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Gold/Mining/Energy : Gold and Silver Juniors, Mid-tiers and Producers -- Ignore unavailable to you. Want to Upgrade?

To: koan who wrote (22017)	9/29/2006 12:51:06 PM
From: onepath	Read Replies (1) \| Respond to of 78416

Dia Bras drills 2.17% Cu, 18.61% Zn at Bolivar 2006-09-29 11:22 ET - News Release Mr. Thomas Robyn reports DIA BRAS EXTENDS MINERALIZED ZONES AT BOLIVAR MINE Dia Bras Exploration Inc. has received recent results for its continuing development and pilot-mining program at its Bolivar property in the state of Chihuahua, Mexico. Development of the Bolivar pilot mine has continued, with two ramps driven to access mineralized rock located by the company's underground drilling program. A ramp has been driven from Level 1 to Level 2 to access the down-dip extension of the breccia Linda zone, and a ramp has been driven from Level 6 to Level 7 to access the downward extensions of the Rosario and Fernandez zones. The drill results that caused the company to initiate ramp development are: Drill Hole From To Length Cu Zn Au Ag (m) (m) (m) (%) (%) (g/t) (g/t) Underground drill holes DB06BM026 3.0 4.5 1.5 0.30 4.06 0.0 2.3 (Manto Gordo, 4.5 6.0 1.5 1.51 8.16 0.0 10.2 Level 1) 6.0 7.5 1.5 0.33 4.59 0.0 2.7 7.5 9.0 1.5 0.18 7.66 0.0 2.2 Total and average 6.0 0.58 6.12 0.0 4.3 27.6 28.5 0.9 0.40 4.00 0.0 14.2 28.5 30.0 1.5 1.48 16.2 0.0 15.8 30.0 31.5 1.5 0.89 7.04 0.0 5.8 31.5 32.3 0.8 0.06 0.49 0.0 7.8 Total and average 4.7 0.85 8.27 0.0 10.9 DB06BM024 31.5 33.0 1.5 0.15 3.35 0.0 2.3 (La Foto, 33.0 34.5 1.5 1.22 20.20 0.0 7.2 Level 2) 34.5 36.0 1.5 0.10 2.68 0.0 1.6 Total and average 4.5 0.49 8.74 0.0 3.7 DB06BM027 46.0 47.5 1.5 0.61 3.73 0.0 7.9 (Rosario, 47.5 49.0 1.5 1.58 7.14 0.1 38.7 below 49.0 50.5 1.5 0.34 3.85 0.0 12.7 Level 6) 50.5 51.8 1.3 0.20 6.34 0.0 6.9 Total and average 5.8 0.70 5.23 0.0 16.9 DB06BM028 13.0 14.5 1.5 0.18 13.40 0.0 15.0 (Rosario, 14.5 16.0 1.5 3.34 27.10 0.1 38.3 below 16.0 17.5 1.5 0.20 4.67 0.0 3.5 Level 6) 17.5 19.1 1.6 4.77 28.60 0.1 42.0 Total and average 6.1 2.17 18.61 0.0 25.0 DB06BM029 27.0 28.5 1.5 0.28 2.70 0.0 5.1 (Rosario, 28.5 29.4 0.9 0.20 20.40 0.0 4.2 below Level 6) Total and average 2.4 0.25 9.15 0.0 4.8 DB06BM030 50.2 51.0 0.8 0.44 16.55 0.09 24.9 (Rosario, 54.0 55.5 1.5 0.48 2.92 0.0 6.8 below 55.5 58.3 2.8 0.28 4.18 0.1 17.4 Level 6) Total and average 4.3 0.35 3.74 0.1 13.7 DB06BM031 10.0 11.0 1.0 1.77 29.4 0.10 21.7 Rosario, 126.6 127.5 0.9 0.97 12.60 0.10 35.1 below 127.5 129.3 1.8 1.03 7.42 0.10 39.9 Level 6) Total and average 2.7 0.35 3.74 0.1 13.7 Surface drill holes DB04B058 149.0 150.0 1.0 0.0 2.50 0.0 1.4 (Fernandez, 150.0 151.0 1.0 0.10 8.70 0.0 6.3 below 151.0 152.0 1.0 10.30 7.30 0.0 42.0 Level 6) 152.0 153.0 1.0 0.70 12.0 0.0 3.8 Total and average 4.0 2.79 7.63 0.0 13.4 159.0 160.0 1.0 3.07 12.55 0.0 40.3 160.0 161.0 1.0 2.09 18.40 0.0 25.0 161.0 162.0 1.0 3.58 16.55 0.0 34.5 Total and average 3.0 2.91 15.83 0.0 33.3 DB04B067 159.0 160.0 1.0 4.00 18.45 0.0 19.3 (Fernandez, 160.0 161.0 1.0 0.00 1.40 0.0 0.2 below 161.0 162.0 1.0 0.00 0.31 0.0 0.3 Level 6) 162.0 163.0 1.0 1.10 0.83 0.3 19.8 Total and average 4.0 1.28 4.93 0.1 9.9 210.0 211.0 1.0 4.49 16.50 4.7 112.0 211.0 212.0 1.0 0.12 1.19 0.0 7.5 212.0 213.0 1.0 0.17 1.47 0.1 16.9 Total and average 3.0 1.59 6.39 1.6 45.5 DB06B159(i) 83.0 86.0 3.0 0.12 3.39 0.3 2.5 (Rosario, 86.0 89.0 3.0 0.20 6.89 0.1 5.0 under 89.0 92.0 3.0 0.10 12.20 0.6 5.3 Level 6) 92.0 93.0 1.0 0.00 0.00 0.0 0.0 93.0 94.0 1.0 0.75 21.00 0.05 12.2 Total and average 11.0 0.18 8.04 0.05 4.6 101.0 104.0 3.0 0.03 2.99 0.0 2.9 104.0 107.0 3.0 0.01 7.73 0.0 1.3 107.0 108.3 1.3 0.03 0.84 0.0 0.5 108.3 109.3 1.0 1.00 23.40 0.4 66.7 109.3 110.3 1.0 0.73 22.20 0.4 29.2 110.3 111.3 1.0 1.77 >30.00 0.5 43.5 Total and average 10.3 0.36 >10.57 0.1 14.8 DB06B168(i) 83.0 84.5 1.5 6.21 0.29 0.4 100.0 (Rosario, 84.5 86.0 1.5 1.08 3.64 0.1 64.2 under 86.0 87.5 1.5 0.41 10.35 0.0 19.3 Level 6) Total and average 4.5 2.57 4.76 0.2 61.2 91.0 92.0 1.0 0.37 13.00 0.4 10.2 92.0 93.0 1.0 0.95 16.80 0.1 16.0 Total and average 2.0 0.66 14.90 0.0 13.1 95.0 96.0 1.0 0.54 9.08 0.0 12.6 96.0 97.0 1.0 0.19 4.46 0.0 7.0 Total and average 2.0 0.37 6.77 0.0 9.8 126.5 128.0 1.5 1.43 0.00 0.1 39.6 128.0 131.0 3.0 1.14 3.19 0.0 16.8 Total and average 4.5 1.24 2.13 0.1 24.4 134.0 135.5 1.5 0.63 15.25 0.1 14.6 135.5 137.0 1.5 0.11 15.25 0.0 4.5 137.0 138.5 1.5 0.33 7.31 0.0 7.0 138.5 140.0 1.5 0.09 5.08 0.0 2.1 140.0 141.5 1.5 0.11 5.80 0.0 2.7 141.5 143.0 1.5 0.05 2.53 0.0 2.3 143.0 144.5 1.5 0.07 3.68 0.0 3.4 Total and average 10.5 0.20 7.84 0.0 5.2 144.5 146.0 1.5 0.05 0.51 0.0 2.3 146.0 147.5 1.5 0.51 0.08 0.1 15.2 147.5 149.0 1.5 0.32 0.01 0.1 12.5 149.0 150.5 1.5 0.55 0.05 0.0 7.0 150.5 152.0 1.5 0.87 0.02 0.2 25.5 152.0 153.5 1.5 0.19 0.02 0.0 17.9 153.5 155.0 1.5 2.08 1.74 0.0 39.8 155.0 156.5 1.5 0.75 4.04 0.0 16.2 156.5 158.0 1.5 0.27 3.54 0.0 6.5 158.0 159.5 1.5 0.72 2.23 0.0 13.9 Total and average 15.0 0.63 1.22 0.1 15.7 DB06B170 14.5 16.0 1.5 0.21 3.65 0.0 5.5 (Calixtro 16.0 19.0 3.0 0.23 2.27 0.0 4.6 manto, five 19.0 22.0 3.0 0.19 3.34 0.0 6.4 metres below surface) Total and average 7.5 0.21 2.97 0.0 5.4 DB06B171 8.0 10.0 2.0 11.10 14.50 0.1 62.4 (Calixtro 14.0 15.9 1.9 0.63 2.71 0.0 4.1 manto, five 15.9 17.0 1.1 0.68 1.92 0.0 2.7 metres below 17.0 20.0 3.0 0.74 2.88 0.0 3.2 surface) Total and average 6.0 0.69 2.64 0.0 3.4 DB06B172 15.0 16.0 1.0 2.25 7.03 0.0 22.2 (Calixtro 16.0 17.0 1.0 3.19 12.10 0.0 39.6 manto, five metres below surface) Total and average 2.0 2.72 9.57 0.0 30.9 (i) Results have been released previously In addition to the assays given above, certain holes were assayed for iron content where high magnetite levels occur, which indicates the presence of the South Bolivar iron-copper-gold-silver skarn below the present mine workings. The importance of these intercepts is that it demonstrates that the South Bolivar skarn has an extension of over 800 metres along a southeast-northwest trend, from El Gallo to beneath the Bolivar mine. The iron-copper-zinc results from the South Bolivar under Level 6 are: Drill Hole From To Length Cu Zn Fe (m) (m) (m) (%) (%) (%) DB06B159(i) 83.0 86.0 3.0 0.12 3.39 10.60 (Rosario, 86.0 89.0 3.0 0.20 6.89 11.95 under Level 6) 89.0 92.0 3.0 0.10 12.20 9.39 92.0 93.0 1.0 0.00 0.00 0.00 93.0 94.0 1.0 0.75 21.00 3.19 Total and average 11.0 0.18 8.04 9.00 101.0 104.0 3.0 0.03 2.99 0.76 104.0 107.0 3.0 0.01 7.73 1.52 107.0 108.3 1.3 0.03 0.84 0.63 108.3 109.3 1.0 1.00 23.40 2.72 109.3 110.3 1.0 0.73 22.20 3.45 110.3 111.3 1.0 1.77 >30.00 4.66 Total and average 10.3 0.36 >10.57 1.80 DB06B168(i) 83.0 84.5 1.5 6.21 0.29 17.80 (Rosario, 84.5 86.0 1.5 1.08 3.64 13.20 under Level 6) 86.0 87.5 1.5 0.41 10.35 11.15 Total and average 4.5 2.57 4.76 14.05 91.0 92.0 1.0 0.37 13.00 9.90 92.0 93.0 1.0 0.95 16.80 9.70 Total and average 2.0 0.66 14.90 9.80 95.0 96.0 1.0 0.54 9.08 11.45 96.0 97.0 1.0 0.19 4.46 15.80 Total and average 2.0 0.37 6.77 13.63 126.5 128.0 1.5 1.43 0.00 10.50 128.0 131.0 3.0 1.14 3.19 16.80 Total and average 4.5 1.24 2.13 14.70 134.0 135.5 1.5 0.63 15.25 16.50 135.5 137.0 1.5 0.11 15.25 16.60 137.0 138.5 1.5 0.33 7.31 16.80 138.5 140.0 1.5 0.09 5.08 48.00 140.0 141.5 1.5 0.11 5.80 >50.00 141.5 143.0 1.5 0.05 2.53 >50.00 143.0 144.5 1.5 0.07 3.68 >50.00 Total and average 10.5 0.20 7.84 >35.41 144.5 146.0 1.5 0.05 0.51 >50.00 146.0 147.5 1.5 0.51 0.08 43.00 147.5 149.0 1.5 0.32 0.01 42.60 149.0 150.5 1.5 0.55 0.05 44.60 150.5 152.0 1.5 0.87 0.02 33.90 152.0 153.5 1.5 0.19 0.02 19.00 153.5 155.0 1.5 2.08 1.74 37.20 155.0 156.5 1.5 0.75 4.04 48.00 156.5 158.0 1.5 0.27 3.54 48.40 158.0 159.5 1.5 0.72 2.23 47.80 Total and average 15.0 0.63 1.22 >41.50 (i) Results have been released previously Results shown in this table illustrate that the South Bolivar skarn becomes more zinc-rich in the Bolivar mine area, which is consistent with this area being in the distal, zinc-dominant portion of the large mineralized area at Bolivar. Geologic mapping in the area southeast of the Bolivar pilot mine, covering an area of approximately three square kilometres has resulted in the identification of a major fault zone northeast of the mine that strikes northwest-southeast and dips steeply northeast, which separates the Upper Volcanic series from the Lower Volcanic series. Displacement on the fault is not known. Prior to this mapping, it had been assumed that the rocks were in depositional contact, a relationship that would have little meaning in the context of mineralization in this area. Recognition of this fault, however, has clarified certain geologic relationships in that it explains why the carbonate rocks are so strongly skarnified and mineralized in the El Val -- La Pequena areas because the fault zone splays in a tension gash relationship in that area. Company geologists have collected surface samples over several metres in this area that assay up to 7 per cent copper, which were given in a press release on April 22, 2004, but are repeated here because of the newly-recognized fault control on the mineralization. Width Cu Zn Ag Structure (m) (%) (%) (g/t) La Montura 2 0.21 0.50 10.0 La Montura 2 7.22 4.60 53.1 La Montura 2 3.63 18.40 39.0 Total La Montura 6 3.69 7.80 34.0 Central Zone 2 0.95 29.3 12.5 La Pequenia 2 1.61 0.44 251.0 La Pequenia 2 5.58 0.80 282.0 La Pequenia 2 4.32 0.93 178.0 Total La Pequenia 6 3.84 0.72 237.0 Although the company has collected surface samples in this area, no drilling has been done. The relationship is also consistent with the distal, zinc-rich mineralization in the Bolivar mine area, which typically occurs in the outer zones of alteration around a copper porphyry deposit, as well as the presence of more remnant carbonate rock in the mine area. The fault zone, named by the company as the Banda fault, is inferred to be the primary feeder zone for mineralizing fluids in the Bolivar property. It extends beyond the mapped area but is several kilometres in length. Dia Bras's drill data demonstrate that the skarnified and mineralized rocks are several hundred metres thick in this area, which results in a major zone of interest for exploration as major replacement and skarn deposits are inferred to occur along the fault zone. Surface drilling during mid-2006 was limited due to an extremely dry season this year, which resulted in lack of water for diamond drilling on the surface. The rainy season has commenced in earnest and exploration drilling is now in progress. The area immediately to the southwest of the Banda fault is a primary exploration target for the company, and will be drilled in the following weeks. Dia Bras plans to drill 10,000 metres of diamond holes between the Banda fault and the El Gallo area in order to test the down-dip extension of the South Bolivar copper-iron-gold-silver skarn, the downward extension of the Incredible breccia pipe, and to test for the occurrence of replacement deposits along the Banda fault. Andre St-Michel, engineer and chief operating officer and executive vice-president of Dia Bras, is the qualified person within the meaning of NI 43-101. Method of analysis The analyses were conducted at Chemex Laboratories in Vancouver by fire assay for precious metals and atomic absorption for base metals. We seek Safe Harbor.