Final Report - Geoscience BC

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Geology and alteration related to mineralization• What defines mineralized zones at Mount Milligan?– Boundaries of monzonite stock, and associated dikes– Mineralization in permeable units, hydrothermal breccias, conglomerates,upper and lower trachytes, faults– Proximal biotite-Kspar-magnetite-chalcopyrite (‘potassic’ alteration)From Jago (2008, MSc thesis, unpublished)DWBX ZoneWBX ZoneMBX Zone“66” Zone– Distal epidote-albite-actinolite-pyrite (‘propylitic’ alteration)– Shallow, low T carbonate-sericite alteration (anomalously high gold grades;permeable pathways)Figure 5. Geology and alteration related to mineralization15
Susceptibilty data for rock types mapped at Mount Milligan12000200040002006004003000.001 0.01 0.1 1 10 100 1000Magnetic Susceptibility x 10 -3 SI UnitsAndesiteAndesite/monzonitehybridMonzoniteDioriteHydrothermalBrecciaTrachyteFaulted materialWhy multiple populations?Figure 6. Susceptibility data for rock types mapped at Mt. Milligan16
Page 3 and 4: … modelling the earth310 Victoria
Page 5 and 6: … modelling the earthList of Figu
Page 7 and 8: 1. IntroductionPhysical rock proper
Page 9 and 10: 2. Project DeliverablesDeliverables
Page 11 and 12: GSC in the Fraser Delta region (dat
Page 13 and 14: (c)Data Summary by LocationArea of
Page 15: directories: ‘Input Data’, ‘O
Page 18 and 19: 4. RPDS Application4.1. General Ove
Page 20 and 21: Wireline DataRPDSSample DataProcess
Page 22 and 23: 4.3. Web InterfaceAll data within R
Page 25 and 26: Appendix 1 - Rock Properties Worksh
Page 27 and 28: Appendix 2 - DVD Data ArchiveSee at
Page 29 and 30: … modelling the earthTable of Con
Page 31 and 32: … modelling the earth
Page 33 and 34: geophysical data. The geophysical m
Page 35 and 36: 3. Physical PropertiesProperty Meth
Page 37 and 38: surveys have excellent resolution o
Page 39 and 40: surveys are commonly calibrated by
Page 41 and 42: 5. Case Study of Mt. Milligan Porph
Page 43 and 44: merge into the background. Deposits
Page 45: Mount Milligan geologyFrom Jago (20
Page 49 and 50: 4 1 9 . 7 12 55 07 51 0 01 2 51 5 0
Page 51 and 52: Mount Milligan synthetic models for
Page 53 and 54: Unconstrained synthetic model inver
Page 55 and 56: Detection of other targets - lower
Page 57 and 58: Detection of other targets - buried
Page 59 and 60: Mt. Milligan - unconstrained invers
Page 61 and 62: Constrained Inversion:Unconstrained

Final Report - Geoscience BC

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