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Sabodala is situated within the West African Birimian geological gold belt in a region of Senegal that has only recently been opened for mining and exploration but already established itself as significant gold camp with more than 10 million ounces discovered. 

Sabodala Gold Mine

Largest Producing Gold Mine in Senegal, West Africa

Since its initial public offering in 2010, Teranga has produced more than 1.5 million ounces of gold from its flagship operation Sabodala, located in southeastern Senegal.  As of June 30, 2018, Sabodala had a reserve base of 2.5 million ounces of gold.  Sabodala has a remaining mine life of 13 years.  Between 2018 and 2022, Sabodala is expected to produce over one million ounces of gold and generate $230 million in free cash flow from 2018 to 2022.

Geology and Mineralization

Regional Geology

The Sabodala Mining Concession and the surrounding exploration permits are located within the highly prospective Kedougou-Kenieba Inlier which forms part of the Paleoproterozoic age Birimian Terrane of the West African Craton. The permits straddle the volcanic-dominated Mako Supergroup in the west and the sediment-dominated Diale-Dalema Supergroup to the east.

The Mako and Diale-Dalema supracrustal sequences are intruded by a series of variably deformed granitoid intrusions. Lithologies in the region are affected mainly by lower green schist grade metamorphism. Northeast trending intermediate to felsic and later, post-tectonic mafic dykes are present throughout the region, the latter forming prominent linear magnetic features. Felsic and intermediate composition dykes are often spatially associated with shear zones hosting gold mineralization, and locally are host to significant gold mineralization themselves.

Local Geology

The Sabodala deposit is situated in the Mako Volcanic Belt. Locally the volcanics are intruded by subvolcanic dolerite and gabbro sills and dykes and also quartz feldspar porphyry and rhyolite dykes. Interflow sediments parallel the layering in the sequence. The Sabodala Shear Zone is approximately 2km wide and is identified by a subtle magnetic trend that extends through the 7km long permit and transects volcanic stratigraphy. The shear zone plays an integral part in the localization of gold mineralization. 

The largest and best understood deposit in the Company's portfolio of properties is Sabodala due to its production status and size, so this deposit and controls on mineralization are well understood. Gold deposits on the adjacent OJVG properties are of similar style, and include primarily high grade shear vein systems and bulk tonnage, lower grade mineralization in carbonate altered ultramafic rocks along shear zones.

Mining and Processing

The Sabodala Gold Mine has been in operation since 2009. 

Open pit mining at Sabodala is carried out by owner-operated conventional truck and shovel. Sabodala operates a multi-pit central mill operation.  In 2018, the focus in on mining three pits: Golouma West, Kerekounda, and Sabodala.

Sabodala operates a carbon-in-leach (CIL) processing plant, using a convention flowsheet.  The major equipment comprises two stage crushing with a primary jaw and a secondary cone crushing system. The Sabodala mill was the first industrial gold processing facility to come into operation in Senegal and to this day, it remains the largest gold operation in the country. The mill has undergone two expansions – one in late 2012 and the other completed in 2016.  Able to process up to 4.5 Mtpa, the plant is operates at nearly double its initial capacity when it commenced operation in 2009.

For further information on the Sabodala Gold Mine, please refer the Sabodala Technical Report filed August 30, 2017.

Pictures

Sabodala
Mine License

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Sabodala
Pit

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Sabodala
Process Plant

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