13th Dec 2005 08:54
Centamin Egypt Limited13 December 2005 SUKARI DRILLING UPDATE • New mineralisation encountered beneath sand cover off the Sukari Hill • Drill assays indicate top of Amun Zone previously treated as waste and pre-strip is mineralised • Ra Zone mineralisation continues to confirm continuity with the Amun Zone • Higher grade broad mineralisation continuing at depth • New resource calculation underway • Seven rig drilling program continues • Significant gold intersections:- RC 366 12m @ 3.82 g/t RC 406 6m @ 5.07 g/t 39m @ 2.65 g/t 41m @ 3.69 g/t 15m @ 4.32 g/t RC 370 74.5m @ 4.63 g/t DD 408 26m @ 4.23 g/t 2m @ 13.55 g/tRC 388 30m @ 3.65 g/t (including 3m @ 20.78 g/t) DD 410 6m @ 3.91 g/t 24m @ 9.70 g/t 1m @ 21.60 g/t (including 1m @ 185.00 g/t & 72m @ 2.30 g/t 9m @ 23.78 g/t) 7m @ 5.78 g/t RC 391 14m @ 3.93 g/t RC 416 23m @ 6.92 g/t 35m @ 4.21 g/t (including 11m @ 12.53 g/t) 5m @ 3.97 g/tRC 395 1m @ 573.00 g/t Southern Extension of the Amun Zone Recent drilling carried out on the wadi floor up to 100 metres south and to theeast of the Sukari outcrop has encountered extensive intersections of high grademineralisation. To-date ten drill holes have been drilled and the following significant assaysreturned:- DD 326 46m @ 2.00 g/t 3m @ 9.39 g/t (previously reported)RC 370 4m @ 5.09 g/t 74.5m @ 4.63 g/t 10m @ 2.48 g/t 4m @ 3.40 g/tRC 372 13.15m @ 3.56 g/t 6m @ 7.71 g/tRC 383 7m @ 8.48 g/tRC 416 13m @ 2.80 g/t 6m @ 2.88 g/t 23m @ 6.92 g/t (including 11m @ 12.53 g/t) 5m @ 3.97 g/t Mineralisation is related to intense sulphide and sericite veining within thealtered porphyry with a relatively high percentage of arsenopyrite and pyritepresent in the core. These holes continue to demonstrate the extensiveness of the system and havebeen drilled outside of the existing resource. Infill and Step Out Drilling Programme: Amun Zone: Other significant assays continue to be returned from the ongoing infill andstep out programme on the Sukari hill. Drill holes 394, 399, 400, 401, 405, 406,408, 413, 414 and 415 tested the upper portion of the Amun Zone between 10250Nand 10375N. This area has previously had limited drilling due to the steep terrain and as aconsequence had previously been treated as waste in determining the currentgeological resource and also as a large component of pre-strip in scopingstudies. Drilling confirmed the strike and dip continuity of the high gradehistoric Main Reef, previously worked by the ancients. RC 394 11m @ 2.08 g/tRC 399 4m @ 5.88 g/t 5m @ 2.83 g/tRC 400 4m @ 1.90 g/t 4m @ 2.57 g/tRC 401 8m @ 3.53 g/tRC 405 10m @ 2.23 g/t 8m @ 4.21 g/tRC 406 6m @ 5.07 g/t 41m @ 3.69 g/tDD 408 26m @ 4.23 g/t 2m @ 4.14 g/t 2m @ 13.55 g/tRC 413 5m @ 2.78 g/t 5m @ 19.21 g/t 4m @ 4.47 g/tRC 414 3m @ 3.73 g/t 4m @ 4.89 g/tRC 415 10m @ 3.64 g/t 17m @ 2.56 g/t The high grade mineralised zones are related to the Main Reef which is alaminated and brecciated quartz vein. On the hangingwall and footwall side ofthe Main Reef, gold mineralization is related to typical Sukari quartz stockworkmineralization and altered porphyry (dominantly sericite and silica). Ra Zone: Drill holes 387, 403 and 410 were drilled in the Ra Zone from 10875N to 10925N.Gold mineralisation is related to quartz veining and alteration of the porphyrywith kaolinite and silica the main alteration minerals. This is well displayedin the broad run of mineralisation in hole 410 (72m @2.30g/t). RC 387 3m @ 3.69 g/t 18m @ 1.89 g/t 4m @ 2.59 g/tDD 403 19m @ 1.55 g/t 4m @ 2.14 g/t 21m @ 1.59 g/tDD 410 6m @ 3.91 g/t 1m @ 21.6 g/t 72m @ 2.30 g/t 7m @ 5.78 g/t Below the Planned Pit Floor: Holes 386, 388, 389, 391, 395 and 402 confirm the continuity and strength ofmineralisation within the porphyry at depth and along strike from 10125N to10750N (625m). Mineralisation within this area was previously undefined andoutside of the current resource. Gold is related to typical Sukarimineralisation assemblages, that being shearing, quartz veining, stockworks andalteration, typically sericite with zones of kaolinite. RC 386 47m @ 1.26 g/t 4m @ 4.08 g/tRC 388 30m @ 3.65 g/t (including 3m @ 20.78 g/t) 24m @ 9.70 g/t (including 1m @ 185 g/t and 9m @ 23.78 g/t)RC 389 9m @ 2.47 g/t (including 3m @ 5.43 g/t) 13m @ 1.75 g/tRC 391 14m @ 3.93 g/t 35m @ 4.21 g/t 8m @ 2.08 g/tDD 395 11m @ 2.86 g/t 1m @ 573 g/t 7m @ 2.77 g/tRC 402 8m @ 9.09 g/t 4m @ 14.02 g/t The company has instructed Hellman and Schofield, independent resourceconsultants, to recalculate the current Sukari gold resource to JORC standards.The new resource figure is expected in the next 14 days. See the attached schedule for significant gold intersections from assaysreceived since the September 2005 Quarterly Report. For more information please contact: Josef El Raghy or Heidi BrownManaging Director/CEO Company SecretaryTel: + 61 8 9316 2640 Tel: + 61 8 9316 2640Fax: + 61 8 9316 2650 Fax: + 61 8 9316 [email protected] [email protected] ASX Listing Rules 5.10 Information in this report which relates to exploration, geology, sampling anddrilling is based on information compiled by geologist Mr R Osman who is a fulltime employee of the Company, and is a member of the Australasian Institute ofMining and Metallurgy with more than five years experience in the fields ofactivity being reported on, and is a 'Competent Person' for this purpose. Hiswritten consent has been received by the Company for this information to beincluded in this report in the form and context which it appears. The information in this report that relates to mineral resources is based oninformation compiled by Mr Gary Brabham, a member of the Australasian Instituteof Mining and Metallurgy. Mr Brabham was employed by Hellman & Schofield Pty Ltda consultancy primarily concerned with estimation of mineral resourcesworldwide. Mr Brabham is a Competent Person under the meaning of the J.O.R.C.code with respect to the mineralisation being reported in this report. MrBrabham has more than five years' experience in the mining industry and hasgiven his consent to the public reporting of this information in the sectionheaded Resource Increase. For this report, measured resources lie in areas where drilling is available atnominal 25 x 25 metre spacing, indicated resources in areas drilled atapproximately 25 x 50 metre spacing and inferred resources in areas of broaderspaced drilling. The resource model extends to 750RL (approximately 400 metresbelow surface), and resources are estimates of recoverable tonnes and gradesusing Multiple Indicator Kriging with block support correction. Appropriate check sampling has been undertaken to verify the gold assays used inthis estimate.Significant Gold Intersections since the September 2005 Quarterly Report Hole No. North East Az Dip From (m) To (m) Width (m) Grade (Au g/t) DD326 10078 10591 268 -74 170 216 46 2.00 303 306 3 9.39 DD361 10778 10470 27 -70 101 114 13 3.82 RC366 10547 10577 277 -70 139 151 12 3.82 206 245 39 2.65 283 298 15 4.32 RC370 10025 10518 270 -88 133 137 4 5.09 149.5 224.0 74.5 4.63 230 240 10 2.48 247 251 4 3.40 DD371 10850 10430 270 -90 34 39 5 5.57 RC372 10049 10528 268 -68 192.85 206.0 13.15 3.56 RC378 10228 10512 266 -58 80 180 100 1.75 DD379 10527 10572 270 -63 129 138 9 2.90 205 216 11 2.49 DD382 10601 10559 272 -62 208 229 21 2.20 RC383 9945 10537 270 -70 190 196 6 7.71 235 242 7 8.48 RC386 10130 10617 270 -85 200 247 47 1.26 281 285 4 4.08 DD387 10926 10852 270 -45 225 228 3 3.69 235 253 18 1.89 269 273 4 2.59 RC388 10302 10644 258 -82 244 274 30 3.65 incl 265 268 3 20.78 294 318 24 9.70 incl 295 296 1 185.00 incl 294 303 9 23.78 RC389 10452 10753 270 -65 293 302 9 2.47 incl 299 302 3 5.43 336 349 13 1.75 RC391 10604 10832 265 -64 381 395 14 3.93 401 436 35 4.21 445 453 8 2.08 RC394 10275 10410 270 -60 69 80 11 2.08 DD395 10750 10808 270 -55 196 207 11 2.86 352 353 1 573.00 371 378 7 2.77 RC399 10300 10410 272 -63 77 81 4 5.88 87 92 5 2.83 RC400 10325 10410 270 -60 3 7 4 1.90 42 46 4 2.57 RC401 10350 10400 270 -63 71 79 8 3.53 RC402 10685 10858 270 -56 450 458 8 9.09 492 496 4 14.02 DD403 10871 10680 270 -60 50 69 19 1.55 120 124 4 2.14 147 168 21 1.59 RC405 10375 10400 270 -60 59 69 10 2.23 78 86 8 4.21 RC406 10375 10450 270 -60 63 69 6 5.07 105 146 41 3.69 DD408 10255 10429 0 -90 92 118 26 4.23 237 239 2 4.14 246 248 2 13.55 DD410 10870 10680 270 -75 104 110 6 3.91 128 129 1 21.60 325 397 72 2.30 443 450 7 5.78 DD411 10925 10850 270 -20 47 55 8 2.59 RC413 10348 10438 270 -62 75 80 5 2.78 94 99 5 19.21 123 127 4 4.47 RC414 10324 10434 0 -90 96 99 3 3.73 135 139 4 4.89 RC415 10300 10445 270 -60 95 105 10 3.64 112 129 17 2.56 RC416 10000 10523 270 -83 159 172 13 2.80 196 202 6 2.88 212 235 23 6.92 incl 217 228 11 12.53 243 248 5 3.97 This information is provided by RNS The company news service from the London Stock ExchangeRelated Shares:
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