PEBBLES IN THE TARKWAIAN BANKET CONGLOMERATE: INFERENCE OF GOLD GRADE AND PALEO-TRANSPORT DIRECTION

Tarkwaian Banket conglomerate at Tarkwa area contains rounded to sub - rounded quartz pebbles of which the B reef horizon has larger pebble sizes,showed preferred northeast - southwest orientation with their longest axes in the north to northwest and probably of SE pal eo - transport direction. Interestingly,samples from zones with pebbles trending in northeast - southwest direction s have higher gold grades. Pebbles of the B reef,trend tow ards the northwest and probably came from the east,and characterize highest average gold grade of 2.5 g/t while those with the averagetrend of SW were associated with lowest average grade of 1.95 g/t. P ebbles in the C reef trend towards the north to northwest and could have travelled from the east;those with the averagetrend of SE had a higher average grade of 1.12 g/t compared to the lower grade variety of .73 g/t which trend s NW .

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