FINAL ASSAYS FROM WEST SIDE SEDIMENT
HOSTED MINERALIZATION; PRIORITY EAST SIDE ASSAYS PENDING
Vancouver,
B.C. (January 22, 2008) Roxgold Inc. (TSX.V: ROG) has received final fire assay results from trenching
and diamond drilling on the West Side of the TJ Ridge project. Mineralization
on the West Side is hosted with in quartz veins and quartz stock-work zones
related to graphitic shear zones hosted by sedimentary units of the Bowser Basin
formation. This mineralization is interpreted to be associated with, but distal
to, the intrusive hosted mineralization encountered on the East
Side of the property in diamond drill holes 07-14 through 07-18
and is therefore a second priority target.
The initial sample
protocol was to complete an ICP MS (1DX 15 gram) geochemical analysis on all
samples and to fire assay all samples reporting in excess of 1,000 parts per
billion (“ppb”) gold. However, due to volume related delays at the
assay lab and variability between fire assay and geochem results with fire
assays yielding systematically higher gold values than geochem results, all
drill core samples from both the East and West Side
were fire assayed.
The Company has received
initial geochem results from the high priority intrusive hosted mineralization
on the East Side of the property that
indicates mineralized sections of the intrusive are strongly anomalous in
gold. The Company will release complete fire assay results for the priority East Side target when they are received and compiled,
which is expected to be within seven to ten days.
Trenching
Prior to the 2007 program
there was no bedrock exposure in the areas targeted for exploration. Trenching
on the West Side focused on soil geochemistry anomalies
and encountered overburden generally less than two meters in depth. The
exposure of bedrock mineralization underlying the soil geochemistry anomalies soil
geochemistry has proven an effective and reliable exploration method on the TJ
Ridge project.
Trenching intermittently
tested the W1 zone over a strike length of 1200 meters. The W1 zone lies on
the western flank and parallel to a prominent linear EM conductor associated
with graphitic horizons. In general, the strongest mineralization appears to
be in close proximity to the west flank of the conductor with discontinuous
parallel gold soil anomalies directly overlying the conductor. The soil
geochemistry anomaly and mineralization directly overlying
the EM conductor are
referred to as the W2 anomaly. Significant results from this trenching are as
follows:
Zone |
Location
|
Sample
Number(s)
|
width
(m)
|
Pb
PPM
|
Zn
PPM
|
Ag
g
/ t
|
Au
g
/ t
|
Au
Eq
g
/ t (1)
|
W1
|
19800 N –
21000E
|
671042-46
|
5.5
|
325
|
361
|
3.1
|
1.06
|
1.11
|
W1
|
19700 N –
21000E
|
671081-84
|
4
|
330
|
745
|
4.5
|
1.24
|
1.32
|
W1
|
19700 N –
21000E
|
671093-105
|
21.5
|
409
|
1,253
|
10.2
|
1.05
|
1.24
|
W1
|
including
|
671098&100
|
2
|
3,739
|
10,814
|
102
|
10.25
|
12.10
|
W1
|
19600 N –
21000E
|
671136
|
1.5
|
695
|
1,555
|
2.3
|
2.48
|
2.52
|
W1
|
19600 N –
21000E
|
671144-154
|
22.7
|
474
|
2,102
|
5.0
|
1.32
|
1.41
|
W1
|
including
|
671148-54
|
7
|
640
|
5,750
|
10.9
|
3.07
|
3.26
|
W1
|
19600 N –
21000E
|
671197-203
|
8.8
|
1,298
|
607
|
8.7
|
0.62
|
0.78
|
W1
|
including
|
671201-02
|
1.1
|
>10,000
|
3,968
|
65.3
|
4.73
|
5.92
|
W1
|
18350 N –
21300E
|
671288-89
|
2.6
|
137
|
632
|
7.5
|
1.13
|
1.26
|
W1
|
18400 N –
21300E
|
671291
|
0.60
|
19
|
36
|
<2
|
0.61
|
0.61
|
W1
|
18600 N –
21300E
|
671294
|
0.85
|
23
|
23
|
<2
|
1.7
|
1.70
|
W1
|
18600 N –
21300E
|
671295
|
0.30
|
109
|
113
|
4
|
1.08
|
1.15
|
W2
|
19200 N –
21400E
|
671300
|
1.0
|
525
|
42
|
2
|
2.05
|
2.09
|
W2
|
19200 N –
21400E
|
671306
|
0.40
|
469
|
373
|
21
|
14.05
|
14.43
|
(1) Au Eq includes only gold and silver values based upon
55 grams of silver being equivalent to one gram of gold
The EM conductor
associated with both the W1 and W2 zones and the coincident soil geochemistry
anomaly can be traced over 2.4 kilometers of strike length. The majority of
the exploration was undertaken towards the northern end of the W1 anomaly. A
series of short trenches covering about 250 meters of strike length were completed
about 1,100 meters south of this area. These trenches were excavated at the
very end of the 2007 exploration program and were only hastily sampled. The W2
anomaly was tested by trenching in only one location approximately 600 meters
south of the 19800 trench.
Drilling
The initial drilling was
completed coincident with the trenching and prior to the receipt of analytical
results or completion of the airborne geophysical survey. After the logging of
drill holes 07-01 and 07-02 and the mapping of trenches 19800N, 19700N and
19600N the orientation of stratigraphy was better understood and further
trenches and drilling were re-oriented to better cross cut structure. To
further the geologic understanding, holes 07-03 through 07-13 were completed
along a section undercutting portions of the projected mineralization
encountered in trenches. While narrow zones of quartz vein related
mineralization were encountered in all drill holes, holes 07-02 and 07-05
yielded the most significant intersections. True width is estimated to be
approximately 90% of the core length.
|
from
meters
|
to
meters
|
Core width
meters
|
Pb
PPM
|
Zn
PPM
|
Ag
g / t
|
Au
g / t
|
Au Eq
g / t (1)
|
ROX-07-02
|
8.75
|
14.40
|
5.65
|
47
|
128
|
0.90
|
1.18
|
1.19
|
including
|
9.75
|
12.66
|
2.91
|
82
|
176
|
1.34
|
2.26
|
2.28
|
|
24.80
|
36.90
|
12.10
|
63
|
267
|
0.63
|
0.46
|
0.47
|
including
|
28.30
|
30.40
|
2.10
|
57
|
482
|
1.05
|
2.43
|
2.44
|
ROX-07-04
|
65.20
|
66.20
|
1.00
|
296
|
3,240
|
1.90
|
1.92
|
1.95
|
ROX-07-05
|
52.47
|
62.81
|
10.34
|
2,069
|
3,445
|
9.26
|
0.98
|
1.15
|
including
|
52.47
|
55.54
|
3.07
|
5,564
|
7,627
|
22.26
|
2.11
|
2.51
|
and
|
61.00
|
62.81
|
1.81
|
2,324
|
6,584
|
7.29
|
1.84
|
1.98
|
|
110.30
|
111.35
|
1.05
|
790
|
12,584
|
76.65
|
0.08
|
1.48
|
|
137.10
|
138.16
|
1.06
|
341
|
3,453
|
19.08
|
0.58
|
0.93
|
Holes 07 – 1
through 07-13 were completed on the West Side
of the property. Holes not reported generally contained either narrow or low
grade zones of mineralization or did not yield significant results. While the
West Side anomalies are a viable exploration target given some of the grades
encountered and the size potential based upon the EM and soil geochemistry, the
primary exploration focus for the 2008 exploration season will be the intrusive
hosted gold/silver mineralization encountered on the East
Side of the TJ Ridge property in drill holes 07-14 through 07-18
“The initial
trenching and drilling on the property has confirmed that gold-silver
mineralization underlies the soil anomalies, which together with the associated
EM anomalies has defined a significant area of interest some 2,200 m long and
500 m wide,” commented Alan Raven President of Roxgold. “Only
small portions of this anomaly were explored during the 2007 program leaving
its potential largely untested. While additional work will be completed on the
West Side in 2008, the East Side intrusive
hosted mineralization remains a priority.”
Trench
samples were taken with a pneumatic (hydraulic) breaker attachment. Drill
core was sawn in half with one half retained for reference and the second half sent
for analysis with standards and blanks were systematically included. Acme
Analytical Labs sample preparation facility in Smithers BC prepped and prepared
a pulp sample which was then forwarded to Acme Analytical Labs in Vancouver for
ICP MS (1DX 15 gram)
geochemical analysis. All drill
core and selected trench samples were sent for fire assay. Independent
consulting geologist Brett LaPeare, MAusIMM, a qualified person as defined by
National Instrument 43-101, has reviewed the information
contained herein.
Roxgold Inc.
Per: Alan Raven
President
The TSX Venture Exchange has not reviewed, and does not accept
responsibility for the accuracy or adequacy of this release