Positive Drill
Results at Bombor� Continue to Confirm Model
Drilling program
expanded from 120,000 to 170,000 meters
March 23, 2011- Orezone Gold Corporation ( ORE:TSX ) is pleased to announce additional positive results
from its 100% owned Bombor� Gold Project in Burkina Faso, West Africa.� The latest results include 22 additional
diamond drill holes (3,151 m) that average 1.67 g/t in the sulphide zone at an
average vertical depth of 84 m. These results follow the first 18 diamond drill
holes announced on January 6, 2011 that averaged 1.18 g/t at an average drill
depth of 89 m. In addition, the first 48 reverse circulation (RC) holes (3,361
m) from the infill drilling program returned an average grade of 1.36 g/t, with
the leach residue assays (tail assays) still pending for 42 of the 48
holes.� All reported holes are from the Maga
Zone located in the northern 1.5 km of the 11 km Bombor� resource model, and
indicate a bias towards higher average grade and narrower widths when compared
to the current resource model, based on a lower cut-off of 0.5 g/t. �
"The
initial results from the Maga
Zone are very encouraging, and indicate continuity below the portion of� the deposit previously drilled, along the
mineralized trend and below the current resource model," said Pascal Marquis, V.P. Exploration for Orezone.
Bombor� is the largest undeveloped gold deposit in
Burkina Faso with 1.6 Moz Indicated and 1.9 Moz of Inferred resources
constrained within Whittle pit shells. Over 80% of the resources occur above a
depth of 80 m with an average depth of drilling of only 60 m.� The geological model indicates that a
substantial increase in the resources could be achieved by drilling deeper.� Today's results are part of a $24 million,
170,000 m drilling campaign designed to expand and upgrade the resources by as
much as 60% by increasing the average depth of drilling from 60 to 120 m.
Bombor� has exceptional infrastructure for this part of Africa as it is located
just 85 km from the capital city, adjacent to a paved highway, access to local
power and available water. A Preliminary Economic Assessment is expected in Q2
2011, a Prefeasibility Study by year-end and a Full Feasibility Study for a
large tonnage open pit Carbon in Leach ("CIL") operation by Q2, 2012.
�
Orezone has now completed 8,700 m of 35,000 m (25%) of
the core drilling and 7,000 m of the 40,000 m (17%) of RC drilling it intends
to complete by July 2011, a planned cut-off date for the data to be used in the
next resource update due in October, 2011. One additional core rig was
mobilized this week, and three more will be progressively mobilized in April,
May and June, for a total of six rigs. �
Table 1 Highlights from recent Bombor� expansion core drilling
Prospect
|
Hole-ID
|
Section
|
From
|
To
|
Length
|
Au
|
Vertical
Depth
|
Location with
|
|
|
|
(m)
|
(m)
|
(m)
|
(g/t)
|
(m)
|
respect to model
|
MH1
|
BBD0115
|
3900
|
86.0
|
129.0
|
43.0
|
1.06
|
81
|
Inside
|
MH1
|
BBD0116
|
3900
|
36.0
|
45.0
|
9.0
|
1.95
|
32
|
Inside
|
MH1
|
BBD0116
|
3900
|
58.0
|
69.0
|
11.0
|
1.01
|
48
|
Inside
|
Maga HW
|
BBD0121
|
3850
|
3.0
|
17.0
|
14.0
|
0.75
|
11
|
Outside
|
Maga Main
|
BBD0121
|
3850
|
118.0
|
124.0
|
6.0
|
2.30
|
95
|
Inside
|
MH1
|
BBD0122
|
3850
|
83.0
|
92.0
|
9.0
|
1.17
|
70
|
Inside
|
MH1
|
BBD0122
|
3850
|
107.0
|
121.0
|
14.0
|
0.89
|
96
|
Inside
|
MH1
|
BBD0123
|
3800
|
50.0
|
62.0
|
12.0
|
0.85
|
48
|
Inside
|
MH1
|
BBD0124
|
3800
|
26.0
|
40.0
|
14.0
|
1.38
|
30
|
Inside
|
MH1
|
BBD0126
|
3750
|
0.0
|
10.5
|
10.5
|
1.43
|
7
|
Inside
|
MH1
|
BBD0127
|
3700
|
123.5
|
132.5
|
9.0
|
1.64
|
104
|
Inside
|
MH2
|
BBD0117
|
3675
|
125.0
|
137.0
|
12.0
|
2.29
|
99
|
Edge
|
MH1
|
BBD0130
|
3650
|
71.0
|
74.0
|
3.0
|
5.30
|
58
|
Inside
|
MH3
|
BBD0118
|
3575
|
118.0
|
128.0
|
10.0
|
4.66
|
97
|
Below
|
MH3
|
BBD0118
|
3575
|
149.0
|
154.0
|
5.0
|
4.70
|
120
|
Outside
|
MH2
|
BBD0120
|
3575
|
24.0
|
29.0
|
5.0
|
3.60
|
23
|
Inside
|
MH2
|
BBD0120
|
3575
|
45.0
|
48.0
|
3.0
|
5.28
|
39
|
Inside
|
MH3
|
BBD0133
|
3475
|
97.5
|
111.0
|
13.5
|
3.47
|
92
|
Inside
|
MH3
|
BBD0136
|
3300
|
66.0
|
76.0
|
10.0
|
2.74
|
57
|
Below
|
Table 2 Highlights from recent Bombor� infill RC drilling
Prospect
|
Hole-ID
|
Section
|
From
|
To
|
Length
|
Au
|
Vertical
�Depth
|
Location with
|
|
|
|
(m)
|
(m)
|
(m)
|
(g/t)
|
(m)
|
respect to model
|
Maga Main
|
BBC1263
|
4525
|
1.0
|
9.0
|
8.0
|
1.41
|
5
|
Edge
|
Maga Main
|
BBC1264
|
4500
|
20.0
|
29.0
|
9.0
|
1.41
|
26
|
Inside
|
Maga Main
|
BBC1264
|
4500
|
32.0
|
42.0
|
10.0
|
2.79
|
30
|
Inside
|
Maga Main
|
BBC1265
|
4500
|
0.0
|
9.0
|
9.0
|
2.42
|
4
|
Inside
|
Maga Main
|
BBC1265
|
4500
|
31.0
|
43.0
|
12.0
|
2.05
|
30
|
Edge
|
Maga Main
|
BBC1266
|
4500
|
0.0
|
10.0
|
10.0
|
1.30
|
6
|
Outside
|
Maga Main
|
BBC1267
|
4450
|
4.0
|
14.0
|
10.0
|
1.35
|
8
|
Inside
|
Maga Main
|
BBC1268
|
4425
|
0.0
|
8.0
|
8.0
|
1.27
|
4
|
Inside
|
Maga Main
|
BBC1268
|
4425
|
17.0
|
31.0
|
14.0
|
1.20
|
17
|
Below
|
Maga Main
|
BBC1269
|
4400
|
6.0
|
37.0
|
31.0
|
1.73
|
16
|
Inside
|
Maga Main
|
BBC1270
|
4400
|
0.0
|
9.0
|
9.0
|
1.37
|
6
|
Inside
|
Maga Main
|
BBC1271
|
4325
|
38.0
|
78.0
|
40.0
|
1.07
|
46
|
Inside
|
Maga Main
|
BBC1272
|
4325
|
5.0
|
36.0
|
31.0
|
1.13
|
19
|
Inside
|
Maga Main
|
BBC1280
|
4175
|
12.0
|
33.0
|
21.0
|
1.28
|
18
|
Inside
|
Maga Main
|
BBC1282
|
4125
|
58.0
|
72.0
|
14.0
|
1.43
|
46
|
Inside
|
Maga Main
|
BBC1283
|
4125
|
32.0
|
49.0
|
17.0
|
1.21
|
30
|
Inside
|
Maga Main
|
BBC1285
|
4100
|
48.0
|
55.0
|
7.0
|
1.69
|
34
|
Inside
|
Maga Main
|
BBC1286
|
4100
|
3.0
|
34.0
|
31.0
|
1.33
|
23
|
Inside
|
Maga Main
|
BBC1287
|
4050
|
48.0
|
62.0
|
14.0
|
1.99
|
34
|
Inside
|
MH1
|
BBC1288
|
4050
|
0.0
|
15.0
|
15.0
|
1.50
|
8
|
Inside
|
Maga Main
|
BBC1289
|
4025
|
66.0
|
76.0
|
10.0
|
1.41
|
56
|
Inside
|
MH1
|
BBC1290
|
4025
|
33.0
|
48.0
|
15.0
|
1.51
|
32
|
Inside
|
MH1
|
BBC1291
|
4000
|
20.0
|
28.0
|
8.0
|
1.83
|
19
|
Inside
|
MH1
|
BBC1293
|
3950
|
24.0
|
45.0
|
21.0
|
2.09
|
28
|
Inside
|
MH1
|
BBC1294
|
3950
|
1.0
|
9.0
|
8.0
|
1.95
|
5
|
Inside
|
MH1
|
BBC1294
|
3950
|
28.0
|
38.0
|
10.0
|
1.11
|
25
|
Inside
|
MH1
|
BBC1295
|
3925
|
11.0
|
21.0
|
10.0
|
1.70
|
13
|
Inside
|
MH1
|
BBC1298
|
3900
|
19.0
|
44.0
|
25.0
|
1.01
|
25
|
Inside
|
MH1
|
BBC1299
|
3900
|
0.0
|
3.0
|
3.0
|
4.16
|
2
|
Inside
|
MH1
|
BBC1300
|
3875
|
13.0
|
27.0
|
14.0
|
1.31
|
16
|
Inside
|
MH1
|
BBC1302
|
3850
|
0.0
|
22.0
|
22.0
|
1.57
|
11
|
Inside
|
MH1
|
BBC1304
|
3750
|
17.0
|
25.0
|
8.0
|
1.31
|
16
|
Inside
|
MH1
|
BBC1305
|
3650
|
14.0
|
19.0
|
5.0
|
2.49
|
14
|
Inside
|
The
mineralized intervals are based on a lower cut-off grade of 0.5 g/t, a minimal
width of 3 m and less than two consecutive meters of dilution being included.
The true width of the mineralization is equal to about 85% of the drill length
intervals. The half-core samples were collected by Orezone employees using a
diamond saw. The core samples from the weathered (oxide) zone were prepared in
Ouagadougou by Abilab
Burkina s.a.r.l.
and SGS Burkina Faso s.a.r.l..
Orezone then split the sample to 1kg using Rotary Sample Dividers (RSD) and a 1
kg aliquot was analyzed for leachable gold at BIGS Global Burkina s.a.r.l.
in Ouagadougou, by bottle-roll cyanidation using a LeachWellTM
catalyst. The samples from the fresh or sulphide zone
were prepared by BIGS and then split by Orezone to 100 g using the RSD with a
50 g aliquot analyzed by fire assay at Abilab.
The
RC drilling samples were divided by Orezone using the RSD. A 2 kg split was
prepared by Abilab
and SGS, then
split by Orezone to 1 kg using the RSD. A 1 kg aliquot was analyzed for
leachable gold at BIGS, by bottle-roll cyanidation
using LeachWellTM.
The leach residues from all samples with a leach grade in excess of 0.2 g/t
were prepared by BIGS and then split by Orezone to 100 g using the RSD. A 50 g
aliquot was analyzed by fire assay at Abilab.
Orezone
employs a rigorous Quality Control Program (QCP) including a minimum of 10% standards,
blanks and duplicates. This program was executed under the supervision of Dr.
Pascal Marquis, V.P. Exploration for Orezone, who is a Qualified Person under
National Instrument 43-101 and approved the technical information in this
release.� A complete table of results and
the NI-43-101 Bombor� Resource Report that describes the Bombor� resource model
can be found at www.orezone.com.
Orezone
is a gold exploration and development company with significant gold resources
in Burkina Faso and more than 15 years of operating experience in West Africa,
one of the world's fastest growing gold producing regions. Orezone is
focused on developing Bombor�, the second largest gold deposit in the country,
and its pipeline of advanced gold projects. Orezone's
mission is to create wealth by discovering and developing gold resources in an
efficient and responsible manner for the benefit of its shareholders and other
stakeholders.
For further information please contact Orezone at
(613) 241-3699 or Toll Free: (888) 673-0663
Ron Little, CEO, rlittle@orezone.com����������������� Pascal
Marquis, V.P. Exploration, pmarquis@orezone.com
FORWARD LOOKING STATEMENTS AND FORWARD
LOOKING INFORMATION: This news release contains certain "forward looking
statements" within the meaning of applicable Canadian securities laws.
Forward looking statements and forward looking information are frequently
characterized by words such as "plan," "expect,"
"project," "intend," "believe,"
"anticipate", "estimate" and other similar words, or
statements that certain events or conditions "may" or
"will" occur.
FORWARD LOOKING STATEMENTS are based on the
opinions and estimates of management at the date the statements are made, and
are subject to a variety of risks and uncertainties and other factors that
could cause actual events or results to differ materially from those projected
in the forward looking statements. These factors include the inherent risks
involved in the exploration and development of mineral properties, the
uncertainties involved in interpreting drilling results and other geological
data, fluctuating metal prices, the possibility of project cost overruns or
unanticipated costs and expenses, uncertainties relating to the availability
and costs of financing needed in the future and other factors. The Company
undertakes no obligation to update forward-looking statements if circumstances
or management's estimates or opinions should change. The reader is cautioned
not to place undue reliance on forward looking statements.
Readers
are advised that National Instrument 43-101 of the Canadian Securities
Administrators requires that each category of mineral reserves and mineral
resources be reported separately. Readers should refer to the annual
information form of Orezone for the year ended December 31, 2009 and other
continuous disclosure documents filed by Orezone since January 1, 2010
available at www.sedar.com, for this detailed information, which is
subject to the qualifications and notes set forth therein.