🕐09.10.09 - 11:21 Uhr
Kalahari Minerals Plc - A New Zone of Mineralisation
Kalahari Minerals plc / Ticker: KAH / Index: AIM / Sector: Mining & Exploration
9 October 2009
Kalahari Minerals plc (Kalahari)
Rossing South - A New Zone of Mineralisation
Kalahari Minerals plc, the AIM listed mining exploration and evaluation group with a portfolio of uranium, copper and base metal interests in Namibia, is pleased to provide an update released by Extract Resources Ltd (Extract or the Company), in which Kalaharis subsidiary, Kalahari Uranium Limited, holds a circa.
40.5% interest.
Kalahari Chairman Mark Hohnen said, "These results, which include 53m @1,616ppm U308, are spectacular, and confirm that a new high grade zone has been discovered on the Rossing South prospect.
With a further zone of mineralisation, Extracts results continue to reinforce our position that Extract has the potential to deliver well in excess of 500 M lb U308.
Kalahari remains fully supportive of the rapid development strategy that Extract has initiated, and we look forward to the additional news flow that these developments will generate.
In particular, Extract has progressed well with the Rossing South Feasibility Study on Zones 1 and 2, and all indications point towards the prospect supporting one the worlds largest uranium mines, potentially rivalling the scale of the Olympic Dam mine, and it being capable of producing 15 Mlbs of U3O8 per year."
Extract announcement:
Rossing South - A New Zone of Mineralisation
South Perth, Western Australia - October 9, 2009 - Extract Resources ("the Company") today announced confirmation of a new zone of uranium mineralisation at Rossing South.
Highlights:
* A new zone of uranium mineralisation has been discovered on the western limb of the Rossing South antiform.
* Zones 1 and 2 - Infill drilling continues to return high grade intersections.
Significant mineralisation has been encountered in 2 adjacent RC holes drilled on the western side of the dome structure south of Zone 2.
It is interpreted to dip shallowly to the west.
A diamond drill hole (RDD082) is being drilled to confirm this orientation.
The core recovered so far shows that the banding and boundaries are at low angles to the core axis consistent with a shallow westerly dip; further, the hole has already intersected alaskite containing uranium mineralisation.
The mineralisation discovered to date at Zones 1 and 2 lies predominantly on the eastern limb of the Rossing South antiform.
Chemical assay results not previously reported from recent drilling at Rossing South include:
Hole ID
From
To
Mineralised zones
(m)
(m)
(U3O8)
New Zone
R3RC0001
157
212
55m @
1474 ppm
R3RC0002
104
157
53m @
1616 ppm
Other Results
Zone 1
RDD037
435
522
87m @
978 ppm
RDD062
49
142
93m @
619 ppm
RRC408
140
185
45m @
995 ppm
RRC433
139
186
47m @
1130 ppm
Zone 2
RDD048
348
361
13m @
1712 ppm
RRC413
264
292
28m @
528 ppm
The broad zones of strong uranium mineralisation from Rossing South continues to increase the known size of this massive mineralised system.
The expanded drilling programme has 10 drilling rigs currently on location, 5 diamond rigs and 5 RC.
Extract Resources Chairman, Mr.
Steve Galloway, said "As we continue infill drilling on Zone 1 as part of our programme to get our resource base into measured and indicated category, our exploration programme is extending the known mineralisation further south along the 15km strike length.
Recent magnetic images showed the potential for the mineralised zone to divide into an antiform with both western and eastern limbs.
These recent drilling results and chemical assays are spectacular and confirm that a new, high grade, zone has been discovered on the western limb of this antiform."
"The Company intends to add further value to the project through ongoing exploration and resource definition drilling aimed at defining the full potential of the project.
As stated recently, we believe a total resource of 500 Mlbs is achievable from targets already defined.
The Company is now well advanced with the Rossing South Feasibility Study on Zones 1 and 2 and the project is shaping up to be one of the worlds largest uranium mines, capable of producing 15 Mlbs of U3O8 per year."
About Extract
Extract Resources is an Australian-based uranium exploration and development company whose primary focus is in the African nation of Namibia.
The Companys principal asset is its 100% owned Husab Uranium Project which contains two known uranium deposit areas, Rossing South and Ida Dome.
Extensive exploration potential also exists for new uranium discoveries.
Rossing South Exploration Update
New Zone
As previously reported, a RC rig was completing a line of drilling south of the Zone 2 line.
This drilling was aimed at following up on a zone of strongly anomalous uranium mineralisation defined by reconnaissance exploration drilling, a further 400 metres to the south.
Some exceptional results have been returned, as indicated by chemical assay of the drill samples, with multiple mineralised zones intersected.
Results returned thus far, include: 55m @ 1474ppm and 53m @ 1616ppm.
These high grade intersections were returned from pegmatitic leucogranites (alaskite) with abundant smoky quartz and clumpy biotite.
It was necessary to position a diamond rig to determine the stratigraphic orientation and dip of the intersections.
This delayed the release of the chemical assay results as the company could not be confident that the results were accurate given the lack of geological knowledge in the exploration zone.
The recovered core shows that the banding and boundaries are at low angles to the core axis consistent with a shallow westerly dip.
Accordingly, the intercepts are likely to be 65% to 75% of true thickness.
General Exploration
Extensive exploration potential still remains to be tested throughout the Husab Project with priority given to Rossing South.
The recently acquired helimag data captured on a 50 metre line spacing reiterates the exploration potential at Rossing South concealed by the Namib Desert.
Uranium mineralisation defined at Rossing South thus far has been intersected mainly in the east limb of the Rossing South antiform (Figure 2).
With the discovery of the mineralised zone in the west limb position, there will be further exploration along strike to the south and in the true Rossing position located about 2 km further west.
Two RC rigs and one diamond rig are engaged in drilling exploration holes south of Zone 2.
The geological sequences observed at Zones 2 and 3 are remarkably similar to each other.
Resource Definition Update
Seven rigs are dedicated to resource drilling at Rossing South.
Two RC rigs at Zone 1 and one RC rig at Zone 2 are drilling infill holes on 50m spaced sections, to increase the level of confidence in the material currently classified as Inferred.
Two diamond rigs are drilling resource extension and definition holes at Zone 2.
Two further diamond rigs are drilling 6 holes at Zone 2 for geotechnical purposes.
Chemical assay results and handheld spectrometer readings from Zone 1 and Zone 2 continue to confirm the presence of broad, high grade alaskite-hosted uranium mineralisation.
Further drilling at Zone 1 and Zone 2 in the coming months is expected to extend the known dimensions of mineralisation.
Infill drilling is expected to increase the level of confidence in the known mineralisation.
Two RC and one diamond rig are currently undertaking exploration drilling south of Zone 2.
Additional rigs are periodically on site for short periods involved in civil geotechnical and hydrogeological investigation for the PFS.
A full list of recently received and previously unreported chemical assay results is shown in Appendix 1.
APPENDIX 1:
TABLE OF NEW RESULTS
Husab Project - Rossing South Prospect: RC and drill core chemical assay results.
Uranium intersections greater than 0.1 kg/t (100 ppm) U3O8 over drill hole intersection widths of not less than 2 metres down hole width:
Hole_id
Northing
Easting
Azi_True
Dip
From
To
Width
Grade
Grade
Assay
UTM WGS84 33S
UTM WGS84 33S
(deg)
(deg)
(m)
(m)
(m)
(kg/t U3O8)
(lb/t U3O8)
Method
R3RC0001
7500000
504000
270
-60
157
212
55
1.474
3.249
AT/MS
R3RC0002
7500000
504100
270
-60
104
157
53
1.616
3.562
AT/MS
187
192
5
0.440
0.969
211
220
9
0.192
0.424
RDD037
7506602
506956
270
-60
332
358
26
0.775
1.708
AT/MS
Including
332
348
16
0.704
1.551
and
353
358
5
1.743
3.842
410
425
15
0.285
0.629
435
522
87
0.978
2.156
Including
435
468
33
0.286
0.630
and
473
511
38
1.871
4.125
and
518
522
4
1.050
2.314
RDD048
7504002
505944
270
-60
309
315
6
0.423
0.932
AT/MS
332
335
3
0.226
0.499
348
361
13
1.712
3.774
373
400
27
0.703
1.551
Including
373
378
5
1.155
2.546
and
385
400
15
0.864
1.904
RDD051
7505404
506407
255.5
-60
357
364
7
1.096
2.415
AT/MS
373
375
2
1.316
2.902
432
441
9
0.444
0.978
RDD052A
7503899
505408
90
-60
100
102
2
0.145
0.320
AT/MS
303
308
5
0.336
0.742
RDD054
7503903
506205
270
-60
268
273
5
0.126
0.277
AT/MS
302
304
2
0.505
1.112
333
365
32
0.618
1.364
Including
333
353
20
0.641
1.412
and
359
365
6
1.127
2.485
422
429
7
0.116
0.256
438
446
8
0.129
0.283
RDD056
7503803
506205
270
-60
272
291
19
0.174
0.384
AT/MS
347
352
5
0.240
0.529
366
374
8
0.168
0.369
409
444
35
0.394
0.868
RDD057
7503503
506206
270
-60
422
431
9
0.132
0.290
AT/MS
RDD060
7505103
506307
270
-60
194
196
2
0.119
0.262
AT/MS
207
211
4
0.157
0.347
268
270
2
0.119
0.262
288
299
11
0.359
0.791
305
311
6
0.406
0.894
330
343
13
0.516
1.138
RDD061
7506901
506654
270
-60
26
31
5
0.154
0.339
AT/MS
71
88
17
2.245
4.949
104
120
16
0.703
1.551
146
152
6
0.168
0.370
Hole_id
Northing
Easting
Azi_True
Dip
From
To
Width
Grade
Grade
Assay
UTM WGS84 33S
UTM WGS84 33S
(deg)
(deg)
(m)
(m)
(m)
(kg/t U3O8)
(lb/t U3O8)
Method
RDD062
7506752
506677
270
-60
49
142
93
0.619
1.364
AT/MS
Including
49
64
15
0.306
0.674
and
69
77
8
0.210
0.462
and
85
142
57
0.892
1.966
203
215
12
0.441
0.972
222
230
8
0.209
0.461
RDD063
7506602
506585
270
-60
57
62
5
0.736
1.622
AT/MS
83
106
23
0.675
1.487
Including
83
88
5
0.835
1.841
and
94
106
12
0.939
2.069
RDD064
7505405
506186
270
-60
96
112
16
0.906
1.998
AT/MS
RDD076
7504901
506205
270
-60
379
381
2
0.274
0.603
AT/MS
397
404
7
0.178
0.392
439
468
29
0.306
0.676
RRC399
7506301
505954
270
-60
79
84
5
0.922
2.032
AT/MS
119
125
6
0.104
0.229
181
186
5
0.202
0.446
202
212
10
0.576
1.269
221
265
44
0.301
0.664
RRC400
7506303
506005
270
-60
142
146
4
0.142
0.314
AT/MS
169
206
37
0.237
0.522
234
252
18
0.248
0.548
281
315
34
0.410
0.904
325
343
18
0.772
1.702
355
362
7
0.535
1.179
373
387
14
0.530
1.169
RRC407
7505953
506256
270
-60
140
142
2
0.221
0.486
AT/MS
RRC408
7505952
506356
270
-60
103
126
23
0.299
0.660
AT/MS
140
185
45
0.995
2.193
211
213
2
0.285
0.629
259
306
47
0.505
1.113
RRC410
7506051
506307
270
-60
56
61
5
0.279
0.614
AT/MS
76
104
28
0.296
0.653
110
112
2
0.809
1.784
RRC413
7501204
505306
270
-60
207
225
18
0.357
0.788
AT/MS
231
239
8
0.455
1.003
264
292
28
0.528
1.164
Including
264
279
15
0.390
0.860
and
284
292
8
1.081
2.383
311
318
7
0.205
0.453
323
332
9
0.105
0.232
338
346
8
0.148
0.326
RRC415
7501204
505506
270
-60
178
182
4
0.134
0.296
AT/MS
224
238
14
0.153
0.336
269
272
3
0.151
0.333
318
320
2
0.219
0.482
347
352
5
0.507
1.117
RRC416
7501200
505600
270
-60
270
278
8
0.113
0.250
AT/MS
300
307
7
0.240
0.530
337
340
3
0.141
0.310
RRC421
7501602
505206
270
-60
134
136
2
0.356
0.785
AT/MS
141
160
19
0.187
0.412
294
296
2
0.127
0.281
RRC422
7501602
505305
270
-60
142
151
9
0.660
1.456
AT/MS
223
261
38
0.189
0.417
276
290
14
0.119
0.263
Hole_id
Northing
Easting
Azi_True
Dip
From
To
Width
Grade
Grade
Assay
UTM WGS84 33S
UTM WGS84 33S
(deg)
(deg)
(m)
(m)
(m)
(kg/t U3O8)
(lb/t U3O8)
Method
RRC423
7501602
505405
270
-60
217
229
12
0.647
1.427
AT/MS
300
321
21
0.196
0.433
330
335
5
0.118
0.260
348
351
3
0.243
0.535
368
379
11
0.222
0.490
RRC424
7501600
505500
270
-60
287
297
10
0.338
0.744
AT/MS
320
324
4
0.149
0.328
378
382
4
0.136
0.299
RRC425
7501600
505600
270
-60
284
299
15
0.183
0.404
AT/MS
307
314
7
0.129
0.285
328
360
32
0.196
0.431
RRC426
7501600
505700
270
-60
307
326
19
0.164
0.361
AT/MS
332
354
22
0.243
0.536
RRC427
7500800
504900
270
-60
149
153
4
0.129
0.285
AT/MS
328
339
11
0.139
0.305
352
359
7
0.128
0.281
383
385
2
0.197
0.435
391
399
8
0.116
0.255
RRC428
7500800
505000
270
-60
145
150
5
0.227
0.500
AT/MS
189
198
9
0.695
1.532
238
240
2
0.562
1.239
247
252
5
0.291
0.641
RRC429
7500800
505100
270
-60
128
140
12
0.678
1.494
AT/MS
236
238
2
0.292
0.645
253
255
2
0.161
0.355
RRC431
7506053
506405
270
-60
49
61
12
0.141
0.310
AT/MS
74
115
41
0.542
1.195
Including
74
93
19
0.520
1.147
and
99
115
16
0.749
1.652
152
154
2
0.624
1.376
169
201
32
0.452
0.997
222
225
3
0.701
1.545
239
244
5
0.216
0.477
252
255
3
0.197
0.434
291
295
4
0.177
0.391
RRC433
7506150
506350
270
-60
105
110
5
0.254
0.560
AT/MS
139
186
47
1.130
2.492
RRC434
7506150
506450
270
-60
70
77
7
0.199
0.438
AT/MS
86
97
11
0.358
0.790
190
215
25
0.544
1.199
234
257
23
0.791
1.743
293
300
7
0.440
0.969
RRC436
7506250
506400
270
-60
74
81
7
0.218
0.480
AT/MS
176
178
2
0.169
0.372
223
231
8
0.379
0.835
241
245
4
0.126
0.277
251
255
4
0.361
0.797
260
265
5
0.183
0.404
RRC437
7506250
506500
270
-60
67
126
59
0.683
1.506
AT/MS
Including
67
108
41
0.703
1.550
and
113
126
13
0.874
1.927
161
213
52
0.586
1.291
Including
161
188
27
0.636
1.402
and
193
213
20
0.659
1.454
222
225
3
0.169
0.373
RRC439
7506350
506450
270
-60
51
71
20
1.236
2.724
AT/MS
278
280
2
0.743
1.638
Hole_id
Northing
Easting
Azi_True
Dip
From
To
Width
Grade
Grade
Assay
UTM WGS84 33S
UTM WGS84 33S
(deg)
(deg)
(m)
(m)
(m)
(kg/t U3O8)
(lb/t U3O8)
Method
RRC440
506550
7506350
270
-60
78
120
42
0.159
0.351
AT/MS
Including
78
87
9
0.187
0.413
and
96
101
5
0.172
0.380
and
108
120
12
0.316
0.697
152
192
40
0.322
0.710
Including
152
170
18
0.529
1.165
and
177
192
15
0.212
0.467
RRC441
7506303
506106
270
-60
73
75
2
0.190
0.420
AT/MS
Notes:
* Analyses on RC chips and NQ drill core by Genalysis Laboratory Services, Perth.
Uranium assays were carried out by Four Acid Digest/MS (AT/MS) or Pressed Pellet X-ray fluorescence (XRFPP).
* Metal values (U) have been converted to oxide values (U3O8) using a factor of 1.179, and expressed as kg/t U3O8.
Note that 100 ppm U3O8 is equivalent to 0.1 kg/t U3O8, which is 0.01% U3O8.
* Assays expressed as kg/t U3O8 have been converted to lb/ tonne by multiplying by 2.2046.
* Intersection widths are estimated to be approximately true width.
The information in this report that relates to Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Mr Neal Culpan, who is a Member of The Australasian Institute of Mining and Metallurgy.
Mr Culpan is a full time employee of the Company.
Mr Culpan 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 Culpan consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.
Reference to hand held spectrometer results refers to use of a Company owned Exploranium, GR-135 Plus or Terraplus RS-125, hand held spectrometer.
The uranium values are recorded by placing the unit on the bulk RC sample bags or individual trays of drill core and expressed as parts per million (ppm) eU which is equivalent to ppm U.
Results from these units provide an indication of uranium mineralisation; they may also be affected by uranium mobility and disequilibrium.
These factors should be considered when interpreting eU information whilst waiting for confirmation chemical assay results.
* * ENDS * *
For further information please visit www.kalahari-minerals.com or contact:
Mark Hohnen
Kalahari Minerals Plc
Tel: +61 (0) 8 9389 4488
Simon Raggett
Strand Partners Limited
Tel: +44 (0) 20 7409 3494
Stuart Faulkner
Strand Partners Limited
Tel: +44 (0) 20 7409 3494
Rory Murphy
Strand Partners Limited
Tel: +44 (0) 20 7409 3494
Richard Chase
Ambrian Partners Ltd
Tel: +44 (0) 20 7634 4700
Rory Scott
Mirabaud Securities LLP
Tel: +44 (0) 20 7878 3360
Hugo de Salis
St Brides Media & Finance Ltd
Tel: +44 (0) 20 7236 1177
Susie Callear
St Brides Media & Finance Ltd
Tel: +44 (0) 20 7236 1177
Notes to Editors:
Kalahari Minerals Plc is an AIM listed mining and exploration group with a portfolio of uranium, gold and base metal interests in western and eastern central Namibia.
Its key investment is its circa 40% holding in ASX and TSX listed Extract Resources Limited (www.extractresources.com), which is developing the Husab Uranium Project, strategically located directly south of Rio Tintos producing Rossing Mine.
Work is focussing on three main prospects within the project area, Rossing South, Ida Dome and Hildenhof, and results continue to underpin the prospectivity of the region, particularly following the world class Rossing South discovery.
Extract has reported a JORC compliant combined Husab Resource (Global Resources) in excess of 292 M lbs U3O8 of which 267 M lbs U3O8 at a grade of 487 ppm from the two zones at Rossing South.
Importantly these are both open ended at depth and along strike.
Kalahari believes Extract has the ground and potential to deliver on Kalaharis estimates of a resource in the region of 500 M lbs U3O8.
Kalaharis copper interests are focused on two project areas, Dordabis and Witvlei, where an exploration programme is underway to define +250,000 tonnes of copper metal.
A third project, Ubib, is believed to be prospective for gold mineralisation, whilst a forth project, the Namib Lead Zinc Project, centred on the old Namib Lead Mine, contains surface tails and underground mining reserves of 1.65 million tonnes at 5.7% zinc, 1.6% lead and 40.2 g/t silver (non JORC compliant).
Kalahari aims to take this final project to bankable feasibility study stage with a view to recommencing mining operations in the short term.
Susie Callear
St Brides Media & Finance Ltd
Chaucer House
38 Bow Lane
London EC4M 9AY
T: +44 (0) 207 236 1177 | M: +44 (0) 7976 749 561 | F: +44 (0) 207 236 1188 | www.sbmf.co.uk
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