The Baja licence area is located north-northwest of Blama, which is approximately 20km west of Kenema, and is valid until the 12th December 2020. The licence (EL87/2011) covers an area of approximately 59.51km2 and is located in the Kando Leppeama and Simbaru Chiefdoms in the Kenema District, Eastern Province and in the Komboya, Badjia and Baoma Chiefdoms in the Bo District, Southern Province of Sierra Leone.
The main part of the area lies to the west of the Sewa River just south of Boajlbu to about 5km south of Baoma Oil Mill and enclosing parts of the Sewa River mainly in the Baoma sector.
The area lies within parts of P.K. Hall’s ‘Diamond Fields of Sierra Leone’ Blocks 7, 8 and 9. The largest part of the area is within Block 8. P.K. Hall reported that: “The Kobonde stream carried diamonds from its confluence with the Bofioye for a distance of about 1.6km downstream, but the only workable deposits have been beside the village of Kobundala. Here, values up to 1.2 carats per cubic yard were found in an area about 800 feet by 200 feet which included not only a section of the Kobondo channel and flats, but also a small swamp opposite the village. Diamonds were found upstream, in the Bofioye.
The Baja exploration licence is considered prospective for both gold and diamonds with some artisanal gold workings have been reported by GSR Africa to have been observed within the licence area and the Sewa River is currently worked for diamonds elsewhere.
Processing and initial interpretation of the airborne magnetic data has identified a number of strong ENE-WSW trending structural trends beneath the transported cover, consistent with the regional structures hosting kimberlite dykes and known diamond resources located within neighbouring tenements.
First phase field exploration activities on the Baja Project is ongoing with the exploration team undertaking regional stream sediment sampling, mapping and geochemical sampling within priority areas defined by these interpreted structures.
Analysis of these samples will be prioritised following review of data and earlier preliminary sampling for efficiency and forwarded to Diatech Laboratories, a well renowned diamond laboratory located in Perth, Australia, for processing and indicator analysis.
Further work to include:
- Pitting of alluvial anomalies
- Extraction and panning of gravels at 500m intervals along stream
- A grid is to be placed over terraces identified to be diamondiferous or containing kimberlite indicator minerals
- Intervals to be determined based on the width of terraces, perceived variability of the deposit and other parameters