DISCOVERY OF
MINERALIZED INTRUSIVE ON TJ RIDGE PROJECT; POTENTIAL FOR BULK
TONNAGE GOLD DEPOSIT
Vancouver, B.C. (January 29,
2008) Roxgold Inc. (TSX.V: ROG) has received final fire assay results
from diamond drill holes ROG-07-14 through ROG-07-18 completed on the East Side
of the TJ Ridge project. These holes confirm the presence of two
intrusive units: an altered and variably mineralized monzonite unit and
cross-cutting feldspar porphyry dykes. The monzonite unit is the target
stratigraphy, encountered in three of five holes, all of which intersected variable
amounts of arsenic- zinc- lead- silver-gold, mineralization. Holes
ROG-07-17 and ROG-07-18 were drilled through the monzonite into the underlying
altered sediments. ROG-07-16, the first to encounter the monzonite hosted
mineralization, was terminated in altered monzonite carrying anomalous gold and
silver values and associated pathfinder elements. Anomalous gold + silver
is associated with arsenopyrite - pyrite- sphalerite - galena mineralization
occurring in sub-parallel sheeted quartz veins and in areas where the sheeted
quartz veining is more pervasive, as pyrite - arsenopyrite disseminations
within the monzonite. Given the early stage of the discovery and
mineralization�s relationship to significant EM anomalies in the immediate
vicinity has yet to be established, the potential for the discovery of a
significant bulk tonnage deposit is believed strong particularly given all
monzonite intersected in the three holes (total of 317 metres)
returned an average grade of 4.9 g/t silver and 0.18 g/t gold or
0.27 g/t gold equivalent. Significant results are as follows:
|
from
metres
|
to
metres
|
Core
width m(1)
|
Pb
ppm
|
Zn
ppm
|
Ag
g / t
|
Au
g / t
|
Au Eq
g / t (2)
|
ROX-07-14
Collar
19082N 22408E; Dip -45o Az 090o
|
altered sediments
|
119.95
|
124.50
|
4.55
|
2,270
|
362
|
54
|
0.89
|
1.87
|
ROX-07-15
Collar
19082N 22408E; Dip -70o Az 090o
|
altered sediments/vein
|
93.10
|
105.20
|
12.10
|
1,310
|
2,789
|
46
|
0.92
|
1.76
|
including
|
93.10
|
96.00
|
2.90
|
2,244
|
3,857
|
41
|
0.64
|
1.39
|
and
|
103.10
|
105.20
|
2.10
|
3,961
|
9,568
|
188
|
4.26
|
7.68
|
ROX-07-16
Collar
19135N 22290E; Dip -45o Az 120o
|
monzonite
|
194.65
|
224.02
|
29.37
|
931
|
1,438
|
6
|
0.53
|
0.64
|
including
|
198.00
|
206.00
|
8.00
|
3,145
|
4,703
|
15
|
1.66
|
1.92
|
including
|
198.00
|
200.00
|
2.00
|
4,286
|
6,433
|
22
|
2.59
|
2.97
|
and
|
201.00
|
202.00
|
1.00
|
1,954
|
3,562
|
10
|
4.76
|
4.94
|
and
|
205.00
|
206.00
|
1.00
|
5,746
|
10,000
|
22
|
1.72
|
2.12
|
ROX-07-17
Collar
19036N 22300E; Dip -45o Az 120o
|
monzonite
|
51.00
|
230.70
|
179.70
|
182
|
378
|
3
|
0.11
|
0.18
|
including
|
156.00
|
221.00
|
65.00
|
332
|
542
|
5
|
0.19
|
0.28
|
including
|
107.00
|
108.50
|
1.50
|
463
|
390
|
27
|
0.93
|
1.42
|
and
|
156.00
|
160.00
|
4.00
|
872
|
1,336
|
8
|
0.80
|
0.93
|
and
|
203.00
|
221.00
|
18.00
|
628
|
947
|
8
|
0.36
|
0.51
|
including
|
219.50
|
221.00
|
1.50
|
326
|
2,330
|
8
|
1.46
|
1.60
|
ROX-07-18
Collar
18958N 22270E; Dip -45o Az 120o
|
monzonite
|
112.85
|
207.00
|
94.15
|
226
|
280
|
8
|
0.15
|
0.29
|
including
|
146.00
|
147.50
|
1.50
|
633
|
339
|
15
|
1.69
|
1.96
|
and
|
162.50
|
164.00
|
1.50
|
5,239
|
1,643
|
29
|
1.96
|
2.48
|
and
|
177.50
|
180.50
|
3.00
|
214
|
176
|
157
|
0.35
|
3.19
|
monzonite
|
245.65
|
256.15
|
10.50
|
819
|
972
|
4
|
0.55
|
0.62
|
and
|
247.65
|
248.65
|
1.00
|
4,215
|
1,910
|
12
|
1.96
|
2.18
|
and
|
252.65
|
254.65
|
2.00
|
1,839
|
3,654
|
11
|
1.78
|
1.98
|
(1) Core widths are estimated to be about 85% of true width (2) Au Eq includes only gold and
silver values based upon 55
grams of silver being equivalent to one gram of gold
with metallurgical recoveries and net smelter returns assumed to be 100 %.
|
ROG-07-14 and 15, the first
holes to test the E1 anomaly, were drilled on section to test a strong and well
defined gold-in-soil geochemical anomaly, intersected strongly altered
sediments with local thin dykes of monzonite and feldspar porphyry.
ROG-07-15, showed a marked increase of feldspar porphyry and monzonite dykes
prior to passing into the altered sediments. One shear related zone with
strongly mineralized quartz veining was encountered near the bottom of
ROG-07-15. ROG-07-16 collared 135 metres WNW of ROG-07-15, intersected
altered sediments, with geochemically anomalous gold-silver, along with lesser
feldspar porphyry dykes prior to intersecting monzonite at a drill depth of 194 metres.
ROG-07-17 was collared approximately 100 metres south of the ROG-07-16 and encountered
51 metres
of feldspar porphyry with minor inter-bedded sediments before intercepting the
monzonite from 51 to 231
metres on the drill stem. ROG-07-18 was collared
approximately 80 metres
southwest of the ROG-07-17 and encountered 113 metres of altered
sediments with lesser feldspar porphyry dykes before intercepting two sections
of monzonite from 113 to 207
metres and 245 to 254 metres on the drill
stem. The altered sediments between these two intervals included two
metres of 7 g/t silver and 1.36 g/t gold and a second two-metre interval
grading 19 g/t silver and 1.03 g/t gold.
Initial petrography indicates
the monzonite has been subjected to retrograde alteration causing it to be
kaolinized and strongly sericite altered. The cause of the alteration of
the monzonite has not been determined, but may be related to the presence of a
later intrusive related event such as the porphyry dykes and/or due to
hydrothermal alteration associated with veining and sulphide
mineralization. Alternatively, the mineralized monzonite may represent a
partially mineralized zone peripheral to a larger system. Additional
petrographic work and isotope analysis is ongoing to determine the genesis of
the intrusive to better understand the alteration and related events.
The monzonite hosted
mineralization encountered to date appears to be on the western flank of a
strong airborne EM conductor. After a short break in the conductor that
parallels regional structure, the strength and size of the EM conductor
markedly increases. This EM conductor, potentially the most significant
EM conductor on the TJ Ridge property lies less than 250 metres south west of
ROG-07-18. Trenching, geophysics surveys (Induced Polarization) and
diamond drilling are planned for this priority area during the 2008 exploration
program.
The Company is in the process
of completing a website upgrade at www.roxgold.com
that will feature an interactive mapping utility that will overlay viewer selected
maps of soil geochemistry, the EM survey and a drill hole plan. This
mapping feature will help viewers better understand the large size of the
priority targets and the potential of the TJ Ridge project. The upgraded
website is expected to be operational in the first or second week of
February.
�The discovery of a previously
unknown, altered, mineralized monzonite is a very significant geological
development that makes the 2007 exploration program a great success,� commented
Alan Raven President of Roxgold. �At this early stage, we do not know
whether the discovery represents a partially mineralized zone peripheral to
larger system, but the spatial relationship to significant gold-silver soil
geochemistry anomalies and EM conductors significantly increases the
exploration potential on the TJ Ridge property. Beyond this priority
target area, many other targets potentially related to monzonite and its
associated mineralization remain untested. This bodes well for further
discovery and with a drill secured and the initial drill pads already
constructed, we look forward to the 2008 exploration program with great
anticipation.�
All 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 samples
were sent for gold 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
Contact:
|
|
Roxgold Inc.
|
|
880 � 580 Hornby Street, Vancouver, BC
|
|
Alan Raven,
President
or
|
Barry Girling
|
604-682-8275
|
604-806-0991 ext 102
|
Email alan@roxgold.com
|
Email barry@roxgold.com
|