NGULA 1 TARGET
TEMBO GOLD PROJECT
An extensive area of east-west trending artisanal mining activity, including some hard rock mining through deep shafts and adjacent exploitation of colluvial material
OVERVIEW
Ngula 1 is a broad zone of subvertical north-dipping subparallel shears (as many as eight intersected) across a width of approximately 250m and extending 600m in an east-west direction and open at depth and both ends. The shears host zones of biotite alteration, quartz veining and sulphide mineralization dominated by pyrrhotite and pyrite.
To date, 64 diamond drill (DD) holes totalling 13,765m and 41 reverse circulation (RC) drill holes totaling 7,623m have been completed at the target. Multiple artisanal shafts extending down to bedrock are oriented along the shears beneath the transported alluvial and colluvial cover.
The best Ngula 1 results to date include:
TDD0054: 8.17g/t Au over 11.05m from 116.96m;
TDD0041: 22.18g/t Au over 15.00m from 299.00m;
TDD0004: 3.13g/t Au over 25.89m from 41.00m including 4.46g.t Au over 2.60m and 9.38g/t Au over 6.30m.
The recent 2022-2023 drilling program, in addition to providing important structural data, also showed definitively that there are mineralized oblique cross-cutting shear zones that control the geometry, grade and morphology of mineralized shoots.
TECHNICAL INFORMATION
NGULA 1 TARGET DRILLING HIGHLIGHTS
- 2012-2014:
- TDD0004 – 9.38g/t Au over 6.30m from 60.00m;
- TDD0005 – 15.59g/t Au over 2.68m from 155.32;
- TDD0041 – 22.81g/t Au over 15.00m from 299.00m;
- TDD0054 – 11.85g/t Au over 8.02m from 117.93m;
- TDD0111 – 21.47g/t Au over 2.45m from 53.35m.
2022
-
- TDD0153 – 3.55g/t Au over 3.11m from 44.25m;
- TDD0156 – 1.51g/t Au over 10.18m from 143.10m including 2.33g/t Au over 3.45m from 146.54m, and 3.47g/t Au over 0.75m from 157.76m;
- TDD0157 – 4.95g/t Au over 1.67m from 120.12m;
- TDD0158 – 17.60g/t Au over 1.48m from 31.12m;
- TDD0159 – 1.24g/t Au over 3.08m from 117.00m.
- The latest drill hole results include:
- TDD0159 – 1.24g/t Au over 3.08m from 117.00m;
- TDD0160 – 5.22g/t Au over 1.93m from 107.18m including 10.07g/t Au over 0.89m, and 2.73g/t Au over 1.54m from 116.38m;
- TDD0161 – 1.64g/t Au over 3.07m from 54.43m;
- TDD0169 – 2.22g/t Au over 0.50m from 102.76m, and 0.82g/t over 2.78m from 159.22m, and 1.55g/t Au over 1.32m from 173.05m;
- TDD0172 – 4.14g/t Au over 3.85m from 118.49m including 7.03g/t Au over 2.08m;
- TDD0174 – 19.90g/t Au over 0.45m from 39.55m;
- TDD0176 – 1.68g/t Au over 5.28m from 72.45mm.
| NGULA 1 | >0.50g/t | >2.00g/t | ||||||
| TDD0159 | 110.63 | 111.51 | 0.88 | 1.06 | 0.88 | 1.06 | ||
| 113.39 | 113.85 | 0.46 | 1.24 | 0.46 | 1.24 | |||
| 117.00 | 117.41 | 0.41 | 0.73 | 3.08 | 1.24 | |||
| 117.41 | 118.11 | 0.70 | 0.82 | |||||
| 118.11 | 118.41 | 0.30 | 2.47 | 0.89 | 2.38 | |||
| 118.41 | 119.00 | 0.59 | 2.34 | |||||
| 119.00 | 119.62 | 0.62 | 0.27 | |||||
| 119.62 | 120.08 | 0.46 | 1.43 | |||||
| TDD0160 | 107.18 | 107.77 | 0.59 | 1.18 | 1.93 | 5.22 | ||
| 107.77 | 108.23 | 0.46 | 6.84 | 0.89 | 10.07 | |||
| 108.23 | 108.66 | 0.43 | 13.52 | |||||
| 108.66 | 109.11 | 0.45 | 0.95 | |||||
| 116.39 | 116.87 | 0.48 | 4.22 | 1.54 | 2.73 | 1.06 | 3.13 | |
| 116.87 | 117.45 | 0.58 | 2.23 | |||||
| 117.45 | 117.93 | 0.48 | 1.84 | |||||
| 199.55 | 200.00 | 0.45 | 2.16 | 1.07 | 1.36 | 0.45 | 2.16 | |
| 200.00 | 200.62 | 0.62 | 0.78 | |||||
| 234.58 | 235.16 | 0.58 | 0.65 | 0.58 | 0.65 | |||
| TDD0161 | 54.43 | 55.43 | 1.00 | 2.03 | 3.07 | 1.64 | 1.00 | 2.03 |
| 55.43 | 56.00 | 0.57 | 1.94 | |||||
| 56.00 | 56.56 | 0.56 | 0.59 | |||||
| 56.56 | 56.91 | 0.35 | 0.94 | |||||
| 56.91 | 57.50 | 0.59 | 2.12 | 0.59 | 2.12 | |||
| 61.88 | 62.46 | 0.58 | 0.59 | 0.58 | 0.59 | |||
| 68.86 | 69.20 | 0.34 | 0.67 | 0.34 | 0.67 | |||
| 69.68 | 70.23 | 0.55 | 0.66 | 0.55 | 0.66 | |||
| TDD0168 | 236.95 | 237.85 | 0.90 | 0.58 | 0.90 | 0.58 | ||
| 239.43 | 239.73 | 0.30 | 1.93 | 2.57 | 0.68 | |||
| 239.73 | 240.60 | 0.87 | 0.39 | |||||
| 240.60 | 241.32 | 0.72 | 0.40 | |||||
| 241.32 | 242.00 | 0.68 | 0.80 | |||||
| 252.56 | 253.00 | 0.44 | 1.14 | 0.44 | 1.14 | |||
| TDD0169 | 102.76 | 103.26 | 0.50 | 2.22 | 0.50 | 2.22 | ||
| 159.22 | 159.83 | 0.61 | 1.64 | 2.78 | 0.82 | |||
| 159.83 | 160.53 | 0.70 | 0.89 | |||||
| 160.53 | 161.22 | 0.69 | 0.33 | |||||
| 161.22 | 162.00 | 0.78 | 0.56 | |||||
| 173.05 | 173.56 | 0.51 | 1.68 | 1.32 | 1.55 | |||
| 173.56 | 174.07 | 0.51 | 1.05 | |||||
| 174.07 | 174.37 | 0.30 | 2.18 | 0.30 | 2.18 | |||
| TDD0170 | 223.70 | 224.00 | 0.30 | 0.59 | 0.30 | 0.59 | ||
| 229.13 | 229.87 | 0.74 | 0.87 | 0.74 | 0.87 | |||
| 278.58 | 278.97 | 0.39 | 1.03 | 0.81 | 0.80 | |||
| 278.97 | 279.39 | 0.42 | 0.59 | |||||
| 281.50 | 281.80 | 0.30 | 0.58 | 0.30 | 0.58 | |||
| 283.25 | 283.55 | 0.30 | 1.47 | 0.30 | 1.47 | |||
| TDD0172 | 118.49 | 119.18 | 0.69 | 0.61 | 3.85 | 4.14 | ||
| 119.18 | 119.87 | 0.69 | 3.11 | 2.08 | 7.03 | |||
| 119.87 | 120.40 | 0.53 | 1.17 | |||||
| 120.40 | 121.26 | 0.86 | 13.78 | |||||
| 121.26 | 121.77 | 0.51 | 1.15 | |||||
| 121.77 | 122.34 | 0.57 | 0.58 | |||||
| TDD0173 | 32.05 | 32.69 | 0.64 | 0.98 | 0.64 | 0.98 | ||
| TDD0174 | 35.24 | 35.81 | 0.57 | 19.90 | 0.57 | 19.90 | ||
| 39.55 | 40.00 | 0.45 | 0.92 | 0.45 | 0.92 | |||
| TDD0175 | No significant results | |||||||
| TDD0176 | 69.00 | 70.00 | 1.00 | 0.72 | 1.00 | 0.72 | ||
| 72.45 | 73.45 | 1.00 | 1.47 | 5.28 | 1.68 | |||
| 73.45 | 74.35 | 0.90 | 0.51 | |||||
| 74.35 | 75.14 | 0.79 | 0.76 | |||||
| 75.14 | 75.49 | 0.35 | 1.85 | |||||
| 75.49 | 76.42 | 0.93 | 2.22 | |||||
| 76.42 | 77.17 | 0.75 | 2.27 | |||||
| 77.17 | 77.73 | 0.56 | 3.43 | |||||
LOCAL GEOLOGY
The geology comprises predominantly mafic meta-volcanic rocks, with thin intercalated meta-sedimentary units within the meta-volcanic pile. There is no surface expression of the geology other than ruddy ferruginous soils, the weathering products of the mafic meta-volcanic rocks and there is no outcrop to reveal host rocks, geological structure or mineralization.
Completed drilling shows that the main east west trends appear to comprise multiple semi-continuous shear zones that are interpreted to pinch and swell along strike and up and down dip and dip steeply (80-90°) to the north. These shear zones are possibly linked by steeply dipping cross-shears trending either northeast-southwest or northwest-southeast at varying dips, and which are considered important controls on pinching and swelling as well as tenor of gold mineralization.
Mineralization consists of sulphides concentrated in shear zones, with accompanying quartz veins and alteration of sheared anf fractured host rocks within and adjacent adjacent to these structures. Small quartz veinlets can also contain appreciable amounts of sulphide away from areas where observable shearing has occurred. The margins of basaltic pillow lavas commonly host abundant pyrrhotite, pyrite and minor chalcopyrite but these do not generally contain gold unless associated within or adjacent to shear zones.
Pyrrhotite is the dominant sulphide with lesser finely disseminated pyrite and chalcopyrite. Sulphide also occurs as coarse blebs, masses and bands associated with more siliceous and chloritised zones within the shears. Pyrrhotite associated with chalcopyrite can also be found concentrated along milky and smoky quartz vein margins, or as fine stringers or replacement blebs.
