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

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Guiana Shield‣ At least 14 arcs identified todate with arc andback-arc signatures.‣ Granitoids are generallypoorly understoodModified from Bardoux et al. 1998
frequencyU-Pb zircons Eastern Guiana ShieldFrench Guiana2140 Ma2180 MaAmapaPaleoproterozoic QuartziteSE French Guiana700 1200 1700 2200 2700 3200MaModified from Bardoux et al. 1998
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 and 12: ObuasiSouthern Ashanti BeltBogosoPr
Page 13 and 14: BUVTDD013:27.5 m @ 3.7g/tSBuesichem
Page 15 and 16: • Meta-sediments(carbonaceous sha
Page 17 and 18: Imbricate Thrust systemWest50 m Mai
Page 19: Common themes‣ All mesothermal or
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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