Dia Bras Drills 9.3 Metres of 1.8% Cu and 2.5 Meters of 18% Zn at El Gallo at its Bolivar PropertyMarketwire
Dia Bras Exploration Inc.
October 16, 2007 - 08:30:50 AM
Dia Bras Drills 9.3 Metres of 1.8% Cu and 2.5 Meters of 18% Zn at El Gallo at
its Bolivar Property
MONTREAL, QUEBEC--(Marketwire - Oct. 16, 2007) - Dia Bras Exploration Inc.
(TSX VENTURE:DIB) is pleased to announce drill intercepts in the El Gallo area
from its ongoing surface exploration drilling program at the Bolivar property
in the State of Chihuahua, Mexico.
Drilling in the El Gallo area continues to intersect widespread disseminated
copper mineralization in the magnetite-bearing Lower Skarn and high grade zinc
in the Upper Skarn. The drill holes reported here postdate the resources
calculation (press release of September 25th, 2007). On-going exploration by
Dia Bras in the El Gallo area continues to extend the mineralization in both
Lower and Upper Skarn horizons as well as in other areas of the property,
which encompass some 75 km2. The program at El Gallo is expanding and better
defining Inferred Resources in this area. Dia Bras intends to update its
resource base as drilling progresses.
"The tabular and predictable nature of the Lower Skarn allows us to do in-fill
and step-out drilling with a high degree of success and we will continue to
define the volume potential of this mineralization over the next few months",
says Dr. Thomas Robyn, Executive Chairman. "We are also very excited about the
extent of the high grade zinc mineralization in the Upper Skarn at El Gallo"
Results
Results
Drill hole DB07B201 was drilled on section 9350, vertically. It intersected
numerous bands of disseminated Cu-Zn mineralization, with best assays of 1.0%
Cu over 9.0 metres in the Lower Skarn.
Drill hole DB07B202, drilled on section 9325 at an azimuth of 225 degrees and
a dip of -68 degrees intersected high grade Zn mineralization, 3.3m at 6.9% Zn
and 3m at 12.4 % Zn, in the Upper Skarn and a 12.5 metre section of 1.3% Cu in
the Lower Skarn.
Drill Hole DB07B205 was drilled on section 9325, at an azimuth of 70 degrees
and a dip of-75 degrees. It intersected a number of mineralized sections,
including a 5.2 metre intersection in the Lower Skarn averaging 1.1% Cu.
The best intersections come from hole DC07B208, drilled on section 9350 at an
azimuth of 2380 and a dip of -58 degrees, which includes 9.3 meters drill
width averaging 1.8% Cu.
El Gallo Assay Results
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Cu Zn Au Ag True
Drill hole From To Interval (%) (%) (ppm) (ppm) width Zone
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DB07B201 130.0 133.0 3.0 0.5 0.1 12 0.5 3.0 LS
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234.0 243.0 9.0 1.0 0.2 18 1.0 8.5 LS
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249.0 252.0 3.0 0.8 0.0 6 0.8 3.0 LS
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DB07B202 63.5 66.8 3.3 0.18 6.9 0.03 7 2.1 US
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79.7 82.7 3.0 0.42 12.4 0.02 7 1.9 US
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85.0 97.5 12.5 1.3 Nil 0.05 23 8.0 LS
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DB07B204 121.0 123.5 2.5 1.4 18.0 0.05 14 2.2 US
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Incuding. 121.7 122.0 0.3 7.2 26.4 0.04 44 US
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156.6 161.9 5.3 0.1 3.7 0.01 4 4.6 US
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Including 156.6 157.7 1.1 0.0 12.1 0.01 6 US
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179.8 188.1 8.3 1.1 0.4 0.02 20 7.2 LS
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237.0 246.0 9.0 1.2 0.0 0.45 16 7.8 LS
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255.0 257.0 2.0 1.5 0.1 0.44 10 1.7 LS
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DB07B205 94.4 96.8 2.5 0.1 2.2 0.02 9 2.2 US
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102.2 105.0 2.8 1.0 0.0 0.02 13 2.5 LS
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175.9 181.1 5.2 1.1 0.0 0.55 19 4.5 LS
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185.5 187.4 1.9 0.4 6.1 0.05 17 1.6 LS
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DB07B208 77.6 81.6 4.0 0.7 0.0 0.07 25 3.5 LS
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83.6 92.9 9.3 1.8 0.0 0.06 26 8.1 LS
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143.5 145.5 2.0 0.6 0.0 0.05 13 1.7 LS
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As of September 30th 2007, some 17,840 metres of diamond core drilling have
been completed on the Bolivar project, 12,011 from surface and 5,829 from
underground. Over the past few weeks, with the end of the rainy season,
productivity has increased and more drilling has been achieved. Dia Bras
still intends to complete a 25,000 metres drilling program at the project
this year.
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Grand
Jan Feb Mar Apr May June July Aug Sept Total
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Underground 558 300 869 455 792 349 626 589 1,291 5,829
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Surface 371 1,503 1,227 1,298 1,115 1,237 1,068 1,811.8 2,380.5 12,011
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Total 929 1,803 2,096 1,753 1,907 1,586 1,694 2,400.8 3,671.5 17,840
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Method of analysis
Samples were prepared at Chemex lab facility in Chihuahua, Mexico, and
analyzed by ICP and AA methods by Chemex at their facilities in Vancouver,
Canada.
Quality control
Diamond drill samples sent for analysis consist of half NQ-size diamond core
split on site, prepared by 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. 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 Francois
Auclair, P. Geo. and Vice-President, Exploration of Dia Bras, a Qualified
Person as defined in NI43-101.
About Dia Bras
Dia Bras is a Canadian exploration mining company focused on precious and base
metals in the State of Chihuahua in northern Mexico. The Company is committed
to developing and adding value to its assets - the Bolivar copper-zinc project
and the Cusi silver mining camp. The Company trades 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.
FOR FURTHER INFORMATION PLEASE CONTACT:
Dia Bras Exploration Thomas L. Robyn Executive Chairman 514-393-8875
Dia Bras Exploration Rejean Gosselin President & CEO 514-393-8875
www.diabras.com Sun International Communications Nicole Blanchard Managing Partner
450-627-6600
The TSX Venture Exchange does not accept responsibility for the adequacy or
accuracy of this press release.