The exploration potential of Farbantourou is emphasized by the following:
- Well defined drill targets
- Known drilled gold deposits with mineralization open down dip
- High priority geophysical targets coinciding and spatially related to gold mineralization within the Senegal Mali Fault zone.
- Extensive artisanal mine sites
- Known gold mineralization proven by diamond drilling on 7 different prospects
- Located on the Senegal-Mali Shear, a fundamental structure controlling gold mineralization. Deposits on Senegal-Mali Shear include:
- Loulo 11.5Moz resource ( Randgold )
- Sadiola 9.2Moz resource ( IAMGOLD )
- Yatela 3.5Moz resource( IAMGOLD )
- Within Western Mali Gold Belt
- Underlain by favourable rock formations - Birimien meta-sediments, volcanics and granitoids
Desert Gold’s Farabantourou permit occurs 50km south of Sadiola and is underlain by metasediments, metavolcanics and granites of the Kenieba inlier. The Senegal-Mali Fault Zone runs north - south through the eastern part of the permit. Drill results show gold mineralization to exist on both permits. Artisinal gold mining also occurs on a number of localities on the permit. Drilling by Desert Gold and previous holders of the permit intersected gold mineralization on 7 prospects on the permit. The Senegal Mali Fault zone cuts north - south through the eastern part of Farabantourou. Four gold prospects occur on the Senegal Mali fault zone. These are Barani, Barani East, Kaniegoulou and Kaniegoulou South. A further three prospects Linguekoto, Dambamba and Kousilli occurs to the west of the structure. Mineralization is hosted in north – south to north northeast – south southwest trending structures developed in carbonaceous siltstone, shale and clay. Weathering is locally down to 150m at Barani and Barani East showing potential for low cost open pit mining. At Keniegoulou large zones are intensely altered, oxidized and sheared with quartz veins. Here gold occurs on contacts between siltstone, carbonate and diorite dykes.
Exploration work undertaken by Desert Gold on Farabantourou comprises
- Interpretation of satellite imagery covering the area.
- 2223 soil samples were collected and assayed over the western part of the permit.
- First phase of RC drilling of the gold anomalous zone
- IP surveys over 5 grids completed.
Ten reverse circulation (RC) drillholes were drilled over one of the identified soil anomalies in the eastern part of the Kousilli area. A total of 978m in 10 drillholes were completed. Two of the drillholes, FARC004 and FARC005, intersected any significant mineralization:
An IP survey was completed over 5 grids covering the prospects with known gold mineralization. Soil anomalies and drill intersections were shown to coincide with structures and anomalies interpreted from the chargeability maps and several drill targets were identified.
Map showing the different prospects on Farabantourou, the Senegal Mali fault zone.
Drill section from the Barani East prospect showing the potential down dip of the deepest borehole
Plan showing chargeable bodies in red in the Senegal Mali Fault zone on Farabantourou. Known mineralization coincide with anomalies B and G
Hyundai Mali S.A. (Hyundai) investigated the permit for gold as part of the Sepola Project from 1998 until 2004. Some of the data from the 1998-2001 drilling programs is available in the public domain. Mineralization was discovered in seven areas; Barani, Barani East, Keniegoulou, Keniegoulou South, Dambamba, Kousilli and Linnguekoto.
Selected reported drill intersections by Hyundai are listed below:
|Prospect||Drillhole No||From (m)||To (m)||Intersection Width (m)||Grade (g/t)|