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DIA BRAS: 2006 EXPLORATION RESULTS AND 2007 EXPLORATION PROGRAM ON THE CU-ZN BOLIVAR PROPERTY
Montréal, Québec, - February 27, 2007 -
Dia Bras Exploration Inc. (DIB-V) ("Dia Bras or the "Company") is pleased to report new results of the 2006 exploration activities at Bolivar as well as on its 2007 proposed exploration program.
The Company will be exhibiting at the PDAC in Toronto, March 4-7, 2007 in the Metro Toronto Convention Centre. Come and meet with Dr. Thomas L. Robyn, Executive Chairman, Réjean Gosselin, President and other members of the team at Booth 4031! Dr. Robyn will also present in room 205D, on Monday March 5 at 3:20 p.m.
2006 results
One of the most significant achievements of the 2006 exploration program was the discovery of a series of high-grade skarns and breccias that led to the extraction of 96,575 tonnes at 12.64% combined Cu-Zn in the Upper Skarn Horizon at the Bolivar Mine. A new copper-zinc horizon embedded within a stratigraphic marker of magnetite skarn was discovered and named the Lower Skarn Horizon.
More than 10,000 metres of drilling was performed at Bolivar in 2006. The most significant intersections are included in table 1.
The 2007 Program
The 2007 program will encompass three strategic activities (see map attached). Drilling will aim at defining resources, expanding known resources and exploring for new ore bearing structures. Four drill rigs will be used full time on this program; two will be dedicated to resource definition, one on the extension of the known resource area and one on exploration.
Resource definition
A 5,000 meter drilling program will be undertaken on the Upper and Lower Skarn Horizon from the Bolivar mine to El Gallo in order to obtain a 43-101 resource definition of the Bolivar area. A number of short holes (200 m vertical) will be done to complete in-fill drilling of both Lower and Upper Skarn mineralized units along a continuous trend extending from the Bolivar mine to El Gallo where hole DB06B177* cut three mineralized sections including 4 meters at 16.68% Zn and 1.74% Cu .
Extension of the known resource area
A 15,000 meter drilling program will allow the Company to evaluate the extension of the high-grade targets of the Upper Skarn Horizon and also test the Lower Skarn Horizon North and East of the Bolivar Mine. An hexagonal drilling pattern of 175 x 50 should allow Dia Bras to systematically intercept the structural trend of the mineralized zones. This program will focus on the immediate area of the known mine resource and multiple showings (Bolivar NW, La Increíble, El Gallo, Montura). Multiple targets include:
- the upper Cu-Zn skarn: exposed from Bolivar Cu-Zn Mine to El Val
>3-5 million tonnes potential at 1.5-2% Cu + 8-10% Zn - the lower Cu-Fe skarn exposed from Bolivar Mine to El Val and drilled over an area of
800 x 400m, with >20-60 Mt potential @ 2-4% Cu, 20-40% Fe, 50-100 g/t Ag, 1-2 g/t Au - Cananea-type breccia pipes at Increíble
1-5 Mt @ 5-8% Cu, 100-200 g/t Ag, 1-3 g/t Au
Exploration drilling
An exploration drilling program of 5,000 meters will allow the Company to demonstrate the tonnage potential of the Bolivar property. This drilling will be dedicated to test the strike extension of the favourable Upper and Lower skarn horizons over 2,000 m of strike length from La Montura to El Val.
The Company has already reported high grade channel samples from surface in that area (press release of December 14, 2006). There are multiple exploration targets at Bolivar including replacement/skarn deposits (10-15 Mt each @ 8-10% Zn, 1-2% Cu, 200-300 g/t Ag, 1-2 g/t Au) and a copper porphyry deposit ( 100-300 Mt@2-4% Cu, 1-3 g/t Au).
Method of analysis
The samples were analyzed by ICP and AA methods by Chemex at their facilities in Vancouver, Canada.
The technical content of this news release has been approved by André St-Michel, engineer and Executive Vice-President of Dia Bras, a Qualified Person as defined in NI43-101.
Table 1
From |
To |
Width |
Cu |
Zn |
Au |
Ag |
||
BOLIVAR SOUTH |
||||||||
DB06B165* |
US |
81.5 |
90.5 |
9.0 |
1.26 |
6.78 |
0.24 |
3.87 |
DB06B181 – |
LS |
438 |
439.2 |
1.2 |
0.30 |
3.43 |
0.06 |
4 |
and |
LS |
446 |
449 |
3.0 |
1.08 |
1.10 |
0.37 |
63 |
incl. |
LS |
447 |
448 |
1.0 |
2.06 |
1.29 |
0.59 |
138 |
EL GALLO |
||||||||
DB06B177* |
US |
135 |
139 |
4.0 |
1.74 |
16.68 |
0.02 |
20 |
incl. |
US |
136 |
138 |
2.0 |
1.33 |
28.20 |
0.00 |
16 |
and |
LS |
153 |
162 |
9.0 |
1.34 |
0.08 |
0.08 |
26 |
incl. |
LS |
156 |
159 |
3.0 |
1.94 |
0.06 |
0.02 |
35 |
and |
LS |
203.5 |
219 |
15.5 |
1.20 |
0.09 |
0.25 |
26 |
incl. |
LS |
203.5 |
209 |
5.5 |
1.63 |
0.12 |
0.36 |
45 |
DB06B178 |
LS |
237.4 |
245.7 |
8.3 |
1.03 |
0.20 |
0.24 |
21 |
and |
LS |
248 |
253 |
5.0 |
1.09 |
0.35 |
0.15 |
23 |
LA INCREÍBLE |
||||||||
DB06B183 |
LS |
285 |
290 |
5.0 |
1.14 |
0.04 |
0.16 |
14 |
and |
LS |
304.6 |
307 |
2.4 |
1.35 |
0.04 |
0.23 |
7 |
MINE BOLIVAR |
||||||||
ROSARIO |
||||||||
DB06B159* |
US |
101.0 |
111.3 |
10.3 |
0.36 |
10.59 |
0.1 |
14.8 |
DB06BM043* |
US |
18.9 |
30.8 |
11.9 |
1.91 |
7.61 |
0.14 |
52.8 |
incl. |
US |
25.5 |
27.0 |
1.5 |
1.36 |
18.35 |
0.07 |
39.0 |
incl. |
US |
27.0 |
27.8 |
0.8 |
3.94 |
11.70 |
0.13 |
61.5 |
incl. |
US |
28.4 |
29.1 |
0.7 |
3.82 |
15.50 |
0.08 |
61.0 |
incl. |
US |
30.5 |
30.8 |
0.3 |
8.04 |
38.30 |
0.14 |
57.9 |
DB06BM044 |
US |
4.6 |
9.2 |
4.6 |
0.46 |
4.57 |
0.01 |
4.47 |
incl. |
US |
4.6 |
5.5 |
0.9 |
0.96 |
8.09 |
0.02 |
8.40 |
and |
US |
19.0 |
22.5 |
3.5 |
0.72 |
6.50 |
0.03 |
11.96 |
incl. |
US |
19.5 |
20.5 |
1.0 |
2.46 |
21.80 |
0.09 |
37.90 |
DB06BM045 |
US |
1.5 |
12.0 |
10.5 |
0.43 |
3.25 |
0.11 |
7.98 |
and |
US |
35.4 |
39.5 |
4.1 |
0.47 |
5.17 |
0.08 |
9.84 |
DB06BM051 |
US |
14.3 |
16.3 |
2.0 |
3.67 |
23.50 |
0.44 |
68.4 |
and |
US |
18.0 |
20.0 |
2.0 |
1.95 |
5.90 |
0.17 |
52.7 |
| FERNANDEZ | ||||||||
DB06BM039* |
US |
40.7 |
50.4 |
9.7 |
3.56 |
35.3 |
0.00 |
29.3 |
DB06BM050 |
LS |
69.0 |
72.1 |
3.1 |
2.39 |
0.21 |
0.08 |
38.98 |
and |
LS |
86.0 |
88.0 |
2.0 |
1.23 |
1.37 |
0.14 |
30.50 |
and |
LS |
94.0 |
98.0 |
4.0 |
1.16 |
0.12 |
0.13 |
26.78 |
DB06BM053 |
US |
19.2 |
32.0 |
12.8 |
1.41 |
1.28 |
0.10 |
37.04 |
and |
US |
62.0 |
67.5 |
5.5 |
0.58 |
4.20 |
0.050 |
21.23 |
DB06BM054 |
US |
6 |
8 |
2 |
1.98 |
16.3 |
0.31 |
40.6 |
and |
US |
118 |
120 |
2 |
1.31 |
8.36 |
0.05 |
8.75 |
DB06BM056 |
US |
13.9 |
16.2 |
2.3 |
1.12 |
3.06 |
0.02 |
16.6 |
incl. |
US |
14.9 |
15.2 |
0.3 |
6.13 |
21.00 |
0.05 |
60.90 |
DB07BM057 |
US |
97.3 |
107.9 |
10.6 |
0.13 |
2.42 |
0.03 |
5.09 |
DB07BM058 |
US |
2 |
4 |
2.0 |
1.14 |
17.68 |
0.08 |
23.85 |
and |
US |
32.6 |
35.1 |
2.5 |
0.41 |
9.74 |
0.02 |
5.50 |
LS= Lowe Skarn
US= Upper Skarn
B= Surface drilling
BM= Underground drilling
*Previsously announced
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”.
For further information on Dia Bras contact:
Thomas L. Robyn
Executive Chairman
Dia Bras Exploration
(514) 393-8875 ext. 241
Réjean Gosselin
President
Dia Bras Exploration
(514) 393-8875 ext. 241
Nicole Blanchard
Managing Partner
Sun International Communications
(450) 627-6600
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.