thick sequence of pyroclastic breccias and agglomerates, including lapilli tuff, landslide mega-breccias, and tuff breccias mixed with andesitic flows, all derived from andesitic volcanism.  The basal andesitic flow contains volcanic blocks and bombs, lapilli and ash tuff.
Detailed geologic mapping and sampling are in progress with the objective of identifying drill sites.
Mineralization
From the La Cascada central zone towards the north – northeast, gold anomalies occur along contact zones of discordant veins and veinlets of limonite, sponge limonite and hematite with pervasive quartz and fine-medium pyrite (see attached La Cascada Prospect Au Values and Anomalies maps).  In addition, a stratiform zone is hosted by intensely argillized, pyroclastic breccia and infill tuff breccia bounded by interlayered andesitic flows. 
From the central zone towards the southwest is a topographically higher area where zones of veining with disseminated sulphides (galena, sphalerite, chalcopyrite) occur.
Extensive argillic alteration (kaolinite – quartz – hematite – limonite) occurs over a 100 hectare area with pervasive quartz, fine-medium pyrite and partial silicification of the matrix. 
To date, two possible gold-related assemblages have been identified:

1. Quartz – Pyrite – Sericite – Alunite? – Dickite?: Mainly in altered pyroclastic breccia zones and infill breccia tuffs forming a stratabound altered unit cut by anastomosed veins/veinlets with sponge limonite, limonite, hematite and quartz.
2. Sponge Limonite – Jarosite – Hematite – Goethite:  Mainly forming halos in fractures or fillings forming veins and veinlets crossing altered host rocks.
   

This is the first systematic channel sampling on the prospect that covers an area of 2,000 by 3,000 metres.  Table 1 below shows selected results from sampling at La Cascada.  Complete results are given in the accompanying maps that show sample locations and alteration patterns.
Table 1. Channel Samples Collected At La Cascada Prospect

PROSPECT	SAMPLE	WIDTH	DESCRIPTION	Au ppm	Ag ppm	Cu ppm	Pb ppm	Zn ppm
Cascada	229205	1.1	Quartz veining and breccias, jarosite, pyrite, sphalerite	15.8	1250.0	1770	6330	8280
Cascada	229213	3.2	Andesitic breccia, limonite, quartz and pervasive pyrite	5.24	365.0	1180	4420	192
Cascada	229214	1.4	Andesitic breccia with limonite in boxworks	3.73	29.5	333	682	47
Cascada	229221	2.0	Limonitic breccia (jarositic), fine pyrite, some malachite	0.55	223.0	5790	18600	5990
Cascada	229223	2.0	Quartz breccia, galena, sphalerite, pervasive pyrite	6.61	119.0	7560	116500	196500
Cascada	229228	0.8	Quartz breccia, veinlets with pyrite, galena, sphalerite	0.64	123.0	1005	16300	9020
Cascada	229283	2.0	Semi-massive galena in andesitic breccia	1.57	80.9	4040	105500	73200
Cascada	229284	2.0	Quartz breccia with quartz, pyrite, galena	1.70	11.4	4430	7330	12000
Cascada	229351	7.0	Quartz vein fine-grained stockwork and hematized breccia	0.70	10.6	320	1290	3730
Cascada	229359	2.5	Quartz veining, weakly argillized, disseminated pyrite, quartz	0.16	193.0	344	632	310
Cascada	229360	3.2	Quartz veining, weakly argillized, disseminated pyrite, quartz	0.06	243.0	109	542	712
Cascada	229361	2.0	Argillic alteration in porphyritic andesite,  fine pyrite, quartz	0.00	1.0	28	270	164
Cascada	229362	2.0	Argillic alteration in andesite, quartz-sericite, pyrite	0.00	0.8	48	17	298
Cascada	229363	2.5	Argillic alteration in andesite, quartz-sericite, pyrite	0.01	0.5	30	258	339
Cascada	229369	1.3	Lens composed of limonite and hematite in veinlets	0.55	25.8	149	1320	1315
Cascada	229370	1.7	Lens composed of hematite - limonite	0.62	25.1	144	1300	1225

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 43-101 reports of December, 2006, for 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, a Qualified Person as defined in NI43-101.
About Dia Bras
Dia Bras is a Canadian exploration mining corporation focused on precious and base metals in the State of Chihuahua and other areas of northern Mexico. The Corporation is committed to developing and adding value to its most advanced assets – the Bolivar copper-zinc project and the Cusi silver mining camp. The Corporation trades on the TSX Venture Exchange under the symbol “DIB”. 
For further information on Dia Bras visit www.diabras.com or contact:

Daniel Tellechea, President & CEO Dia Bras Exploration Inc. (514) 393-8875 ext. 241

Karl J. Boltz Vice President, Corporate Development Dia Bras Exploration Inc. 1 (866) 493-9646

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:
Dia Bras has taken all reasonable care in producing and publishing information contained in this news release.  Material in this news release may still contain technical inaccuracies, omissions or typographical errors, for which the Corporation assumes no responsibility.  This news release may include certain "forward-looking statements" including but not limited to comments regarding predictions and projections.  All statements, other than statements of historical fact, included in this news release, including, without limitation, statements regarding potential mineralization, exploration results, and future plans and objectives of the Corporation, are forward-looking statements that involve various risks and uncertainties.  There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Corporation's expectations are disclosed in documents filed from time to time with the regulatory authorities.