Drilling Results

RNS Number : 7656I

Berkeley Resources Limited

18 March 2010

 



18 March 2010

BERKELEY RESOURCES LIMITED

Final Confirmatory Drilling Results at the

Salamanca Uranium Project

Berkeley is pleased to announce the completion of the first phase confirmatory drilling program at the Águila and Alameda areas and to release the final results from the program at the Alameda South deposit. 

A total of 19 diamond holes (1,667m) were drilled at the Alameda South deposit, all of which intercepted their intended targets.  The thickness and grade of the intercepts continues to provide a high level of confidence in the historical drilling information upon which Berkeley has based it's exploration targets (Alameda exploration target is 25.5 - 29 million tonnes @ 450 - 500 ppm U₃O₈). It is anticipated that a Mineral Resource Estimate will be completed for the Alameda area by the end of the 1^st Quarter.

The notable results presented in Table 1 are based on down-hole gamma logging undertaken by Berkeley and are shown as equivalent U₃O₈ ppm grades or eU₃O₈. 

Table 1 - Notable Drill Hole Intersections

Hole ID	From	To	Interval	eU3O8
	(m)	(m)	(m)	(ppm)
ASD-001 *	3.1	6.3	3.2	5,904
ASD-002 *	3.8	51.3	47.5	2,120
ASD-003 *	6.2	33.0	26.8	495
ASD-003 *	44.2	81.0	36.8	539
ASD-005	49.6	58.1	8.5	930
ASD-005	64.4	68.3	3.9	1,168
ASD-007	51.9	56.0	4.1	1,146
ASD-008	76.3	80.2	3.9	823
ASD-011	69.3	83.5	14.2	1,606
ASD-012	54.0	61.4	7.4	1,584
ASD-015	11.3	17.1	5.8	1,110

                        * Previously announced on 22^nd January, 2010

A full list of the Alameda South drilling results are included at the end of this announcement in Table 2.

Enquiries -       Managing Director:                 Ian Stalker       Tel:  [phone]  

                        RBC Capital Markets:            Martin Eales    Tel:  [phone]

NOTE - The Alameda deposits have been extensively explored by ENUSA but are not classed as Mineral Resources.  The quantity and grade of Berkeley's exploration targets for the Alameda deposits are conceptual in nature and based on a review of the available data on the projects to date.  As there has been insufficient exploration to estimate a Mineral Resource in accordance with the JORC Code, it is uncertain whether further exploration will result in the determination of a Mineral Resource.

Alameda South Deposit

The Alameda South deposit is located 12km west of the ENUSA Quercus Plant and is accessible via sealed highway and a sealed secondary road.

Uranium mineralisation at Alameda South is hosted by a deformed sequence of regionally and thermally metamorphosed fine grained sandstones and siltstones. In addition, granitic sills and shallow dipping dykes were intruded after the main folding and metamorphism events followed by the uranium mineralisation. The entire sequence has been affected by a later brittle deformation event.

Uranium mineralisation occurs in a complex network of moderately to steeply dipping brittle structures (veins, faults, fractures and along bedding contacts) as a result of a low temperature hydrothermal event.  The mineralised zones commonly have sharp boundaries, separating mineralised structures from poorly mineralised host rock.

All of the intersections correlated well in both grade and thickness with nearby vertical historical diamond drill holes. 

Data Verification

120 half metre full core samples from holes ASD-001 and ASD-002 were sent to ALS-Chemex in Vancouver for chemical analysis (XRF) to compare with the e-grade calculations. The gamma and the assay results compare well.  There is not an exact match due to the fact that the radiometric log measures a volume that can be up to 50 times larger than a typical drill core and thus gives a more representative sample.

A full version of this announcement including images can be downloaded from Berkeley's website at www.berkeleyresources.com.au.

Table 2 - Alameda South Drill Hole Intersections

Hole ID	Easting	Northing	Elevation	Depth	Azimuth	Dip	From	To	Interval	eU3O8
	(m)	(m)	(m)	(m)	(º)	(º)	(m)	(m)	(m)	(ppm)
ASD-001 1	689176	4500731	733.4	51.09			3.1	6.3	3.2	5,904
							12.7	14.9	2.1	628
ASD-002 1	689224	4500722	736.5	62.65			3.8	51.3	47.5	2,120
ASD-003 1	688980	4500779	729.7	123.10			6.2	33.0	26.7	495
							44.2	81.0	36.8	539
							94.6	110.5	15.8	480
ASD-004 1	689137	4500896	743.8	80.11	104	-60	20.0	24.2	4.2	1,433
							32.6	35.8	3.2	502
							44.4	53.3	8.9	451
ASD-005	689038	4500919	741.3	137.50	104	-60	26.9	29.2	2.3	351
							32.3	33.8	1.5	404
							49.6	58.1	8.5	930
							64.4	68.3	3.9	1,168
							108.5	109.7	1.2	1,341
ASD-006	689234	4500873	748.2	64.10	104	-60	22.0	23.6	1.7	346
							34.5	35.6	1.2	459
ASD-007	689186	4500885	745.7	88.10	104	-60	51.9	56.0	4.1	1,146
ASD-008	689028	4500768	729.9	107.20			20.0	22.3	2.3	237
							25.8	28.6	2.9	340
							31.6	32.7	1.1	681
							34.7	38.4	3.7	432
							40.0	43.3	3.3	238
							47.7	48.8	1.1	830
							76.3	80.2	3.9	823
ASD-009	689139	4501126	750.7	110.55			38.0	43.3	5.2	428
							55.5	56.9	1.4	1,163
							60.0	61.6	1.6	302
							85.9	87.4	1.4	3,427
ASD-010	689238	4501106	757.4	118.48			42.2	43.4	1.2	329
ASD-011	689084	4500910	742.1	99.60	104	-60	48.9	51.5	2.6	277
							55.0	56.5	1.5	414
							69.3	83.5	14.2	1,606
ASD-012	689187	4501114	753.7	123.60			35.8	40.3	4.5	478
							44.6	48.0	3.4	409
							49.1	50.4	1.3	598
							54.0	61.4	7.4	1,584
							75.0	76.5	1.5	549
							77.1	78.4	1.3	456
							80.2	82.0	1.7	561
ASD-013	689552	4501245	759.5	61.40			26.5	28.0	1.5	1,083
							30.7	33.0	2.2	268
ASD-014	689544	4501213	758.7	65.00			30.3	34.9	4.7	388
							36.7	37.7	1.0	689
ASD-015	689047	4501714	730.4	70.10			5.7	6.7	1.1	423
							11.3	17.1	5.8	1,110
							21.7	23.3	1.6	2,537
							39.3	40.4	1.1	1,139
ASD-016	689107	4501747	732.8	62.10			0.2	8.4	8.2	550
ASD-017	689533	4501164	754.7	71.17			25.0	29.9	5.0	305
							32.6	33.6	1.1	798
							41.4	42.7	1.3	614
							45.0	48.1	3.2	556
							49.2	50.6	1.5	358
ASD-018	689105	4501133	749.1	120.00			48.3	52.7	4.4	337
ASD-019	688998	4501672	731.6	51.34			18.9	20.5	1.6	368
							22.6	25.0	2.4	255
							37.3	39.1	1.8	264

1.   Previously announced on 22^nd January, 2010

2.   Holes with no dip and azimuth specified are vertical

3.   Drill intersections are calculated using a 200ppm lower cut-off with a minimum 1m intersection

4.   Depth figures are rounded, so differences may occur

Notes

The uranium grades reported in this release are annotated with a sub-prefix "e" because they have been reported as uranium equivalent grades derived from down-hole gamma ray logging results and so they should be regarded as approximations only. 

The Berkeley drill holes were logged with a GeoVista total count gamma tool. The gamma tool was calibrated in Adelaide at the Department of Water, Land and Biodiversity Conservation in calibration pits constructed under the supervision of CSIRO. The various calibration factors were calculated by David Wilson BSc MSc MAusIMM from 3D Exploration Ltd based in Perth, Western Australia. 

Drill hole co-ordinates are in UTM 29 ED 50 Datum grid and have been surveyed using a DGPS.

Drill intersections are calculated using a 200 ppm eU₃O₈ lower cut-off with a minimum 1 metre intersection.

As a check on the down-hole gamma logging data, hand held scintillometer readings were taken along the mineralised sections of the core.  These showed good correlation with the down-hole gamma readings and were used to identify sections which may have been affected by radon.  The down-hole gamma results also confirmed visual observations of significant uranium mineralisation in all of the holes.

The information in this report that relates to Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Mr. Ross Corben, who is a Member of The Australian Institute of Mining and Metallurgy and an employee of Berkeley Resources Limited. Mr. Corben 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. Corben consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

 

 

END

 

 

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