中南大学：《高级矿床学》 第4讲 Sudbury勘探模式的演变：通向下盘

Sudbury勘探模式的演变:通向下盘 Evolution of the Sudbury Exploration Model; Pathways to Footwall ore 2006-03-07 S.A. Mclean. P geo. D. Richardson. P geo J. Grant PGeo R. FOY, P Geo Falconbridge有限公司

Sudbury勘探模式的演变：通向下盘 Evolution of the Sudbury Exploration Model; Pathways to Footwall Ore S.A.Mclean,P.Geo. D.Richardson,P.Geo. J.Grant,P.Geo. R.Foy,P.Geo. Falconbridge有限公司 2006-03-07

Forward-Looking Statements Falconbridge cautions that statements made to describe the Company's intentions, expectations or predictions may be forward-looking statements within the meaning of securities laws. The Company cautions that, by their nature forward-looking statements involve risk and uncertainty and that the Company's actual results could differ materially from those expressed orimplied in such statements. Reference should be made to the companys most recent Annual Information Form filed with Canadian securities regulatory authorities (and available at www.sedar.com)foradescriptionofthemajorriskfactors All production volumes and reserves and resources in metric tonnes

Forward-Looking Statements • Falconbridge cautions that statements made to describe the Company’ s intentions, expectations or predictions may be “forward-looking statements”within the meaning of securities laws. The Company cautions that, by their nature, forward-looking statements involve risk and uncertainty and that the Company’ s actual results could differ materially from those expressed orimplied in such statements. Reference should be made to the Company’ s most recent Annual Information Form filed with Canadian securities regulatory authorities (and available at www.sedar.com) for a description of the major risk factors. All production volumes and reserves and resources in metric tonnes

Sudbury location Sudbury Toronto 5K 3DⅤ iew of the Sudbury basin Looking west Sudbury

Sudbury Location 3D View of the Sudbury Basin Looking West Sudbury

The Magnificent Sudbury basin Over 100 years of mining and Exploration 1. 5 billion tonnesofpast production reserves and resources Exploration and mining active today as ever Mineral deposits continue to be discovered regular y

The Magnificent Sudbury Basin • Over 100 years of Mining and Exploration • 1.5 billion tonnesof past production & reserves and resources • Exploration and mining active today as ever • Mineral deposits continue to be discovered regularly

Sudbury Ore Environments PLAN NORTH Offset Deposits Concentric Offset Footwall ∠ Sudbury Breccia Deposits Zones Contact Embayment Deposits without radial offset Embay with radi OFFSET SIC Quartz diorite Leucocratic norite Mafic r norite CONTACT ZONE FOOTWALL Massive sulphide Granitoid Footwall breccia #!# Disseminated Inclusion bearing ulphide Footwall sublayer norite Sudbury breccia Breccia After, Lightfoot et al., 1997

Sudbury Ore Environments After; Lightfoot et.al., 1997

Value of sudbury oreSUDBURY SUDBURY MINERALIZATION VALUE 70000 60000 500.00 400.00 三30000 OfSet 20000 Contact 10000 Metal Price Assumptions (Uss) Ni(S/1b) Cu(S/Ib) Co($/1b) Pt (S/oz) Pd (S/oz) Au(S/oz) Ag($/oz) 3.35 500 350 325

Value of Sudbury OreSUDBURY

Falconbridge Production 3.00 2.50 CuNi 2.00 0.80 1.50 l.00 0.00 Jean

Falconbridge Production

Characteristics of Footwall Deposits Metal zoning Styles mineralization

Characteristics of Footwall Deposits • Metal Zoning • Styles of Mineralization

Footwall mineralization Ni Rim South Deposit Granodiorite Contad Mineralization onte Transitional Footwall zone Felsic gneiss SLN gBX Bornite. Millerite Halo Core Footwall Nickel Rim Schematic Looking Northwe st

Footwall Mineralization

Nickel Rim South -Metal Zoning FW Ni Rim Surface Topography and Resource Outlines Looking Northwest Shafts-In Progress Perspective for Metal Fractionation Diagrams

Nickel Rim South –Metal Zoning