Gold in the Early Paleoproterozoic Birimian Shield, West ... - ADIMB
Gold in the Early Paleoproterozoic Birimian Shield, West ... - ADIMB
Gold in the Early Paleoproterozoic Birimian Shield, West ... - ADIMB
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Sefwi Belt• Ahafo on north side of Sefwigreenstone belt on <strong>the</strong> east marg<strong>in</strong>of <strong>the</strong> broad Comoe Bas<strong>in</strong> filledprimarily by epiclastics.• Complex package of back-arc maficvolcanic rocks, sediments, and<strong>in</strong>trusive stocks (<strong>Birimian</strong>). Extremerheological contrasts.• Northwestly thrust<strong>in</strong>g alongKenyasi fault with major offsets.Steep metamorphic gradients.• Multiple ore shoot geometries thatare generally shallow plung<strong>in</strong>g• Bibiani and Chirano deposits about50km south <strong>in</strong> similar sett<strong>in</strong>gCourtesy D. F<strong>in</strong>n, Newmont14
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