Riverstone Expands Kao Main
Zone at Karma
April
7, 2008
Riverstone Resources Inc. (TSXV: RVS, Frankfurt: 3RV)
is pleased to report results from the fourth phase of reverse circulation
("RC") drilling on the Kao Main Zone at its Karma gold project
in Burkina Faso, West Africa. The latest results confirm the
expansion of the gold mineralized zone to the north and northwest. The
known area of the mineralized zone has now been increased to
approximately 800 metres by 400 metres. The zone is still open to further
extension to the north and northwest and at depth to the southeast below
85 vertical metres, which is the limit of the current drilling. ( see
Figure 1 attached)
The Company also drilled RC holes to test soils anomaly B, approximately
3.2 km northeast of the Kao Main Zone. Near-surface intercepts included
1.22 g/t gold over 4 m and 1.31 g/t gold over 6 m. This zone is believed
to represent either the northeastern extension of the Kao Main Zone, or a
separate gold zone within a strong northeast trending gold-in-soils
anomaly that can be traced for in excess of 6 kilometres. (see
Figure 2 attached)
"We are very pleased that drilling continues to expand the
mineralized area in the Kao Main Zone", commented Michael D.
McInnis, President of Riverstone. "Mineralization is still open in
several directions. The next phase of drilling will test for further
extensions in the Kao Main Zone as well as additional gold targets to the
north."
This fourth phase of RC drilling comprised 5,050 metres in 50 holes, most
of which were designed to determine further extensions of the shallow
oxide gold mineralization at the Kao Main Zone in preparation for an
independent resource estimate. Previously reported results from holes 100
to 137 included intercepts of 2.75 g/t gold over 22 m, 1.01 g/t gold over
34 m, 16.7 g/t gold over 12 m, 2.22 g/t gold over 14 m, 1.18 g/t gold
over 26 m, and 1.28 g/t gold over 20 m. (see News Releases dated
February 28, 2008 and March 10, 2008)
Significant results from holes 138 to 150 are summarized in the table
below. All holes were drilled at -60º. Intervals reported are
drilled intercepts, which may not represent true widths of the
mineralized zones.
Hole
Number
|
Zone
|
From
(metres)
|
To
(metres)
|
Hole Interval
(metres)
|
Grade
(g/t Au)
|
KAO-08-RC-138
including
|
Kao Main
|
54
74
|
90
90
|
36
16
|
1.52
2.15
|
KAO-08-RC-145
|
Kao Main
|
72
|
86
|
14
|
0.98
|
KAO-08-RC-146
|
Kao Main
|
20
|
22
|
2
|
1.05
|
KAO-08-RC-147
and
and
|
Kao Main
|
12
34
58
|
14
44
64
|
2
10
6
|
2.08
1.31
1.06
|
KAO-08-RC-148
and
and
and
|
Kao Main
|
42
76
88
98
|
50
82
90
108
|
8
6
2
10
|
0.92
1.20
1.39
0.73
|
KAO-08-RC-150
|
Kao Main
|
36
|
44
|
8
|
0.83
|
KAO-08-RC-142
|
Anomaly "B"
|
14
|
18
|
4
|
1.22
|
KAO-08-RC-144
|
Anomaly "B"
|
20
|
26
|
6
|
1.31
|
Elsewhere on the Karma project, the Company has recently completed
further drilling on the adjacent Goulagou permit, which contains a NI
43-101 compliant indicated resource of 280,000 ounces of gold at a grade
of 1.70 g/t and a further inferred resource of 270,000 ounces of gold at
a grade of 1.49 g/t (see News Release dated October 11, 2007).
Drill results will be released after assays have been received and
confirmed.
The Company maintains a
rigorous quality control program involving the use of repeat assays,
check assays at independent labs, inserted blanks, and the use of
verifiable standards from an accredited Canadian laboratory. All RC
samples were assayed using standard fire assay with atomic absorption
techniques, with samples grading in excess of 2.00 g/t gold re-assayed
with a gravimetric finish, at the independent Abilab Burkina SARL
laboratories in Ouagadougou, Burkina Faso, which is part of the ALS
Chemex group.
Riverstone Resources Inc. is active in gold exploration in Burkina Faso,
West Africa, where the company holds an extensive portfolio of high
quality exploration permits covering 3,500 square kilometres. For
further information about the company and its activities, please refer to
the company's website at www.riverstoneresources.com and
under the Company's profile at www.sedar.com.
ON BEHALF OF THE BOARD
"Michael D. McInnis"
______________________________________
Michael D. McInnis, P.Eng., CEO & President
For further information contact:
The
TSX Venture Exchange does not accept responsibility for the adequacy or
the accuracy of this release.
Paul G. Anderson, P. Geo is a Qualified Person for RVS and has reviewed
and approved the contents of this release.
Certain statements made and information contained in this news release
and elsewhere constitutes "forward-looking information" within
the meaning of the Ontario Securities Act. Forward-looking statements are
subject to a variety of risks and uncertainties which could cause actual
events or results to differ from those reflected in the forward-looking
statements, including, without limitation, risks and uncertainties
relating to the interpretation of drill results and the estimation of
mineral resources, the geology, grade and continuity of mineral deposits,
the possibility that future exploration, development results will not be
consistent with the Company's expectations, accidents, equipment
breakdowns, title matters and surface access, labour disputes, the potential
for delays in exploration activities, the potential for unexpected costs
and expenses, commodity price fluctuations, currency fluctuations,
failure to obtain adequate financing on a timely basis and other risks
and uncertainties, including those described under Risk Factors in each
management discussion and analysis. In addition, forward-looking
information is based on various assumptions including, without
limitation, the expectations and beliefs of management, the assumed long
term price of gold, that the Company will receive required permits and
access to surface rights, that the Company can access financing,
appropriate equipment and sufficient labour and that the political
environment within Burkina Faso will continue to support the development of
environmentally safe mining projects. Should one or more of these risks
and uncertainties materialize, or should underlying assumptions prove
incorrect, actual results may vary materially from those described in
forward-looking statements. Accordingly, readers are advised not to place
undue reliance on forward-looking statements.
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