Berkeley Resources Limited
15 January 2007
15 January 2007
FIRST DRILL HOLE CONFIRMS RETORTILLO MINERALISATION
Including 13.8m grading 0.216% U3O8 from 19.4m
The Directors of Berkeley Resources Limited (AIM: BKY.L) are pleased to advise
the results of the first confirmatory drill hole at the Company's Retortillo
deposit in Salamanca Province, Spain.
Vertical diamond core hole RTO-001 is located within the best area of
mineralisation, approximately equidistant from four diamond holes drilled by
previous explorers on a 50m x50m grid. It was completed to a depth of 97m
immediately prior to the Christmas/New Year break.
Assay results include the following intersections at a 0.02% U3O8 cut-off:
19.4m to 33.2m - 13.8m @ 0.216% U3O8
46.8m to 52.0m - 5.2m @ 0.073% U3O8
67.0m to 73.0m - 6.0m @ 0.095% U3O8
These results are an encouraging start to the validation of previous diamond and
RC drilling of the deposit and appear to better those from the surrounding four
holes. However, they should not be considered representative of mineralisation
throughout the deposit.
SUBSTANTIAL FURTHER DRILLING IS REQUIRED TO TEST THE EXTENT, CONTINUITY AND
TENOR OF MINERALISATION, AND THE DIRECTORS STRONGLY ADVISE CAUTION IN
INTERPRETING THESE INITIAL RESULTS.
A drill plan follows setting out the location of hole RTO-001, as well as
mineralised and non-mineralised diamond and RC holes from previous exploration
at Retortillo. Hole details include:
• Collar Coordinates: 719318mE, 4520538mN 743mRL (UTM 29N ED50 datum)
• Inclination: -90degrees
• Final Depth: 97.0m
• Water Table: 20.3m
The hole was geologically and radiometrically logged before being sampled (1/4
core) at approximately 1m intervals (intervals varying from 0.5 to 1.5m based on
geology) for the zone between 1.6m and 97m downhole. Duplicate 1/4 core samples
and blank samples were included in the samples which were assayed for total
uranium by the Delayed Neutron Count (DNC) method at Activation Laboratories
Limited in Ontario, Canada.
Measured recoveries were good and averaged 92% over the entire hole.
The geology consisted of:
0.00 - 1.60m Tertiary cover
1.60 - 16.60m Strongly weathered shales
16.60 - 39.80m Weathered grey shales with FeOx throughout + py from
24.6m. Visible torbenite, meta-autinite, pitchblende
on fractures
39.80 - 62.00m Grey-black sheared (sericite) shales with disseminated
and vein pyrite - fault at 52.0 - 53.7m
62.00 - 67.00 Late fractured grey-black shales as above
67.00 - 88.00m Competent shales with quartz-chlorite +/- pyrite
88.00 - 97.00m As above with late fractures and talc on fractures
The mineralisation appears to be associated with current and past water tables
and with the more carbonaceous shale units.
Subsequent to the New Year, two diamond drill rigs are now operating, with over
5,000m of drilling planned at and around Retortillo in this campaign.
The technical content of this report has been reviewed and approved by Mr
Peter Ellis, a Member of The Australian Institute of Mining and Metallurgy and
an employee of Berkeley Resources Limited. Mr Ellis has sufficient experience
which is relevant to the style of mineralisation and type of deposit under
consideration and to the activity which he is undertaking to qualify as a
Competent Person as defined in the 2004 Edition of the 'Australasian Code for
Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Mr Ellis
consents to the inclusion in the report of the matters based on his information
in the form and context in which it appears.
Enquiries - Matt Syme Telephone: +61 417 906 717
Managing Director Facsimile: +61 8 9322 6558
Email: info@berkeleyresources.com.au
This information is provided by RNS
The company news service from the London Stock Exchange
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