This area includes metasediments of basement complex of Precambrian to Early Paleozoic age. The bed rock in most places composed of slate/slaty shale interbedded with metasandstone overlain by deformed concretionary laterite to laterite clay soil.
The lateritic clay soil occurrence extensively covers the area especially
around the Kakini Hill and its surroundings. The Kakini Hilltop shows steep
sided, flat topped, laterite-capped hill with thickness of 7m.
The gold deposit in this area is an alluvial in stream gravel and plain but
alluvial at hillside and slope. By observation from old pit holes, and making
test pitting, gold deposit was found from ground surface in laterite soil to
depth 1-2m at the plain and to depth 7-9m at the hill top. The lower layer of
laterite soil has more concentration of gold than upper soil layer; the
average thickness of paydirt is about 1m with more thickness at the hillside.
The concentration varies from place to place. In stream sediments it is about
2.5g/m3 while in the plains itís about 1.0g/m3. The average concentration is
about 1-1.5g/m3 of 1m paydirt. The gold deposit extends more than 1sq km
around Kakini Hill. Most of the gold is powder and flakes with some nuggets.
From the above observation, the area around the Kakini Hill is an interesting prospect for mechanized mining operation with the gold concentration of 1-2g/cm3 of ore in 1sq.km with an average depth of 1.0m.
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