Quick search
Dia Bras Exploration Inc. is pleased to announce the richest Upper Skarn intersection in the El Gallo area and provide an update on the 2008 exploration program at its Bolivar Project as well as new drilling results (Click here to view the Table Recent Assay Results).
In the El Gallo area, hole DB08B240 intersected 7.5 metres of 4.53% Cu, 3.75 g/t Au and 383 g/t Ag, including a 4-metre section averaging 6.1% Cu, 6.78 g/t Au and 644 g/t Ag that represents the highest precious metal content intersected to date in the Upper Skarn of El Gallo.
“Hole 240 contains the richest drill intersection in the El Gallo area,” says Dr. Thomas L. Robyn, Chairman of Dia Bras. “This drill hole is situated some 75 metres SE of hole DB07B225 that intersected the widest Lower Skarn horizon and indicated potential thickening and enrichment of the Lower Skarn horizon towards the SE. These results are particularly exciting because this new zone of high-grade mineralization in the Upper Skarn is located 500 metres SE of our active pilot-mining area where we are mining high grades of zinc and copper. Our success at La Narizona, which is another 1,500 metres SE of El Gallo, raises the exploration potential of this trend. The area of prospective ground is being increased with each drill hole.”
(Click here to view the map of recent drill hol locations of the El Gallo Area).
Further, hole DB08B242 (a 25-metre offset of hole 240) intersected a high grade copper intersection in the Upper Skarn averaging 3.1% Cu, 0.38 g/t Au and 57 g/t Ag over 18 metres core length (15.6 metres true width), including a 9.0 metre section core length (7.8 metres true width) that averages 4.46% Cu, 0.60 g/t Au and 75 g/t Ag. (Click here to view the section of drill holes 240 and 242).
Results from these holes indicate to the Company’s geologists that drilling is approaching an important mineralized area because both the Upper and Lower Skarns show an increase in grade and thickness. Moreover, the appearance of abundant bornite (Click here to view the photo of the drill core 240) as well as low zinc and elevated gold contents in the Upper Skarn indicate that this mineralization represents a higher-temperature zone in the vicinity of a significant feeder conduit for mineralizing fluids. Dia Bras is drilling on a 25 x 50 metre grid to determine the lateral extent of this high-grade copper-gold zone.
Bolivar Mine Area (Alta Ley)
Surface and underground diamond core drilling at Bolivar Alta Ley are aimed at continuing to define the Rosario and Fernandez mineralized trends while also identifying potential new zones of mineralization, as well as further delineating the Selena, Titanic and Rosario massive sulfide lenses.
Hole DB07228 intersected 7.6% Cu and 2.05% Zn over 2.30 metres core length (1.6 metres true width) in the Upper Skarn horizon of the Selena lens and a further 0.47% Cu and 4.85% Zn over 4.90 metres core length (3.5 metres true width).
Some of the best intersections from the underground drilling, which is continuing to define the high-grade Upper Skarn lenses, include holes DB07BM122 (3.35 metres of 8.38% Cu and 4.03% Zn), DB07BM132 (3.8 metres of 1.12% Cu and 11.1% Zn), DB08BM142 (13.6 metres of 2.81% Cu and 8.35% Zn), all drilled in the Selena lens, and hole DB07BM129 (1.75 metre of 3.16% Cu and 5.51% Zn) in the Titanic zone.
El Gallo Area
Drilling in the El Gallo area continues to intersect widespread disseminated and stringer copper mineralization in the magnetite-bearing Lower Skarn and high-grade zinc in the Upper Skarn.
Some of the best intersections, apart from holes DB08B240 and 242 mentioned earlier, include holes DB08B234 that intersected two zones of Lower Skarn-type mineralisation, in which a number of copper-bearing intersections were encountered, including a 21-metre section core length (16.1 metre estimated true width) averaging 2.8% Cu, 0.1% Pb, 41 g/t Ag and 0.1 g/t Au, including a 9.6-metre section that averaged 3.9% Cu and 77 g/t Ag, hole DB08B223 that intersected 8.20 metres of 1.3% Cu and 26 g/t Ag, and hole DB08B238, which intersected 3.57% Cu over 6.1 metres.
La Montura Area
The best intersection in this area was in hole DB08B235 which intersected 9.38% Zn over 16.70 metres in Upper Skarn-type mineralisation at La Narizona, including a higher grade section averaging 17.04% Zn over 6.90 metres. This new intersection indicates that La Narizona is a block of mineralisation over at least 100 X 50 X 20 metres, although it is still open to the NE and SE.
2008 Drill Program
In the first quarter of 2008, 6,172 metres of core diamond drilling have been completed at Bolivar (surface and underground).
Month |
January |
February |
March |
Total |
Underground |
534 |
642 |
630 |
1807 |
Surface |
1120 |
1677 |
1569 |
4365 |
Total |
1654 |
2319 |
2199 |
6172 |
Method of analysis
Samples were prepared at the 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 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 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 at Cusi and October 2005 for Bolivar.
The technical content of this news release has been approved by Dr. Thomas L. Robyn, Chairman of Dia Bras, a Qualified Person as defined in NI43-101.
About Dia Bras
Dia Bras is a Canadian mining and exploration company focused on precious and base metals in the Mexico. The Company is committed to developing and adding value to its assets – the Bolivar copper-zinc project, the Cusi silver mining camp in the renowned Sierra Madre mining district of northern Mexico and La Enganosa copper-silver in the State of Jalisco. The Company trades on the TSX Venture Exchange under the symbol “DIB”.
About Dia Bras
Dia Bras is a Canadian mining and exploration company focused on precious and base metals in the Mexico. The Company is committed to developing and adding value to its assets – the Bolivar copper-zinc project, the Cusi silver mining camp in the renowned Sierra Madre mining district of Northern Mexico and La Enganosa copper-silver in the State of Jalisco. The Company trades on the TSX Venture Exchange under the symbol “DIB”.
For further information on Dia Bras contact:
| Daniel Tellechea President & CEO Dia Bras Exploration (514) 393-8875 |
Thomas L. Robyn Executive Chairman Dia Bras Exploration (514) 393-8875 |
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 that 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.
The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this press release.