new exploration authorisations and the identification of
new areas for further applications. Preliminary
reconnaissance exploration has commenced with remote
sensing interpretations, field and regolith mapping
together with regional soil sampling programmes.
The company signed a second joint venture with OMRD
on the Diamou and Seriba-Sobara permits to the
northwest of Morila. Exploration to date has concentrated
on the integration of previous results and a generative
exercise which has resulted in the identification of 24
targets. Field work, which ranges from mapping and
lithosampling to soil geochemistry and pitting, has been
implemented over eleven of these targets providing
information to assist with the planning of a RAB drilling
programme to be executed in February 2006.
SENEGAL
The Senegal portfolio consists of four permits covering
1 326km
2
, within the Sabodala volcano-sedimentary
belt in the east of the country. The company has been
systematically evaluating a portfolio of 31 targets and
during the course of the year three of these were
subjected to reconnaissance drilling, five were advanced,
eight newly identified and seven rejected.
At Bambaraya, further work has identified a wide zone
of iron carbonate alteration associated with mineralisation
and new trenches 100 metres north and 150 metres
southwest of the main zone have intersected
significant mineralisation (BBTR04: six metres at
1.76g/t, four metres at 5.48g/t and 12 metres at 4.06g/t;
BBTR06: 12 metres at 2.34g/t).
Infill drilling at Sofia has increased knowledge of the
target. There is a variation in the mineralisation from
broad, low grade envelopes to narrow, high grade
intercepts along the 3 400 metre anomalous corridor.
At present, the interhole spacing is 400 metres and
between the best holes drilled in terms of results
(44 metres at 2g/t and six metres at 9.5g/t), there is a
combined strike of 1 600 metres untested. At Tombo,
a small low grade resource has been identified.
BURKINA FASO
In 2004 the company recommenced exploration in
Burkina Faso with two permits, Danfora and Kiaka.
During 2005, a new countrywide generative study was
completed. The results of this study revealed a major
north-northeast structure on the eastern side of the
country called the Markoye Shear, which continues into
Ghana and is highly prospective. This major structure
has associated northeast splays and six gold deposits/
advanced projects with an accumulated gold resource
of eight million ounces. Eight new permits covering
2 025km
2
consolidate the company’s land position over
the southern part of this fault system where there is
good infrastructure and water supplies. Early stage
reconnaissance work has started on these eight permits
with remote sensing interpretations, geological and
regolith traverses together with regional soil and stream
sediment sampling.
At Kiaka, the first permit awarded, a three hole
reconnaissance diamond drilling programme has been
completed along a two kilometre segment of an overall
4.5 kilometre northeast trending mineralised structure
within the permit. Results from the southern part indicate
a thin mineralised zone albeit with moderate to high
grades. To the north, where the zone is open along
strike, a broad zone with generally a lower tenor of
mineralisation has been outlined.
1 Randgold Resources has adopted a more aggressive policy
towards regional exploration.
2 The resource base at Loulo grew by 24% during the year.
Randgold Resources    Annual Report 2005 27