Drilling Report
2007年9月6日 - 4:03PM
ＲＮＳを含む英国規制内ニュース （英語）
RNS Number:3885D
Berkeley Resources Limited
06 September 2007
6 September 2007
STOCK EXCHANGE ANNOUNCEMENT
NEW DISCOVERY OF URANIUM MINERALISATION IN SALAMANCA, SPAIN
The Directors of Berkeley Resources Limited (AIM: BKY.L) are pleased to announce
a new discovery of uranium mineralisation at Santidad, 2km northwest of the
Company's main Retortillo deposit. It has resulted from drill testing of
radiometric anomalies in an area untouched by historical exploration within the
Salamanca license area.
An ongoing campaign of reverse circulation drilling at 50m intervals, along five
traverses ranging from 65m to 200m apart, has intersected significant uranium
mineralisation in 14 vertical drill holes over a strike length of 500m and a
width of approximately 150m. This essentially flat lying mineralised zone is
open along strike in both directions where significant untested radiometric
anomalies are apparent, both to the southeast, towards the Retortillo deposit,
and to the northeast, up to the limit of Berkeley's ground radiometric survey.
Ground radiometric coverage is being extended along strike for a further two
kilometres to the northeast.
The mineralisation is shallow, with thicknesses ranging up to 39m and grades
varying from 200-1320ppm U3O8. The 11 holes for which assays and downhole
radiometrics are available, have average intersection widths of 18m at 0.034%
U3O8 (200ppm cut off), and average overburden thicknesses of only about 9.5m. A
table of results to date is appended and notable intersections include:
* 39m from 13m at 0.044% (including 9m at 0.132% eU3O8) in SANR 028
* 30m from 5m at 0.044% (including 10m at 0.077% U3O8) in SANR 007
* 21m from surface at 0.039% (including 8m at 0.059% U3O8) in SANR 008
* 27m from 13m at 0.033% (including 11m at 0.050% eU3O8) in SANR 023
* 38m from 9m at 0.020% (including 8m at 0.049% eU3O8) in SANR 027
In addition, scintillometer readings on drill chips from holes SANR 032, 033 and
034, on the most south-easterly drill traverse, indicate continuation of the
mineralisation. These holes have not yet been assayed, or logged with
Berkeley's downhole radiometric instrument.
The geology at Santidad is similar to Retortillo, with host rocks of Ordovician
grey-black shales, bounded to the southwest by sub-cropping to outcropping
quartzites. The shales have a sub-vertical penetrative S1 cleavage with an
orientation of 120 to 1400. Uranium mineralisation starts between 0 and 20m
below the surface and can extends up to about 50m below surface; thin granitic
intrusions occur in some mineralised holes. The dominant uranium minerals appear
to be secondary torbernite and autunite. A thin cover of quartzite scree and/or
the remnants of Tertiary cover are common, above a thin, weak weathering
profile, 1-5m thick.
All holes were drilled with a face sampling hammer and geologically and
radiometrically logged before being sampled (1m samples obtained by splitting
the entire dust collected from the cyclone). Sample weights were consistent with
expectations and little water was encountered. Holes lacking downhole
radiometric anomalies were not sampled, except for one check hole. Duplicate and
blank samples were included in all batches assayed for total uranium by the
Delayed Neutron Count (DNC) method at Activation Laboratories Limited in
Ontario, Canada.
Following comparison of chemical assays and downhole radiometrics for holes
SANR 007, 008 and 009, radiometric equivalent uranium grades have been
calculated for all subsequent intersections by Berkeley's consultant, Roger
Murphy, the former Chief Geologist of the Rossing uranium mine.
These early encouraging results indicate that a substantial strike length of
favourable stratigraphy remains to be tested at Santidad. Whilst results to date
are very significant when considered in the context of the JORC-compliant
inferred resource of 11.9m lbs of U3O8 at an average grade of 723ppm at the
nearby Retortillo and Zona 7 deposits, continued success at Santidad will have
the potential to strongly influence development strategies within the Salamanca
license area.
Drilling is continuing, with 1 RC and 2 diamond rigs working at Santidad and
Retortillo.
The information in this report that relates to Exploration Results, Mineral
Resources or Ore Reserves is based on information compiled by Mr Peter Ellis,
who is a Member of The Australian Institute of Geoscientists and a consultant 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 - Managing Director: Matt Syme Telephone: +61 417 906 717
Email: info@berkeleyresources.com.au
TABLE 1 - Santidad Drill Results
HOLE ID UTM UTM North RL Inclination End of Minimum Intersections > 200ppm U3O8
East (Approx) Hole
From To Interval eU3O8 % U3O8 %
SANR-001 716,296 4,522,964 756 -90 50.00 0.00 9.00 9.00 0.0359
10.00 11.00 1.00 0.0314
SANR-005 716,270 4,522,906 764 -90 50.00 0.00 4.00 4.00 0.0526
8.00 9.00 1.00 0.0266
39.00 40.00 1.00 0.0235
SANR-007 716,512 4,522,702 770 -90 60.00 5.00 35.00 30.00 0.0438
5.00 9.00 4.00 0.0220
12.00 14.00 2.00 0.0247
15.00 16.00 1.00 0.0522
17.00 20.00 3.00 0.0638
21.00 31.00 10.00 0.0770
32.00 33.00 1.00 0.0314
34.00 35.00 1.00 0.0236
38.00 39.00 1.00 0.0292
45.00 46.00 1.00 0.0336
SANR-008 716,543 4,522,748 760 -90 50.00 0.00 21.00 21.00 0.0394
SANR-009 716,570 4,522,793 751 -90 50.00 4.00 5.00 1.00 0.0205
6.00 7.00 1.00 0.0218
SANR-022 716,597 4,522,704 761 -90 50.00 9.00 13.00 4.00 0.0260
29.00 34.00 5.00 0.0310
SANR-023 716,562 4,522,632 769 -90 69.00 13.00 40.00 27.00 0.0330
22.00 33.00 11.00 0.0500
SANR-024 716,541 4,522,620 778 -90 60.00 21.00 29.00 8.00 0.0300
21.00 23.00 2.00 0.0710
SANR-027 716,491 4,522,817 770 -90 57.00 9.00 47.00 38.00 0.0200
14.00 22.00 8.00 0.0490
SANR-028 716,461 4,522,766 778 -90 57.00 13.00 52.00 39.00 0.0440
19.00 28.00 9.00 0.1320
SANR-029 716,446 4,522,724 778 -90 54.00 30.00 34.00 4.00 0.0210
SANR-032 716,748 4,522,609 765 -90 60.00
SANR-033 716,642 4,522,575 771 -90 60.00
SANR-034 716,690 4,522,660 760 -90 50.00
SANR-035 716,610 4,522,530 780 -90 In
progress
This information is provided by RNS
The company news service from the London Stock Exchange
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