NEWS RELEASE
JULY 26, 2007
First
Five Drillholes Confirm Excellent Potential
of Gold
Mineralization at Windarra’s Pukaskwa Property
Intersections averaging
5.51 g/t (0.16 oz/t) gold over 2.97 metres (or 11.57 g/t (0.34 oz/t) gold over
1.04 metres; or 3.76 g/t (0.11 oz/t) gold over 4.93 metres) in the first five
drillholes (see Table below) of a 14 hole, 824 metre drilling program have
confirmed the potential of the Middle Finger Lake zone on Windarra’s
wholly-owned Pukaskwa property.
The drilling, which was undertaken in
early- to mid-June, tested a zone exposed in an earlier trenching program (see
News Releases dated April 5, 2006 and July 25, 2006), which yielded an average
gold grade of between 5 and 6 g/t across nearly 6 metres in five channel
samples. It was this work, along with geophysical, and geochemical surveys,
which suggested the sizeable near-surface potential of the zone. The gold
mineralization, which remains open along trend and at depth, was intersected at
shallow depths in all holes in the program, but assays for the remaining nine
holes have not yet been received. The intersections, which yield significant
intersections across a variety of mineable widths, confirm that the Middle Finger
Lake zone has the
potential to host a significant tonnage of near-surface gold mineralization on
the Pukaskwa property. The property also has significant potential to host
narrower but much higher-grade mineralization, as is evidenced in the
Bonanza-Grade zone (see News Releases dated July 25, 2006 and July 25, 2005).
Middle Finger Lake Zone Diamond Drillhole Intersections
|
Drillhole
|
Angle
|
From
|
To
|
Interval
|
Au (g/t)
|
Au (oz/t)
|
PK07-01
|
-50
|
11.43
|
16.31
|
4.88
|
3.00
|
0.09
|
|
including
|
11.43
|
13.93
|
2.50
|
5.39
|
0.16
|
|
including
|
11.43
|
12.54
|
1.11
|
8.81
|
0.26
|
PK07-02
|
-65
|
11.25
|
15.49
|
4.24
|
5.09
|
0.15
|
|
including
|
11.25
|
14.49
|
3.24
|
6.07
|
0.18
|
|
including
|
11.25
|
12.75
|
1.50
|
8.83
|
0.26
|
PK07-03
|
-55
|
25.50
|
31.40
|
5.90
|
1.99
|
0.06
|
|
including
|
27.10
|
29.80
|
2.70
|
4.03
|
0.12
|
|
including
|
29.80
|
27.65
|
0.55
|
18.00
|
0.53
|
PK07-04
|
-75
|
16.80
|
22.00
|
5.20
|
5.81
|
0.17
|
|
including
|
16.80
|
20.70
|
3.90
|
6.74
|
0.20
|
|
including
|
19.55
|
20.25
|
0.70
|
15.75
|
0.46
|
PK07-05
|
-45
|
10.02
|
14.43
|
4.41
|
2.91
|
0.08
|
|
including
|
11.92
|
14.43
|
2.51
|
5.33
|
0.16
|
|
including
|
11.92
|
13.24
|
1.32
|
6.48
|
0.19
|
Averages of Middle Finger Lake Zone Drillhole
Intersections
|
Moderate width, moderate-grade intersections: 5.51
g/t (0.16 oz/t) gold over 2.97 metres
|
Narrower, higher-grade intersections: 11.57 g/t
(0.34 oz/t) gold over 1.04 metres
|
Broader, lower-grade intersections: 3.76 g/t (0.11
oz/t) gold over 4.93 metres
|
Four of the first five
holes were drilled from the same set-up, as a fan along a single drill section.
The set-up was approximately 30 metres north of where the roughly east-west
trending Middle Finger Lake zone is exposed in a trench. The fifth hole was
drilled approximately 25 metres to the west of the first drill set-up, along
with the sixth hole, the results for which have not yet been received. The
remaining holes in the program were drilled either along strike or down-dip
from these set-ups, as pairs of holes from different set-ups. As mentioned
above, channel samples from the Middle
Finger Lake
zone trench yielded an average grade of greater than 5 g/t gold across nearly 6
metres, and the grades of the drillhole intersections are therefore consistent
with those obtained in the trench, which exposed approximately 35-40 metres of
strike length of the zone. The difference between the thickness of the zone as
intersected in the drilling and that sampled in the trench is attributable to
the fact that the zone dips shallowly--the channel samples therefore somewhat
exaggerate the thickness of the zone.
The aim of this
small-scale drill program was to test the down-dip potential of the Middle
Finger Lake zone and its coincident geochemical and IP chargeability anomalies
in the immediate vicinity of the Middle Finger Lake zone trench. The zone is
otherwise poorly-exposed, and the program has therefore tested only a very
limited portion of the coincident anomalies, which can be traced continuously
from the area of trenching for nearly a kilometer along strike, and which are paralleled
by anomalous zones of broadly similar character to the southwest and northeast.
Mineralization at the
Middle Finger Lake zone consists of variably sulphide-infused well-foliated
fine-grained quartzofeldspathic metasedimentary rocks. The sulphide-rich zones
are typically cored by decimetre-scale boudinaged quartz-carbonate-tourmaline
veins, with which the most abundant sulphides and the best gold grades are
closely associated. The veins are richer in quartz toward the center, and the
quartz is intergrown with calcite. Calcite increases in proportion toward the
vein margins, and there it occurs in close association with tourmaline and with
sulphides. Pyrrhotite is typically the most abundant overall sulphide in the
zones, and is commonly intimately intergrown with tourmaline near vein
margins. Gold grades appear to be most closely associated with arsenopyrite,
which is typically most abundant in the immediate selvages of the
quartz-carbonate-tourmaline (pyrrhotite) veins. Local pyrite and chalcopyrite
are also present, and the host rocks are strongly chlorite- and
sericite-altered, as well as locally intensely veined by foliaform calcite
veinlets. The mineralizing event appears to be pre-kinematic.
The Pukaskwa property is
located 50 kilometres west of Wawa, Ontario, less than 20 km northwest of
Wesdome’s Eagle River Mine, which has produced approximately 600,000
ounces gold since 1995. The property, which consists of a belt of 55 contiguous
unpatented mining claims spanning a length of over 13 km, also lies 20 km
southwest of the formerly-producing Magnacon mine, in which Windarra holds an
interest. Like the Pukaskwa property, the Magnacon properties lie along the
highly prospective Mishibishu gold belt.
The field and analytical
data described in this release has been reviewed and approved by C.J. Greig,
M.Sc. P.Geo., a Qualified Person as defined by National Instrument 43-101. A
quality assurance/quality control program is in place for the Pukaskwa
drilling, with the insertion of blank samples in the field, and standards in
the lab. All samples from the drilling program were split using a diamond saw,
with one half of the core submitted to ALS Chemex Laboratories of Thunder Bay,
Ontario and North Vancouver,
B.C. for preparation and analysis, respectively. All gold analyses reported in
this release were completed using standard fire assay procedures. Samples
returning significant gold values have been re-submitted for metallic screen
assays, with results of this work pending.
On behalf of the Board of
Windarra Minerals Ltd.
“John Pallot”
President
The TSX
Venture Exchange has not reviewed and does not accept responsibility for the
Susan Tessman
Corporate Secretary
Messina Minerals Inc.,
Windarra Minerals Ltd.,
Westward Explorations Ltd.
2300-1066 W.
Hastings St.
Vancouver, B.C. V6E 3X2
Ph: 604.688.1508
Fx: 604.601.8253