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Alkalic porphyries – exploration implicationsConsider scale• In interpreting exploration datasets,and planning detailed, targetedsurveys• Smaller footprint deposits• Subtle geophysical (IP) targets, needgeological controlUse deposit-scale observationsto develop mineralization modelsfor the district• Deposit-scale observations critical tounderstanding relationshipsbetween geology, geophysical, andgeochemical responses
Alkalic Porphyry Deposits inBritish ColumbiaDeposit- to District-scale characteristicsFionnuala Devine, October 2011
Page 1 and 2: Alkalic Porphyry Deposits inBritish
Page 3 and 4: Porphyry occurrences in BCMapped Te
Page 6 and 7: Calc-alkalic porphyry - alteration
Page 9 and 10: Examples from theDuckling Creek Sye
Page 11 and 12: LorraineTeck Resources (Teck Cominc
Page 13 and 14: Alkalic IntrusionsLorraineStage 1:p
Page 16 and 17: Reactivity of Host RocksLorraineSta
Page 18 and 19: Calcic and Calc-Potassic Alteration
Page 20 and 21: Sulphide ZonationTeck Cominco, 2007
Page 22 and 23: Alkalic porphyries - exploration cr
Page 24 and 25: Importance of Scalewww.cumtn.com
Page 26 and 27: Magnetite-bearing mineralizationPit
Page 28 and 29: MAGENTICSStrongly magnetic intrusiv
Page 30 and 31: TITAN 24Pit 1&3 Historical product9
Page 32: GEOCHEMISTRYEarly Jurassic-Porphyry
Page 35: Alkalic porphyries - exploration im

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