First-Stage Inferred Resource Estimate Successfully Completed On Collahuasi's Rosario Oeste Zone; Large, High Quality Deposit Could be Added to Collahuasi Reserve Base.TORONTO -- Falconbridge Limited (TSX TSX Toronto Stock Exchange (TSE before April, 2002) TSX Transfer from Stack Pointer to Index TSX True Space Extension :FAL FAL FRAME (Fund for the Replacement of Animals in Medical Experiments) Alternatives Laboratory FAL Bundesforschungsanstalt für Landwirtschaft (federal research institute for agriculture, Braunschweig, Germany) .LV)(NYSE NYSE See: New York Stock Exchange :FAL) and CBDIC - A large, high quality deposit could be added to Collahuasi's reserve base, the joint-venture partners of Compania Minera Dona Ines de Collahuasi SCM (1) (Software Configuration Management, Source Code Management) See configuration management. (2) See supply chain management. (Collahuasi), were pleased to announce today. The partners include Anglo American plc Anglo American plc (LSE: AAL, JSE: ANGLO) is a world-wide group of companies, originally founded in South Africa as a mining enterprise but now extending into other areas. Natural resources remains the focus of its operations. , Falconbridge Limited and a Japanese consortium led by Mitsui & Co., Ltd. Inferred Resource Estimate The first stage of the Inferred Resource estimate on Collahuasi's Rosario Oeste zone has been completed. Exploration results indicate the Rosario Oeste zone contains an Inferred Mineral Resource estimated at 248 million tonnes grading 1.54% copper at a 0.4% copper cut-off cut-off Anesthesiology The point at which elongation of the carbon chain of the 1-alkanol family of anesthetics results in a precipitous drop in the anesthetic potential of these agents–eg, at > 12 carbons in length, there is little anesthetic activity, . The partners believe that these exploration results further demonstrate the potential of developing resources at Collahuasi. The mineral resource is located in the central part of the Rosario Oeste zone, and only 300 metres from the projected edge of the Rosario open pit. The 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. zone, as currently defined, remains open to the north, south and at depth, and is thought to occupy approximately 50% of the total prospective area. If developed, Rosario Oeste would significantly leverage the Company's operation with its ability to capitalize on Cap´i`tal`ize on` v. t. 1. To turn (an opportunity) to one's advantage; to take advantage of (a situation); to profit from; as, to capitalize on an opponent's mistakes s>. existing infrastructure at Collahuasi. The zone and surrounding lands that are the subject of an on-going exploration program are part of wholly-owned concessions of Collahuasi. 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. Copper mineralization is principally contained in a structurally controlled chalcocite chalcocite Sulfide mineral, Cu2S, that may be an important ore of copper. It belongs to a group of sulfide minerals formed at relatively low temperatures. Chalcocite alters to native copper and other copper minerals. supergene su·per·gene n. A group of closely linked genes occupying a large chromosomal segment and frequently functioning as a genetic unit. blanket that formed over a swarm of high sulfidation veins. These results indicate potential to extend the life of the current operation, and add leachable resources to the existing reserve base. Portions of the resource contain elevated arsenic arsenic (är`sənĭk), a semimetallic chemical element; symbol As; at. no. 33; at. wt. 74.9216; m.p. 817°C; (at 28 atmospheres pressure); sublimation point 613°C;; sp. gr. (stable form) 5.73; valence −3, 0, +3, or +5. content that will be subject to further study. Time domain electromagnetic (TEM TEM 1. transmission electron microscope. 2. triethylenemelamine. 3. transmissible encephalopathy of mink. ) geophysical surveys Geophysical survey refers to the systematic collection of geophysical data for spatial studies. Geophysical surveys may use a great variety of sensing instruments, and data may be collected from above or below the Earth's surface or from aerial or marine platforms. over the target area demonstrate strong correlation between anomalies and the known copper mineralization. A strong, untested anomaly has been defined about 600 metres south of the Rosario Oeste resource. The geophysical survey results also offer new and untested anomalies immediately south and southwest of the Rosario deposit. Methodology and Compliance The new resource estimate incorporates exploration results that fall inside the defined block, from historic drill campaigns carried out mainly in 1991-1992 together with the results of an on-going drill campaign initiated earlier this year. This new estimate incorporates the results of eight diamond-drill core holes from the 2005 campaign totaling 4,658 metres, together with 12 core holes completed in the period 1991-1992, totaling 6,248 metres. The new resource estimate in the Rosario Oeste zone was estimated by Collahuasi using the drill results obtained from approximately 150 by 250 metre centers, with holes ranging from 150 to 800 metres in depth. A table is attached showing composite intervals for all (20) drill holes incorporated in the estimation of the Rosario Oeste central area. This Inferred Mineral Resource estimate has been prepared in accordance with JORC JORC Joint Ore Reserves Committee standards on Mineral Resources Noun 1. mineral resources - natural resources in the form of minerals natural resource, natural resources - resources (actual and potential) supplied by nature and Ore Reserves, and is compatible with CIM (1) (Computer-Integrated Manufacturing) Integrating office/accounting functions with automated factory systems. Point of sale, billing, machine tool scheduling and supply ordering are part of CIM. Definitions on Mineral Resources and Mineral Reserves. The resource estimate with different total Cu (%TCu) cut-off grades is as follows:
"ROSARIO OESTE PROJECT"
SECONDARY SULPHIDE UNIT
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Cut-off (%TCu) KTonnes %TCu
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0.0 256,000 1.50
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0.2 255,000 1.50
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0.3 252,000 1.51
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0.4 248,000 1.54
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0.5 241,000 1.57
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0.7 226,000 1.63
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Exploration Program Five diamond-drill machines are currently working on the exploration program. More than 11,000 metres of drilling had been completed as of September 30, or approximately 50% of the approved program approved program Grad education An education program which is approved by a overseeing body–eg, a licensing or professional board or governmental agency through the end of 2005. Collahuasi is considering extending this program to complete 66,000 metres at the end of 2006. Although Rosario Oeste is the main focus of the currently diamond-drill campaign, exploration drilling is also in progress on the Poderosa zone, located immediately southeast of the Rosario operation, where TEM geophysical surveys have yielded strong anomalies.
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Table 1 - Drill Holes Campaign 1991 - 1992
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Hole No From (m) To (m) Interval Length % Cu As (ppm) Comments
length (m) hole (m)
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GC-191 234.00 375.76 141.76 375.76 1.64 873 Secondary
enrichment
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GC-193 284.00 460.00 176.00 629.52 1.19 941 Secondary
enrichment
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GC-195 296.00 381.00 85.00 1.60 818 Secondary
enrichment
427.95 624.64 196.69 624.64 1.10 117
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GC-198 228.00 367.52 139.52 10.40 17453 Secondary
enrichment
402.52 519.11 116.59 519.11 1.92 180
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GC-201 174.65 308.00 133.35 760.97 1.86 145 Secondary
enrichment
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GC-203 280.00 470.00 190.00 678.18 1.83 415 Secondary
enrichment
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GC-204 215.00 324.00 109.00 423.66 1.27 245 Secondary
enrichment
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GC-205A 286.00 290.00 4.00 1.57 Secondary
enrichment
460.00 494.00 34.00 521.24 0.63
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GC-206 40.00 60.00 20.00 0.38 Secondary
enrichment
140.15 148.00 7.85 149.14 0.56
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GC-207 120.00 126.00 6.00 0.76 Secondary
enrichment
141.25 202.00 60.75 1.10
234.00 252.54 16.54 0.59
270.00 278.00 8.00 1.09
316.00 328.00 12.00 339.77 0.72
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GC-216 396.80 488.00 91.20 581.94 2.13 234 Secondary
enrichment
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GC-217 388.00 530.00 142.00 1.20 735 Secondary
enrichment
565.12 644.77 79.65 644.77 0.99 99
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Table 2 - Drill Holes Campaign 2004 - 2005
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Hole No From (m) To (m) Length (m) Length % Cu As (ppm) Comments
hole (m)
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GC-220 198.00 246.00 48.00 1.50 77 Secondary
enrichment
300.00 332.00 32.00 2.41 117
392.00 560.00 168.00 560.06 0.80 110
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GC-221 144.00 180.00 36.00 1.29 214 Secondary
enrichment
236.00 258.00 22.00 1.01 98
270.00 318.00 48.00 1.02 138
334.00 472.00 138.00 1.24 276
472.00 626.00 154.00 0.59 84
626.00 671.00 45.00 671.40 0.92 160
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GC-222 362.00 448.00 86.00 1.54 116 Secondary
enrichment
556.00 578.00 22.00 1.00 33
592.00 644.00 52.00 1.49 147
666.00 694.00 28.00 800.00 1.26 215
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GC-223 222.00 250.00 28.00 0.91 49 Secondary
enrichment
278.00 294.00 16.00 0.98 88
303.00 407.00 104.00 678.90 1.62 588
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GC-225 360.00 410.00 50.00 546.10 0.98 173 Secondary
enrichment
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GC-226 416.00 519.80 103.80 519.80 1.57 433 Secondary
enrichment
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GC-227 132.15
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GC-227A 348.00 374.00 26.00 1.59 61 Secondary
enrichment
398.00 446.00 48.00 0.99 210
484.00 552.00 68.00 0.83 61
622.00 672.00 50.00 750.00 1.39 66
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QUALITY CONTROL Drill core samples from the 2005 drilling program were assayed by Cesmec Laboratory, an independent facility located in Iquique, Chile, which is certified See certification. by ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 9001-2000 standards. All drill samples utilized one-half of core samples from the 2005 campaign, and were subject to established QA/QC QA/QC Quality Assurance/Quality Control procedures that includes the use of blanks, mine specific standards, and duplicates. Additionally, check assays were made at ALS Als (äls), Ger. Alsen, island, 121 sq mi (313 sq km), Sønderjylland co., S Denmark, in the Lille Bælt, separated from the mainland by the narrow Alensund. and CIMM CIMM Canadian Institute of Mining and Metallurgy CIMM Centro de Informação Metal Mecânica (Brazil) CIMM Commodity Integrated Material Manager CIMM Configuration; Installation; and Maintenance Manual laboratories in Santiago, Chile Santiago, officially Santiago de Chile (Spanish: (helpinfo)), is the capital of Chile, and the center of its largest conurbation (Greater Santiago). . Assays from previous work were performed by SGS SGS Société Générale de Surveillance SGS Symantec Gateway Security (appliance) SGS School of Graduate Studies SGS Subgrid Scale SGS Singapore Government Securities SGS Shell Global Solutions laboratory, an independent facility located in Santiago, Chile. Compania Minera Dona Ines de Collahuasi (CMDIC) is a joint-venture company held by Falconbridge Limited (44%), Anglo American plc (44%), and a Japanese consortium led by Mitsui. Falconbridge Limited is a leading copper and nickel company with investments in fully-integrated zinc and aluminum assets. Its primary focus is the identification and development of world-class copper and nickel mining deposits. It employs 14,500 people at its operations and offices in 18 countries. Falconbridge's common shares are listed on the New York Stock Exchange New York Stock Exchange (NYSE) World's largest marketplace for securities. The exchange began as an informal meeting of 24 men in 1792 on what is now Wall Street in New York City. (FAL) and the Toronto Stock Exchange Toronto Stock Exchange (TSE) Canada's largest stock exchange, trading approximately 1,200 company stocks and 33 options. (FAL.LV). Falconbridge's website can be found at www.falconbridge.com. Sulfidmalm A/S is a wholly owned subsidiary Wholly Owned Subsidiary A subsidiary whose parent company owns 100% of its common stock. Notes: In other words, the parent company owns the company outright and there are no minority owners. of Falconbridge Limited. Falconbridge Limited (TSX:FAL.LV) (NYSE:FAL) |
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