|
Underground
Delineation Drilling at Northgate Minerals' Young-Davidson Mining Project
Confirms Zone Geometry and Grade
Results Show Potential for Higher "As
Mined" Grade from the Underground
VANCOUVER,
May 26, 2011 /CNW/ - Northgate
Minerals Corporation (TSX: NGX, NYSE Amex: NXG) is pleased to announce
results from a highly successful underground delineation drill program at its
100% owned Young-Davidson Mining Project located in northern Ontario.
Delineation drilling was initiated to define the stope limits for underground mining within the Upper
Boundary Zone ("UBZ"). Results from the drill program have
confirmed the grade, continuity and width of the UBZ, which contains
3.64 million tonnes of ore and is scheduled
for mining in the early years of underground production. Young-Davidson
is currently forecasting an initial 15-year mine-life with production
commencing in 2012 from a small open pit before mining moves underground in
2014. The area of delineation drilling covers approximately half of the ore
tonnage in the UBZ.
UBZ Drill Highlights
- The UBZ delineation drill program consisted of
66 holes with much closer-spaced drilling than what was used to develop
the initial reserve. When combined with the historic "as
mined" ore grade on the property of 3.39 grams per tonne (g/t), results continue to suggest a strong
probability that the ore grade will be closer to the historic "as
mined" grade when the underground orebody
is actually mined.
- Of the 66 holes that were drilled in the UBZ,
26 holes returned a significant result of greater than 95 gram-metres and 70% of the holes returned greater than 50
gram-metres.
- Hole YR-36: returned 11.13 g/t uncut over
44.0 metres ("m") (estimated 37.0 m
true thickness).
- Hole YR-17: returned 6.34 g/t uncut over
44.0 m (estimated 43.6 m true thickness).
- Hole YR-16: returned 5.32 g/t over 54.8 m
(estimated 45.9 m true thickness).
- Hole YM10-16: returned 4.64 g/t over 58.8
m (estimated 51.3 m true thickness).
- Drill results reported herein will be used to
update reserve and resource estimates at the end of the year.
"The delineation drill program within the Upper
Boundary Zone has been extremely successful" commented Ken Stowe,
President and CEO. "Results from this delineation program are essential
as we move closer to our first gold pour in 2012, as this information gives
us confidence in the orebody, confirming the grade,
continuity and width of the zone. In addition, the comparison between cut and
uncut drill results from the recent drilling continues to indicate that there
is strong potential for the actual "as mined" grade of the current
underground reserve to be up to 10% higher than our current reserve grade,
which we will look for when the first underground ore is delivered to the
mill in 2014."
UBZ Delineation Drill Program
The UBZ delineation drill program began in 2008.
Results from the 2008 drill program were used in the current reserve and
resource estimate, but have not been individually reported before. The
program was put on hold in 2009 and part of 2010 as Northgate had sufficient
drill information to form its initial proven and probable reserve estimate of
2.8 million ounces of gold1. Drilling re-commenced in the
fall of 2010 with approximately 6,350 m drilled.. In
total, 66 holes have been completed (28 NQ and 38 BQ diameter core
holes) in the near-surface portion of the UBZ. These holes are required
to define final stoping boundaries with increased
resolution and to plan for an efficient and safe mining sequence over the
life of the mine.
The UBZ in relation to the current Young-Davidson
reserve is shown on the longitudinal section in Figure 1. The UBZ is
located on the structural footwall of a steeply south-dipping syenite contact with meta-sediments over an area
equivalent to three hectares. The area of infill drilling covers
approximately half of the ore tonnage in the UBZ (see Figure 2). The
mineralization style is disseminated with pyrite associated with sheeted
quartz-pyrite veinlets in well
developed potassic alteration.
Delineation drilling has been conducted on sections spaced 15 m to 30 m
apart from ramp access located 50 m - 70 m in the footwall of the
mineralization. Previous drilling completed to develop the current reserve
was wider-spaced (30 m to 45 m centres).
Of the 66 holes completed from the UBZ delineation
program, 26 holes returned intervals greater than 95 gram-metres
and are presented in Table 1 (in bold). Complete drill results can be found
in Appendix 1 at the end of this press release. Results are presented
as interval totals for cut (to 20 g/t gold) and uncut analyses. Delineation
drilling for the near-surface sector of the UBZ has been highly successful
confirming the grade, continuity and widths of the original resource model
and has added new resource potential in the footwall of the UBZ (see Figures
3 - 7) as shown by the red lines appearing outside of the resource outline
(in magenta).
Uncut delineation drill results averaged 3.76 g/t
gold or 3.39 g/t gold when cut to 20 g/t. The 11% difference
between cut and uncut assays is consistent with the difference noted in the
wider-spaced exploration drilling that was used to generate the 2.8 million
ounce reserve at Young-Davidson.
Capping is a technique that is employed in the estimation of resources and
reserves to apply a margin of conservation to these estimates in the event
that higher grade nuggets are disproportionately represented in the sparse
sampling. The fact that the difference between cut and uncut grades continues
to be the same in the closer-spaced delineation drilling that was recently
completed combined with the fact that the historic "as mined" grade
on the property was 12.7% higher than the current reserve grade, suggests the
strong possibility that "as mined" ore grades from the underground orebody will exceed the current reserve grade.
Next Steps
Results from this drill program will be incorporated
into the annual reserve and resource update at the end of the year.
Delineation drilling on the property is ongoing and future efforts will focus
on the upper part of the Lucky Zone ore lenses.
Figure 1 - Young-Davidson Longitudinal Section
(looking north). UBZ in red with black outline.
www.northgateminerals.com/Theme/Northgate/files/Releases/2011/YDUBZFig1.JPG
Figure 2 - Young-Davidson Upper Boundary Zone
www.northgateminerals.com/Theme/Northgate/files/Releases/2011/YDUBZFig2.JPG
Figures 3 - 7 illustrate each drilling section
through the UBZ confirming the original geometry and widths determined from
the initial 2008 resource work. The red lines are the mineralized portions of
the drill holes reported in Table 1 and Appendix 1, while magenta shows the
resource outline for the UBZ. Mineralized portions of the drill holes
appearing outside of the resource outline demonstrate new resource potential
in the footwall of the UBZ. At the west end of the resource, there is a
post-mineral diabase dyke, which is actually
located in a slightly lower position than originally modeled.
Table 1: Selected Assay Results from UBZ Delineation
Drill Program (>95 gram-metres in bold)
|
Hole ID
|
From
(m)
|
To
(m)
|
Interval
(m)
|
True
Thickness
(m)
|
Gold Uncut
(g/t)
|
Gold Cut
20 g/t
|
Comment
|
|
YM10-13
|
35.7
|
78.1
|
42.4
|
38.9
|
3.41
|
2.85
|
Upper UBZ
|
|
incl
|
35.7
|
51.5
|
15.8
|
14.5
|
5.84
|
4.34
|
|
|
incl
|
65.5
|
78.1
|
12.6
|
11.6
|
3.75
|
3.75
|
|
|
YM10-15
|
38.0
|
52.5
|
14.5
|
14.1
|
1.26
|
1.26
|
Upper UBZ
|
|
incl
|
38.0
|
46.5
|
8.5
|
8.2
|
8.50
|
8.50
|
Upper UBZ
|
|
|
65.0
|
81.8
|
16.8
|
16.5
|
1.46
|
1.46
|
Upper UBZ
|
|
97.5
|
123.5
|
26.0
|
25.5
|
3.86
|
3.86
|
Upper UBZ
|
|
YM10-16
|
10.3
|
12.4
|
2.1
|
1.8
|
3.65
|
3.65
|
UBZ Footwall
|
|
28.3
|
30.2
|
1.9
|
1.6
|
5.58
|
5.58
|
UBZ Footwall
|
|
57.8
|
116.6
|
58.8
|
51.3
|
4.64
|
4.64
|
|
|
incl
|
59.9
|
109.0
|
49.1
|
42.7
|
5.27
|
5.27
|
|
|
incl
|
82.3
|
104.5
|
22..2
|
19.3
|
6.43
|
6.43
|
|
|
YM10-20
|
59.5
|
113.6
|
54.1
|
52.0
|
4.32
|
2.48
|
|
|
incl
|
59.5
|
77.5
|
18.0
|
17.3
|
9.78
|
4.24
|
|
|
incl
|
82.9
|
98.3
|
15.4
|
14.8
|
2.51
|
2.51
|
|
|
incl
|
102.6
|
108.8
|
6.2
|
6.0
|
2.45
|
2.45
|
|
|
YM10-21
|
47.5
|
52.0
|
4.5
|
4.3
|
5.22
|
5.22
|
|
|
58..0
|
61.0
|
3.0
|
2.9
|
4.34
|
4.34
|
|
|
80.5
|
113.3
|
32.8
|
31.4
|
4.27
|
3.53
|
|
|
YM10-23
|
64.0
|
68.5
|
4.5
|
4.0
|
3.02
|
3.02
|
|
|
|
78.3
|
104.0
|
25.7
|
22.9
|
6.26
|
6.26
|
|
|
YM10-24
|
51.7
|
104.1
|
52.4
|
51.4
|
1.92
|
1.92
|
|
|
incl
|
51.7
|
65.5
|
13.8
|
13.5
|
2.21
|
2.21
|
|
|
incl
|
72.7
|
104.1
|
31.4
|
30.8
|
2.19
|
2.19
|
|
|
YM10-26
|
51.2
|
111.2
|
60.0
|
53.8
|
1.96
|
1.96
|
|
|
incl
|
51.2
|
77.8
|
26.6
|
23.9
|
2.73
|
2.73
|
|
|
YM10-28
|
60.5
|
65.0
|
4.5
|
3.7
|
3.30
|
3.30
|
Hole
extended to test syenite
|
|
70.5
|
115.1
|
44.6
|
36.8
|
2.61
|
2.61
|
|
|
incl
|
77.4
|
108.5
|
31.1
|
25.5
|
3.15
|
3.15
|
|
|
YM11-29
|
72.01
|
109.2
|
37.19
|
33.3
|
5.37
|
5.37
|
|
|
YM11-31
|
52.65
|
55.65
|
3.0
|
3.0
|
3.08
|
3.08
|
|
|
70.83
|
105.8
|
34.97
|
34.9
|
3.72
|
3.67
|
|
|
|
113
|
117.0
|
4.0
|
4.0
|
1.54
|
1.54
|
|
|
YM11-39
|
81.9
|
95.0
|
13.1
|
11.9
|
14.68
|
7.31
|
|
|
incl
|
84.9
|
95.0
|
10.1
|
9.2
|
18.77
|
9.21
|
|
|
YR-12
|
34.1
|
71.0
|
36.9
|
35.9
|
3.59
|
3.59
|
|
|
YR-13
|
38.4
|
87..1
|
48.7
|
47..3
|
2.61
|
2.38
|
|
|
YR-14
|
61.0
|
117.1
|
56.1
|
44.9
|
4.85
|
4.85
|
|
|
YR-15
|
28.8
|
36.0
|
7.2
|
4.9
|
1.95
|
1.95
|
|
|
|
64.9
|
109.8
|
44.9
|
31.0
|
4.05
|
4.05
|
|
|
|
122.0
|
132.4
|
10.4
|
7.3
|
2.67
|
2.67
|
|
|
YR-16
|
47.0
|
101.8
|
54..8
|
45.9
|
5.32
|
5.32
|
|
|
YR-17
|
29.0
|
73.0
|
44.0
|
43.6
|
6.34
|
6.18
|
|
|
YR-25
|
34.5
|
45.7
|
11.2
|
9.2
|
4.73
|
4.73
|
|
|
|
64.2
|
101.5
|
37.3
|
30.7
|
3.18
|
3.18
|
|
|
YR-30
|
48.8
|
97.3
|
48.5
|
43.3
|
3.88
|
3.87
|
|
|
YR-31
|
39.1
|
77.6
|
38.5
|
38.5
|
3.99
|
3.99
|
|
|
YR-35
|
45.5
|
79.1
|
33.6
|
30.9
|
4.65
|
4.65
|
|
|
YR-36
|
61.0
|
105.0
|
44.0
|
37.0
|
11.13
|
5.06
|
|
|
YR-37
|
58.0
|
128.0
|
70.0
|
52.8
|
2.66
|
2.66
|
|
|
YR-38
|
37.0
|
46.9
|
9.9
|
9.4
|
11.39
|
5.84
|
|
|
62.0
|
72.0
|
10.0
|
9.5
|
9.65
|
7.83
|
|
|
YR-50
|
67.5
|
89.4
|
21.9
|
19.8
|
6.41
|
5.86
|
|
|
94.5
|
100.4
|
5.9
|
5.3
|
3.55
|
3.55
|
|
|
117.0
|
127.5
|
10.5
|
9.5
|
2.15
|
2.15
|
|
Figure 3 - UBZ Drill Section 23510
(Red lines are mineralized portions of the drill
holes reported in Table 1. Magenta shows the resource outline for the UBZ.
Red lines appearing outside of the resource outline represent new resource
potential).
www.northgateminerals.com/Theme/Northgate/files/Releases/2011/YDUBZFig3.JPG
Figure 4 - UBZ Drill Section 23540
(Red lines are mineralized portions of the drill
holes reported in Table 1. Magenta shows the resource outline for the UBZ.
Red lines appearing outside of the resource outline represent new resource
potential).
www.northgateminerals..com/Theme/Northgate/files/Releases/2011/YDUBZFig4.JPG
Figure 5 - UBZ Drill Sections 23570
(Red lines are mineralized portions of the drill
holes reported in Table 1. Magenta shows the resource outline for the UBZ.
Red lines appearing outside of the resource outline represent new resource
potential).
www.northgateminerals.com/Theme/Northgate/files/Releases/2011/YDUBZFig5.JPG
Figure 6 - UBZ Drill Section 23600
(Red lines are mineralized portions of the drill
holes reported in Table 1. Magenta shows the resource outline for the UBZ.
Red lines appearing outside of the resource outline represent new resource
potential).
www.northgateminerals.com/Theme/Northgate/files/Releases/2011/YDUBZFig6.JPG
Figure 7 - UBZ Drill Section 23630
(Red lines are mineralized portions of the drill
holes reported in Table 1. Magenta shows the resource outline for the UBZ.
Red lines appearing outside of the resource outline represent new resource
potential).
www.northgateminerals.com/Theme/Northgate/files/Releases/2011/YDUBZFig7.JPG
Appendix 1: Complete Assay Results from UBZ Delineation
Drill Program
|
Hole ID
|
From
(m)
|
To
(m)
|
Interval
(m)
|
True Thickness
(m)
|
Gold Uncut
(g/t)
|
Gold Cut
20 g/t
|
Comment
|
|
YM10-04
|
39.5
|
44.0
|
4.5
|
4.4
|
3.19
|
3.19
|
Upper UBZ
|
|
YM10-05
|
No significant
values
|
|
YM10-06
|
37.7
|
42.9
|
2.64
|
3.9
|
2.64
|
2.64
|
Upper UBZ
|
|
|
60.8
|
63.9
|
3.1
|
2.3
|
2.48
|
2.48
|
Upper UBZ
|
|
|
83.0
|
91.9
|
8.9
|
6.9
|
2.94
|
2.94
|
Upper UBZ
|
|
YM10-07
|
80.8
|
88
|
7.2
|
6.6
|
1.19
|
1.19
|
Upper UBZ
|
|
YM10-08
|
No significant
values
|
|
YM10-09
|
No significant
values
|
|
YM10-10
|
31.6
|
44.4
|
12.8
|
12.7
|
5.98
|
5.98
|
Upper UBZ
|
|
|
59.4
|
66.3
|
6.9
|
6.9
|
1.20
|
1.20
|
|
|
YM10-11
|
43.2
|
57.7
|
13.8
|
11.4
|
2.63
|
2.63
|
Upper UBZ
|
|
incl
|
43.2
|
49.2
|
6.0
|
4.7
|
4.41
|
4.41
|
|
|
|
70.7
|
91.5
|
20.8
|
16.5
|
4.51
|
3.92
|
|
|
incl
|
75.7
|
91.5
|
15.8
|
12.3
|
5.50
|
4.74
|
|
|
incl
|
88.5
|
91.5
|
3.0
|
2.3
|
22.04
|
18.00
|
|
|
YM10-12
|
3.0
|
8.7
|
5.7
|
4.2
|
1.93
|
1.93
|
Upper UBZ
|
|
|
38.2
|
48.0
|
9.8
|
7.3
|
0.98
|
0.98
|
|
|
YM10-13
|
35.7
|
78.1
|
42.4
|
38.9
|
3.41
|
2.85
|
Upper UBZ
|
|
incl
|
35.7
|
51.5
|
15.8
|
14.5
|
5.84
|
4.34
|
|
|
incl
|
65.5
|
78.1
|
12.6
|
11.6
|
3.75
|
3.75
|
|
|
YM10-14
|
28.8
|
40.3
|
11.5
|
10.4
|
1.11
|
1.11
|
Upper UBZ
|
|
incl
|
32.3
|
40.3
|
8.0
|
7.3
|
1.23
|
1.23
|
|
|
incl
|
37.9
|
40.3
|
2.4
|
2.2
|
2.47
|
2.47
|
|
|
|
95.8
|
101.0
|
5.2
|
4.7
|
1.56
|
1.56
|
|
|
YM10-15
|
38.0
|
52.5
|
14.5
|
14.1
|
1.26
|
1.26
|
Upper UBZ
|
|
incl
|
38.0
|
46.5
|
8.5
|
8.2
|
8.50
|
8.50
|
Upper UBZ
|
|
|
65.0
|
81.8
|
16.8
|
16.5
|
1.46
|
1.46
|
Upper UBZ
|
|
|
97.5
|
123.5
|
26.0
|
25.5
|
3.86
|
3.86
|
Upper UBZ
|
|
YM10-16
|
10.3
|
12.4
|
2.1
|
1.8
|
3.65
|
3.65
|
UBZ Footwall
|
|
|
28.3
|
30.2
|
1.9
|
1.6
|
5.58
|
5.58
|
UBZ Footwall
|
|
|
57.8
|
116.6
|
58.8
|
51.3
|
4.64
|
4.64
|
|
|
incl
|
59.9
|
109.0
|
49.1
|
42.7
|
5.27
|
5.27
|
|
|
incl
|
82.3
|
104.5
|
22.2
|
19.3
|
6.43
|
6.43
|
|
|
YM10-17
|
74.1
|
124.3
|
50.2
|
36.0
|
1.82
|
1.82
|
|
|
incl
|
74.1
|
86.8
|
12.7
|
9.1
|
4.33
|
4.33
|
|
|
YM10-18
|
34.9
|
42.4
|
7.5
|
6.1
|
2.11
|
2.11
|
Footwall UBZ
|
|
|
58.5
|
70.0
|
11.5
|
9.4
|
2.77
|
2.77
|
Footwall UBZ
|
|
|
83.6
|
123.2
|
39.6
|
33.3
|
1.59
|
1.59
|
|
|
incl
|
105.5
|
123.2
|
17.7
|
14.9
|
2.30
|
2.30
|
|
|
|
130
|
141.2
|
11.2
|
9.5
|
2.34
|
2.34
|
|
|
YM10-19
|
77.4
|
113.8
|
36.4
|
36.3
|
1.86
|
1.86
|
|
|
incl
|
86.5
|
113.8
|
27.3
|
27.2
|
2.12
|
2.12
|
|
|
incl
|
86.5
|
100.0
|
13.5
|
13.5
|
2.63
|
2.63
|
|
|
YM10-20
|
59.5
|
113.6
|
54.1
|
52.0
|
4.32
|
2.48
|
|
|
incl
|
59.5
|
77.5
|
18.0
|
17.3
|
9.78
|
4.24
|
|
|
incl
|
82.9
|
98.3
|
15.4
|
14.8
|
2.51
|
2.51
|
|
|
incl
|
102.6
|
108.8
|
6.2
|
6.0
|
2.45
|
2.45
|
|
|
YM10-21
|
47.5
|
52.0
|
4.5
|
4.3
|
5.22
|
5.22
|
|
|
|
58.0
|
61.0
|
3.0
|
2.9
|
4.34
|
4.34
|
|
|
|
80.5
|
113.3
|
32.8
|
31.4
|
4.27
|
3.53
|
|
|
YM10-22
|
4.5
|
7.8
|
3.3
|
2.6
|
3.12
|
3.12
|
|
|
|
54.7
|
57.7
|
3.0
|
2.4
|
2.73
|
2.73
|
|
|
|
63.0
|
73.2
|
10.2
|
8.2
|
3.09
|
3.09
|
|
|
|
92.5
|
117.0
|
24.5
|
20.6
|
1.71
|
1.71
|
|
|
YM10-23
|
64.0
|
68.5
|
4.5
|
4.0
|
3.02
|
3.02
|
|
|
|
78.3
|
104.0
|
25.7
|
22.9
|
6.26
|
6.26
|
|
|
YM10-24
|
51.7
|
104.1
|
52.4
|
51.4
|
1.92
|
1.92
|
|
|
incl
|
51.7
|
65.5
|
13.8
|
13.5
|
2.21
|
2.21
|
|
|
incl
|
72.7
|
104.1
|
31.4
|
30.8
|
2.19
|
2.19
|
|
|
YM10-25
|
46.6
|
57.7
|
11.1
|
11.1
|
2.32
|
2.32
|
|
|
|
69.0
|
103.0
|
34.0
|
33.9
|
2.39
|
2.39
|
|
|
incl
|
69.0
|
85.5
|
16.5
|
16.3
|
3.70
|
3.70
|
|
|
YM10-26
|
51.2
|
111.2
|
60..0
|
53.8
|
1.96
|
1.96
|
|
|
incl
|
51.2
|
77.8
|
26.6
|
23.9
|
2.73
|
2.73
|
|
|
YM10-27
|
75.9
|
79.9
|
4.0
|
3.9
|
2.14
|
2.14
|
|
|
|
101.5
|
115.0
|
13.5
|
13.3
|
3.25
|
3.25
|
|
|
YM10-28
|
60..5
|
65.0
|
4.5
|
3.7
|
3.30
|
3.30
|
Hole
extended to test syenite
|
|
|
70.5
|
115.1
|
44.6
|
36.8
|
2.61
|
2.61
|
|
|
incl
|
77.4
|
108.5
|
31.1
|
25.5
|
3.15
|
3.15
|
|
|
YM11-29
|
72.01
|
109.2
|
37.19
|
33.3
|
5.37
|
5.37
|
|
|
YM11-30
|
67.5
|
79.0
|
11.5
|
11.0
|
2.50
|
2.50
|
|
|
incl
|
70.9
|
79.0
|
8.1
|
7.8
|
2.64
|
2.64
|
|
|
|
84.5
|
112.3
|
27.8
|
26.7
|
2.39
|
2.39
|
|
|
incl
|
93
|
112.3
|
19.3
|
18.5
|
2.83
|
2.83
|
|
|
YM11-31
|
52.65
|
55.65
|
3.0
|
3.0
|
3.08
|
3.08
|
|
|
|
70.83
|
105.8
|
34.97
|
34.9
|
3.72
|
3.67
|
|
|
|
113
|
117.0
|
4.0
|
4.0
|
1.54
|
1.54
|
|
|
YM11-32
|
52.5
|
55.5
|
3.0
|
2.8
|
3.11
|
3.11
|
|
|
|
65.24
|
75.0
|
9.76
|
9.1
|
10.32
|
5.93
|
|
|
|
132.3
|
135.5
|
3.2
|
3.0
|
2.29
|
2.29
|
|
|
YM11-33
|
82.0
|
99.6
|
17.6
|
12.6
|
3.96
|
3.96
|
|
|
incl
|
88.0
|
99.6
|
11.6
|
8.2
|
5.60
|
5.60
|
|
|
|
145.9
|
167..0
|
21.1
|
16.1
|
5.37
|
2.57
|
|
|
incl
|
145.9
|
150.5
|
4.6
|
3.5
|
18.69
|
5.88
|
|
|
incl
|
156.5
|
167.0
|
10.5
|
8.0
|
2.43
|
2.43
|
|
|
YM11-34
|
71.3
|
84.0
|
12.7
|
12.4
|
2.95
|
2.95
|
|
|
incl
|
71.3
|
81.0
|
9.7
|
9.4
|
3.67
|
3.67
|
|
|
YM11-35
|
102.45
|
137.0
|
34.55
|
27.3
|
2.21
|
2.21
|
|
|
incl
|
112.4
|
129.5
|
17.1
|
13.5
|
3.20
|
3.20
|
|
|
|
152.5
|
172.0
|
19.5
|
15.7
|
1.46
|
1.46
|
|
|
incl
|
163
|
172.0
|
9.0
|
7.3
|
2.02
|
2.02
|
|
|
YM11-36
|
88.4
|
118.5
|
30.1
|
27.4
|
2.67
|
2.67
|
|
|
incl
|
88.4
|
111.0
|
22.6
|
20.6
|
2.86
|
2.86
|
|
|
YM11-37
|
13.7
|
15.65
|
1.95
|
1.9
|
2.42
|
2.42
|
|
|
|
100.5
|
106..0
|
5.5
|
5.3
|
4.33
|
4.33
|
|
|
|
121.5
|
127.4
|
5.9
|
5.7
|
4.51
|
4.51
|
|
|
YM11-38
|
87.0
|
93.0
|
6.0
|
6.0
|
1.92
|
1.92
|
|
|
|
125.5
|
131.5
|
6.0
|
6.0
|
2.37
|
2..37
|
|
|
YM11-39
|
81.9
|
95.0
|
13.1
|
11.9
|
14.68
|
7.31
|
|
|
incl
|
84.9
|
95.0
|
10.1
|
9.2
|
18.77
|
9.21
|
|
|
YM11-40
|
91.2
|
112.9
|
21.7
|
18.4
|
4.53
|
4.32
|
|
|
incl
|
91.2
|
106.5
|
15.3
|
13.0
|
5.77
|
5.47
|
|
|
YM11-41
|
117.0
|
149.5
|
32.5
|
20.8
|
3.39
|
3.39
|
|
|
incl
|
126.0
|
149.5
|
23.5
|
15.0
|
4.16
|
4.16
|
|
|
incl
|
130.5
|
149.5
|
19.0
|
12.2
|
4.45
|
4.45
|
|
|
YR-12
|
34.1
|
71.0
|
36.9
|
35.9
|
3.59
|
3.59
|
|
|
YR-13
|
38.4
|
87.1
|
48.7
|
47.3
|
2.61
|
2.38
|
|
|
YR-14
|
61.0
|
117.1
|
56.1
|
44.9
|
4.85
|
4.85
|
|
|
YR-15
|
28.8
|
36.0
|
7.2
|
4.9
|
1.95
|
1.95
|
|
|
|
64.9
|
109.8
|
44.9
|
31..0
|
4.05
|
4.05
|
|
|
|
122.0
|
132..4
|
10.4
|
7.3
|
2.67
|
2.67
|
|
|
YR-16
|
47.0
|
101.8
|
54.8
|
45.9
|
5.32
|
5.32
|
|
|
YR-17
|
29.0
|
73.0
|
44.0
|
43.6
|
6.34
|
6.18
|
|
|
YR-18
|
52.0
|
66.0
|
14.0
|
13.1
|
5.77
|
3.07
|
|
|
YR-20
|
30.2
|
53.8
|
23.6
|
14.0
|
5.44
|
3.94
|
|
|
|
97.5
|
109.5
|
12.0
|
7.3
|
1.77
|
1.77
|
|
|
YR-21
|
24.9
|
37.5
|
12.6
|
10.0
|
3.72
|
3.72
|
|
|
|
61.7
|
78.0
|
16.3
|
13.0
|
2.84
|
2.84
|
|
|
YR-24
|
7.3
|
16.0
|
8.7
|
8.4
|
4.02
|
4..02
|
|
|
|
33.0
|
36.6
|
3.6
|
3.5
|
4.33
|
4.33
|
|
|
|
64.0
|
79.0
|
15.0
|
14.6
|
2.65
|
2.65
|
|
|
YR-25
|
34.5
|
45.7
|
11.2
|
9.2
|
4.73
|
4.73
|
|
|
|
64.2
|
101.5
|
37.3
|
30.7
|
3.18
|
3.18
|
|
|
YR-26
|
22.5
|
27.0
|
4.5
|
4.1
|
3.20
|
3.20
|
|
|
YR-30
|
48.8
|
97.3
|
48.5
|
43.3
|
3.88
|
3.87
|
|
|
YR-31
|
39.1
|
77.6
|
38.5
|
38.5
|
3.99
|
3.99
|
|
|
YR-32
|
41.4
|
45.4
|
4.0
|
3.5
|
5.01
|
5.01
|
|
|
|
52.4
|
55.8
|
3.4
|
3.0
|
5.40
|
5.40
|
|
|
|
69.5
|
78.0
|
8.5
|
7.5
|
5.69
|
5.69
|
|
|
YR-33
|
61.3
|
86.0
|
24.7
|
22.0
|
3.55
|
3.55
|
|
|
YR-34
|
69.0
|
79.8
|
10.8
|
8.6
|
10.33
|
7.86
|
|
|
|
94.0
|
100.5
|
6.5
|
5.2
|
1.84
|
1.84
|
|
|
|
108.8
|
122.1
|
13.3
|
10.6
|
3.62
|
3.59
|
|
|
YR-35
|
45.5
|
79.1
|
33.6
|
30.9
|
4.65
|
4.65
|
|
|
YR-36
|
61.0
|
105.0
|
44.0
|
37.0
|
11.13
|
5.06
|
|
|
YR-37
|
58.0
|
128.0
|
70.0
|
52.8
|
2.66
|
2.66
|
|
|
YR-38
|
37.0
|
46.9
|
9.9
|
9.4
|
11.39
|
5.84
|
|
|
|
62.0
|
72.0
|
10.0
|
9.5
|
9.65
|
7.83
|
|
|
YR-39
|
40.0
|
47.7
|
7.7
|
7.3
|
7.06
|
7.06
|
|
|
|
60.0
|
68.0
|
8.0
|
7.6
|
2.83
|
2.83
|
|
|
YR-40
|
65.0
|
73.0
|
8.0
|
7.3
|
1.99
|
1.99
|
|
|
YR-42
|
105.0
|
168.0
|
62.3
|
30.5
|
2.43
|
2.43
|
|
|
YR-48
|
93.8
|
101.4
|
7.6
|
6.4
|
4.33
|
4.33
|
|
|
YR-49
|
34.6
|
40.5
|
5.9
|
5.7
|
5.69
|
5.69
|
|
|
|
85.0
|
99.0
|
14.0
|
13.6
|
2.49
|
2.49
|
|
|
YR-50
|
67.5
|
89.4
|
21.9
|
19.8
|
6.41
|
5.86
|
|
|
|
94.5
|
100.4
|
5.9
|
5.3
|
3.55
|
3.55
|
|
|
|
117.0
|
127.5
|
10.5
|
9.5
|
2.15
|
2.15
|
|
|
YR-51
|
128.0
|
135.0
|
7.0
|
4.1
|
4.37
|
4.37
|
|
Qualified Persons
The program design, implementation, quality assurance/quality control and
interpretation of the results are under the control of Northgate's geological
staff, which includes a number of individuals who are qualified persons as
defined under NI 43-101. Carl Edmunds, PGeo,
Northgate's Exploration Manager, is responsible for the overall supervision
of the program.
* * * * * * *
Note to Investors:
The terms "Qualified Person", "Mineral Reserve",
"Proven Mineral Reserve", "Probable Mineral Reserve",
"Mineral Resource", "Measured Mineral Resource",
"Indicated Mineral Resource", and "Inferred Mineral
Resource" used in this news release are defined in accordance with NI
43-101.
* * * * * * *
Northgate
Minerals Corporation is a gold and
copper producer with mining operations, development projects and exploration
properties in Canada
and Australia. Our vision is to be the leading intermediate gold
producer by identifying, acquiring, developing and operating profitable,
long-life mining properties.
* * * * * * *
Cautionary Note Regarding Forward-Looking Statements
and Information:
This Northgate press release contains "forward-looking
information", as such term is defined in applicable Canadian securities
legislation and "forward-looking statements" within the meaning of the
United States Private Securities Litigation Reform Act of 1995,
concerning Northgate's future financial or operating performance and other
statements that express management's expectations or estimates of future
developments, circumstances or results. Generally, forward-looking
information can be identified by the use of forward-looking terminology such
as "expects", "believes", "anticipates",
"budget", "scheduled", "estimates", "forecasts",
"intends", "plans" and variations of such words and phrases,
or by statements that certain actions, events or results "may",
"will", "could", "would" or "might"
"be taken", "occur" or "be achieved".
Forward-looking information is based on a number of assumptions and estimates
that, while considered reasonable by management based on the business and
markets in which Northgate operates, are inherently subject to significant
operational, economic and competitive uncertainties and contingencies.
Northgate cautions that forward-looking information involves known and
unknown risks, uncertainties and other factors that may cause Northgate's
actual results, performance or achievements to be materially different from
those expressed or implied by such information, including, but not limited to
gold and copper price volatility; fluctuations in foreign exchange rates and
interest rates; the impact of any hedging activities; discrepancies between
actual and estimated production, between actual and estimated reserves and
resources or between actual and estimated metallurgical recoveries; costs of
production; capital expenditure requirements; the costs and timing of
construction and development of new deposits; and the success of exploration
and permitting activities. In addition, the factors described or referred to
in the section entitled "Risk Factors" in Northgate's Annual
Information Form for the year ended December 31, 2009 or under
the heading "Risks and Uncertainties" in Northgate's 2009 Annual
Report, both of which are available on the SEDAR website at www.sedar.com, should be reviewed in conjunction with the information found in this
press release. Although Northgate has attempted to identify important factors
that could cause actual results, performance or achievements to differ
materially from those contained in forward-looking information, there can be
other factors that cause results, performance or achievements not to be as
anticipated, estimated or intended. There can be no assurance that such
information will prove to be accurate or that management's expectations or
estimates of future developments, circumstances or results will materialize.
Accordingly, readers should not place undue reliance on forward-looking
information. The forward-looking information in this press release is made as
of the date of this press release, and Northgate disclaims any intention or
obligation to update or revise such information, except as required by
applicable law.
Cautionary Note to US Investors Regarding Mineral
Reporting Standards:
Northgate prepares its disclosure in accordance with the requirements of
securities laws in effect in Canada,
which differ from the requirements of U.S. securities laws. Terms relating to
mineral resources in this press release are defined in accordance with
National Instrument 43-101-Standards of Disclosure for Mineral Projects under
the guidelines set out in the Canadian Institute of Mining,
Metallurgy, and Petroleum Standards on Mineral Resources and Mineral
Reserves. The Securities and Exchange Commission (the
"SEC") permits mining companies, in their filings with the SEC,
to disclose only those mineral deposits that a company can economically and
legally extract or produce. The Company uses certain terms, such as,
"measured mineral resources" "indicated mineral
resources", "inferred mineral resources" and "probable
mineral reserves", that the SEC does not recognize (these
terms may be used in this press release and are included in the Company's
public filings which have been filed with securities commissions or similar
authorities in Canada).
_________________________
1 See press release dated January 25, 2010.
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