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The feature concession within the Bourdala concessions is the TD concession, located in the southwestern part of the block. This is an area of extensive historical orpaillage (the local form of hand mining) dating back 100 to 200 years. It is also an area of considerable recent work, with over 1,500 female orpailleurs active throughout the summer of 2006. The female orpailleurs work the surface terrain, whereas the men dig pits, to search for and recover gold. The women in this area have so far worked an area of nearly 50 metres by 340 metres covered by laterite. Laterite is a hard rock-like crust that can form on the surface in a tropical or forested region with a warm to temperate climate.
The geology consists of a 25 metre wide, north-south, diorite dyke within Birimian metasediments. A large zone of small and very large pits occurs west of the dyke. A 2003 diamond drill hole, TD 02-03, spotted 75 metres west of the dyke and drilled toward it, intersected 21.60 metres of 1.07 g/t gold. A second drill hole, TD 03-03, drilled 170 metres west of the dyke, intersected 16.40 metres of 1.51 g/t gold.
A RAB drill program is planned for this area to define the extent of gold mineralization in the surface saprolite.
Maps
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