Gold in the Early Paleoproterozoic Birimian Shield, West ... - ADIMB

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Polyphase deformation Ashanti beltBogosuBuesichemWassaPresteaWassa20 kmModified from Perrouty et al, 2011
BUVTDD013:27.5 m @ 3.7g/tSBuesichem (SW Ashanti Belt)Au Grade Thickness Long Section True WidthBUVTDD037:29.6 m @ 3.1g/tBUVTDD079:31.2m @ 3.0g/tBUVTDD016:25.4 m @ 4.0g/tBUVTDD0156:21.0m @ 3.4g/tBUVTDD092:13.6m @ 6.7g/tCurrent PitBUSRC028:25.5m @ 2.8 g/tN2011YE PitDesignBUVTRC047:20.0m @ 4.9g/tBUVTDD031:6.2m @ 2.1g/tBUVTDD149:19.6m @ 4.9g/tBUVTDD0177:8.7 m @ 2.7g/t BUVTDD053:28.0 m @ 2.1g/tBUVTDD176:‣ Left-lateral flexure6.1 m @ 3.9g/t‣ Bend dilationDrill Target‣ South plung<strong>in</strong>g shootsBUVTDD098:27.5m @4.0g/tBUVTDD086:24.7m @ 2.69g/tBUVTDD038:9.3 m @ 8.2g/tBUVTDD089:8.6m @ 7.9g/tBUVTDD148:9.8 m @ 16.6g/tBUVTDD0152:32.5m @ 3.8g/tBUVTDD144:22.3m @ 9.3g/tBUVTRC085: 28.5m @ 4.0g/tTypical Ashanti shear oreBUVTDD0127:24.1m @ 3.9g/t$1300$1500Pit ShellsRamp TargetBuesichem Grade Thickness(g\t)*mCourtesy M. Wasel, <strong>Gold</strong>en Star Resources
Page 5 and 6: GEOLOGYBRGM 2005Siguiri Basin3.3-2.
Page 7 and 8: Main gold settings• Mesothermal o
Page 9 and 10: Northern Districts (~100 Moz)Northe
Page 11: ObuasiSouthern Ashanti BeltBogosoPr
Page 15 and 16: • Meta-sediments(carbonaceous sha
Page 17 and 18: Imbricate Thrust systemWest50 m Mai
Page 19 and 20: Common themes‣ All mesothermal or
Page 21 and 22: frequencyU-Pb zircons Eastern Guian
Page 23 and 24: TransAmazonian Tectonic FrameworkFr
Page 25 and 26: Rosebel GeologicalCross-sectionBrid
Page 27 and 28: Early Paleoproterozoic orogens ofAf

Gold in the Early Paleoproterozoic Birimian Shield, West ... - ADIMB

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