Dia Bras: Discovers Significant Copper-Iron Skarn at Bolivar South.MONTREAL -- Dia Bras Exploration Inc. (TSX TSX Toronto Stock Exchange (TSE before April, 2002) TSX Transfer from Stack Pointer to Index TSX True Space Extension VENTURE:DIB (1) (Directory Information Base) Also called "white pages," a database of names in an X.500 system. (2) (Device Independent B ) is pleased to announce the results of 22 diamond drill holes that have penetrated a significant copper-iron skarn skarn In geology, a metamorphic zone developed in the contact area around igneous rock intrusions when carbonate sedimentary rocks are invaded by and replaced with chemical elements that originate from the igneous rock mass nearby. at South Bolivar, located 400 meters south-southeast of the Company's Bolivar mine where pilot-mining is being conducted.The skarn dips gently (20 degrees NE) and has been penetrated over an area 200 meters by 400 meters and is open down-dip.The skarn crops out and has been drilled down-dip to a depth of 300 meters.The skarn body ranges in thickness from 1 meter on its edge to 23 meters, with an average width of 9 meters. Copper values are 0.8 to 4.0% and with a weighted average of 1.5%, magnetite magnetite (măg`nətīt), lustrous black, magnetic mineral, Fe3O4. It occurs in crystals of the cubic system, in masses, and as a loose sand. content ranges between 11 and 40% with a weighted average of 26%, silver contents are 11 to 104 g/t with an average of 31.5 g/t, and gold varies from 0.1 to 3.0 g/t, with a weighted average of 0.4 g/t.The drill hole locations are shown on the map attached and detailed results are as follows:
Table I - Drill Results - Bolivar South
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Drill From To Apparent Cu Zn Au Ag Fe
Holes Width % % g/t g/t %
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DB03B002(i) 134.0 142.5 8.50 1.18 0.14 0.09 16.01
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196.0 197.0 1.00 1.18 0.06 0.91 24.60
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DB04B005 109.0 121.0 12.00 2.11 0.03 0.08 45.18
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DB04B017 60.0 62.0 2.00 1.53 0.51 0.03 19.70
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DB05B111 159.0 173.0 14.00 1.37 0.18 0.51 27.09
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DB05B114 152.0 153.0 1.00 0.96 0.09 1.37 20.50
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DB05B122 126.0 128.0 2.00 1.64 0.47 1.05 18.85
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DB05B115 210.0 233.0 23.00 0.92 0.14 0.11 13.75 22.16
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DB05B112 241.0 255.0 14.00 1.30 0.06 0.48 13.59 15.18
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DB05B118 125.0 143.0 18.00 0.54 0.13 0.45 7.24 11.52
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DB05B121 200.0 215.0 15.00 1.29 0.03 0.13 27.84 20.44
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DB05B124 227.5 241.5 14.00 1.77 0.43 0.46 28.92 22.85
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DB05B125 161.0 176.0 15.00 1.38 0.20 0.86 45.35 21.44
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DB05B126 183.0 192.0 9.00 0.74 0.01 0.19 11.03 7.83
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DB05B127 162.0 168.0 6.00 0.70 0.10 0.08 11.90 19.41
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DB05B128 157.0 161.0 4.00 1.14 0.06 3.08 61.35 15.46
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DB05B130 196.0 200.0 4.00 3.95 0.31 0.57 62.65 28.31
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DB05B134 315.4 317.6 2.20 0.69 0.06 0.17 10.46 16.03
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DB05B135(i) 165.0 170.3 5.30 2.23 0.16 1.07 103.78 26.78
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DB05B154 75.0 83.0 8.00 2.25 0.04 0.12 50.08 14.87
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154.0 158.0 4.00 0.56 0.02 0.24 8.03 13.03
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DB05B156 83.0 102.0 19.00 2.06 0.16 0.28 49.22 17.47
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DB06B158 74.0 84.0 10.00 2.77 2.09 0.29 57.33 14.36
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(i) Previously announced
The skarn mineralization Mineralization The process by which the body uses minerals to build bone structure. Mentioned in: Rickets mineralization, n the bioprecipitation of an inorganic substance. is hosted in a dolomitic dol·o·mite n. 1. A white or light-colored mineral, essentially CaMg(CO3)2, used in fertilizer, as a furnace refractory, and as a construction and ceramic material. 2. skarn situated between an underlying granitic intrusion and an overlying overlying suffocation of piglets by the sow. The piglets may be weak from illness or malnutrition, the sow may be clumsy or ill, the pen may be inadequate in size or poorly designed so that piglets cannot escape. hornfels horn·fels n. pl. hornfels A fine-grained metamorphic rock composed of quartz, feldspar, mica, and other minerals, formed by the action of intrusive rock upon sedimentary rock, especially shale. layer.The mineralization of this copper-iron skarn is similar to that of the large copper-iron skarns of the Yerington, Nevada Yerington is a city in Lyon County, Nevada, USA. The population was 2,883 at the 2000 census and in 2005 has been estimated at 2,980[1]. It is named after Henry M. Yerington, Superintendent of the Virginia and Truckee Railroad from 1868 to 1910. , copper porphyry-skarn deposit and the Company considers the mineralization at South Bolivar to be analogous to that of Yerington. The Yerington skarns are large tonnage TONNAGE, mar. law. The capacity of a ship or vessel. 2. The act of congress of March 2, 1799, s. 64, 1 Story's L. U. S. 630, directs that to ascertain the tonnage of any ship or vessel, the surveyor, &c. and high grade, such as the Pumpkin pumpkin, common name for the genus Cucurbita of the family Cucurbitaceae (gourd family), a group that includes the pumpkins and squashes—the names may be used interchangeably and without botanical distinction. C. Hollow (Lyon) skarn reported by the Nevada Bureau of Mines and Geology at 250 million tonnes averaging 0.3% Cu and 40% Fe with a high grade zone of 29 million tonnes averaging 1.2% Cu.Dia Bras is targeting similar tonnes and grades in its ongoing exploration of the South Bolivar copper-iron skarn. Dr. Thomas L. Robyn, Executive Chairman, is the Qualified Person for technical statements made in this release. Method of analysis The analyses were conducted at Chemex Laboratories in Vancouver by fire assay for precious metals Precious Metals Valuable metals such as gold, iridium, palladium, platinum, and silver. Notes: Investing in precious metals can be done either by purchasing the physical asset, or by purchasing futures contracts for the particular metal. and atomic absorption for base methods. Upcoming program Dia Bras plans to drill 16,000 meters of diamond core holes at Bolivar during 2006, most of which will be in the vicinity of the South Bolivar skarn and directed at a major increase in the drilled volume of the copper-iron skarn, as recommended by Roscoe Postle to complete their 43-101 resource estimate.In addition, some of the holes will be directed to test the bedrock Cu-Mo-W geochemical anomaly Abnormality or deviation. Pronounced "uh-nom-uh-lee," it is a favorite word among computer people when complex systems produce output that is inexplicable. See software conflict and anomaly detection. that has been identified in the South Bolivar area as a result of the Company's bedrock sampling program.The anomaly is inferred to be located above the copper porphyry Porphyry, Greek scholar Porphyry (pôr`fĭrē), c.232–c.304, Greek scholar and Neoplatonic philosopher. He studied rhetoric under Cassius Longinus and philosophy under Plotinus. intrusion that has generated the copper-zinc-iron-gold-silver mineralization on the Bolivar property, and the drilling is directed at discovery of this mineralized min·er·al·ize v. min·er·al·ized, min·er·al·iz·ing, min·er·al·iz·es v.tr. 1. To convert to a mineral substance; petrify. 2. To transform a metal into a mineral by oxidation. 3. intrusion.Additional holes will define the copper mineralization at the Increible breccia breccia: see conglomerate. breccia Coarse sedimentary rock consisting of angular or nearly angular fragments larger than 0.08 in. (2 mm). Breccia commonly results from processes such as landslides or geologic faulting, in which rocks are fractured. body. Many more high priority targets along the 3 kilometres long skarn horizon such as La Increible, La Montura, El Gallo, La Pequena, will also be explored during 2006.Please refer to the other priority targets map attached. About Dia Bras Dia Bras is a Canadian mining and exploration Company focused on precious and base metals in the State of Chihuahua, northern Mexico. The Company continues exploration and the active development of its two key projects - Bolivar and Promontorio - in the world-renowned Sierra Madre Sierra Madre, city, United States Sierra Madre (sēĕr`ə mä`drā), residential city (1990 pop. 10,762), Los Angeles co., S Calif., at the foot of Mt. Wilson; inc. 1907. There is some light manufacturing. mineral belt. The Company trades on the TSX Venture Exchange TSX Venture Exchange Originally called the Canadian Venture Exchange (CDNX), this was a result of the merger of the Vancouver and Alberta stock exchanges. The goal of TSX Venture Exchange is to provide venture companies with effective access to capital while protecting investors. , under the symbol "DIB". For more information and a view of our Mexican exploration activity video, please consult our Web Site at diabras.com If you would like to receive press releases via email please contact info@diabras.com Please specify "Dia Bras press releases" in the subject line. Forward-looking statements forward-looking statement A projected financial statement based on management expectations. A forward-looking statement involves risks with regard to the accuracy of assumptions underlying the projections. : Except for statements of historical fact, all statements in this news release, without limitation, regarding new projects, acquisitions, future plans and objectives are forward-looking statements which involve risks and uncertainties. There can be no assurance that such statements will prove to be accurate; actual results and future events could differ materially from those anticipated in such statements. Maps are available on CCNMatthews' website at the following addresses: http://www.ccnmatthews.com/docs/DIA_Map1.pdf ; http://www.ccnmatthews.com/docs/DIA_Map2.pdf The TSX Venture Exchange does not accept responsibility for the ad equacy or accuracy of this press release. Dia Bras Exploration Inc. (TSX VENTURE:DIB) |
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