VANCOUVER, BRITISH COLUMBIA, Apr 4, 2007 (CCNMatthews via COMTEX News Network) --
Riverstone Resources Inc. (the "Company") (TSX VENTURE:RVS) is pleased to report the results from the first seven holes of the recently completed Reverse Circulation ("RC") drilling program on the Kao Exploration Permit in Burkina Faso, West Africa. Six of the first seven drill holes returned multiple high-grade gold zones within a broad lower grade envelope. These higher grade gold zones were discovered during two Rotary Air Blast ("RAB") drilling programs conducted by the Company in August and October of 2006 and appear to have strike lengths ranging from 200 to 500 metres. The lower grade envelope has a minimum width of 350 metres and has been traced over a strike length of at least 1,100 metres.
Significant assay results are presented in the table below. It should be noted that intervals reported are drilled widths, which may not represent true widths of the mineralized zones.
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FROM TO CORE INTERVAL GRADE
HOLE NO. (metres) (metres) (metres) (g/t)
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KAO-07-RC-001 0 126 126 0.33
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including 40 42 2 1.10
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and 58 66 8 1.20
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and 82 88 6 1.08
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KAO-07-RC-002 0 102 102 0.54
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including 2 6 4 1.52
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and 18 30 12 1.69
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and 36 42 6 0.90
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and 72 74 2 1.11
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and 82 84 2 1.08
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KAO-07-RC-003 No significant intercepts
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KAO-07-RC-004 0 96 96 0.59
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including 14 38 24 1.36
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and 54 64 10 1.26
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KAO-07-RC-005 0 138 138 0.29
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including 14 26 12 0.86
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and 14 16 2 1.30
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and 22 26 4 1.09
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and 62 64 2 1.30
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KAO-07-RC-006 0 102 102 0.45
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including 0 30 30 1.22
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or 2 18 16 1.62
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KAO-07-RC-007 0 108 108 0.38
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including 10 12 2 1.14
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and 28 30 2 1.48
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and 84 92 8 1.26
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The first seven RC drill holes were drilled on the same line (see attached figure) and all holes were angled at -60 degrees to undercut gold values identified in the RAB drilling. The RC drilling has confirmed that the near surface gold zones outlined in the RAB drilling extend to depth, and that gold values appear to be present within a silicified diorite. Each drill hole (except KAO-07-RC-003) intersected up to four zones of significant gold mineralization, over drilled widths of up to 34 metres. It should be noted that the entire lengths of the holes are anomalous in gold.
"We are very pleased with these results," commented M.D. McInnis, President of Riverstone Resources. "The footprint of this target is large and the drilling results suggest a good potential for a large, bulk mineable deposit."
The Kao RC program totaled 2,168 metres in 20 drill holes. The company is currently undertaking an aggressive exploration program on seven of its 13 properties in Burkina Faso. Mapping, sampling and approximately 9,000 metres of RAB and 1,800 metres of RC drilling are underway on properties in the Bissa area in addition to the work undertaken at Kao. The company expects to be releasing results from all of these programs over the next several weeks.
The Company maintains a rigorous quality control program involving the use of repeat assays, check assays at independent labs, and the use of verifiable blanks and standards from an accredited Canadian laboratory. All RC samples were assayed using standard fire assay with atomic absorption techniques, at the independent Abilab Burkina SARL laboratories in Ouagadougou, Burkina Faso, which is part of the ALS Chemex group.
For further information about the Company and its activities in Burkina Faso, please refer to the Company's website at www.riverstoneresources.com and on www.sedar.com.
ON BEHALF OF THE BOARD
Michael D. McInnis, P.Eng., CEO & President
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.
To view attached figure please click on the following link: https://www.ccnmatthews.com/docs/rvs0404.pdf
SOURCE: Riverstone Resources Inc.
Riverstone Resources Inc. Michael D. McInnis President (604) 801-5020 (604) 801-6075 (FAX) Email: info@riverstoneresources.com Riverstone Resources Inc. Raju Wani Investor Relations (403) 240-0555 Email: info@riverstoneresources.com Website: www.riverstoneresources.com
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