Oklo Resources Limited (ASX: OKU) has announced further high-grade drilling results from its flagship Dandoko Project located in west Mali, Africa.
The company reported that first results were received from the expanded drilling program over the northern portion of SK1 at Seko.
The company reported that wide zone of high-grade gold mineralisation were confirmed in multiple holes with excellent down dip and along strike continuity.
Significant intersections include 55m at 7.65g/t gold from 54m including 7m at 38.31g/t gold from 79m including 2m at 98.75g/t gold from 80m, and 5m at 10.63g/t gold from 92m; 51m at 4.28g/t gold from 63m including 12m at 7.19g/t gold from 75m, 4m at 10.57g/t gold from 102m, with the hole ending in +7g/t gold mineralisation, 31m at 7.12g/t gold from 30m including 17m at 12.63g/t gold from 38m including 9m at 18.87g/t gold from 42m including 3m at 43.23g/t gold from 43m; 32m at 4.55g/t gold from 5m including 11m at 8.78g/t gold from 10m including 4m at 18.84g/t gold from 11m.
OKU said that gold mineralisation was hosted by gossanous (after sulphides), altered sediments in the oxide zone with individual grades of up to 140g/t gold (equivalent to ~4.5oz/t). Similar alteration and sulphide mineralisation were observed over wide intervals in two step-out diamond holes completed at depth with assay results pending.
The company said that the updates from the expanded program over the northern part of SK1 (25 holes for 2,414m) and deeper RC and DD resource drilling at SK2 and SK3 (18 holes for 3,365m) are expected over coming weeks.
OKU said that all new Seko results will be incorporated into the maiden Mineral Resource estimate scheduled for completion in Q2 2020. The company said that the reconnaissance AC drilling between Seko and the recently discovered Koko prospect to the immediate south is underway.
The Dandoko Project covers 134km2 within the Kenieba Inlier of West Mali in West Africa. It is located in close proximity to numerous world-class gold deposits including B2Gold’s 7.21Moz Fekola gold project 30km to the west and Randgold’s 12.5Moz Loulo Gold Mine 50km to the north-northwest.
The Company currently holds ~500km2 of highly prospective ground in this emerging world-class gold region. Extensive gold anomalies have previously been outlined by auger drilling along the 12km-long Dandoko gold corridor.
Significant prospects of the Dandoko project include Seko, Sory, Dabia, Gombaly, Diabarou, Disse, Selingouma North, Selingouma South, and Bembala.
The Seko prospect comprises of five mineralised gold trends (Seko Anomalies SK1, SK2, SK3, SK4, and SK5) with a combined strike length of ~7km, with significant gold potential.
Drilling at Seko
Oklo had completed an initial 10,000m drilling program comprising AC, RC, and DD drilling at Seko prospect in advance of a maiden Mineral Resource estimate scheduled for completion early in Q2 2020.
OKU said that all assay results have now been reported from the initial phase of shallow AC and RC resource definition drilling at Seko (57 holes for 5,045m), testing the gold mineralisation to depths averaging 85m and up to 184m.
Oklu had reported results of 47m at 10.95g/t gold from 48m from SK1 at Seko from this program. The company said that a deeper RC and DD drilling phase has just been completed (18 holes for 3,365m) with all assay results pending.
Expanded drilling program at Seko
OKU reported that it has now completed an expanded drilling program of ~3,000m over the northern portion of SK1 at Seko within the Dandoko Project.
Oklo said that its current field program is focusing on infill drilling and closing off areas of near surface mineralisation at Seko and surrounding areas in advance of a maiden Mineral Resource estimate.
The company said that assay results were received from the first 11 RC and two DD (1,390m) holes from the follow-up program. It may be noted that all holes were drilled at -55° towards the northwest on three 40m spaced drill sections to support resource estimation work.
High-grade drill results
OKU reported that the holes on all three sections were successful in confirming a wide zone of northeast-striking gold mineralisation, dipping 60° towards the southeast and hosted in weathered, brecciated and altered sediments.
The company reported that individual samples of up to 140g/t gold (equivalent to ~4.5oz/t gold) were recorded corresponding to gossanous zones after sulphides.
OKU reported that the new zone of mineralisation outlined in the north of SK1 currently extends over a 250m strike length and remains open along strike to the north and at depth.
Significant intersections include 55m at 7.65g/t gold from 54m in hole RCSK19-142 including 7m at 38.31g/t gold from 79m including 2m at 98.75g/t gold from 80m, 5m at 10.63g/t gold from 92m; and 51m at 4.28g/t gold from 63m in hole RCSK19-143 including 12m at 7.19g/t gold from 75m, and 4m at 10.57g/t gold from 102m, with the hole ending in +7g/t gold mineralisation.
Other important hits include 31m at 7.12g/t gold from 30m in hole RCSK19-144 including 17m at 12.63g/t gold from 38m including 9m at 18.87g/t gold from 42m including 3m at 43.23g/t gold from 43m; 29m at 2.46g/t gold from 51m in hole DDSK19-048 including 8m at 4.92g/t gold from 51m; and 32m at 4.55g/t gold from 5m in hole RCSK19-148 including 11m at 8.78g/t gold from 10m including 4m at 18.84g/t gold from 11m.
OKU said that assay results from a further 21 RC and four DD holes are pending from this zone. Of these, two DD holes were drilled at depth below holes RCSK19-142 and 143 (holes DDSK20-57 and DDSK20-60)
The company said that further assay results are expected in coming weeks from the deeper RC and DD resource definition drilling program at SK2 and SK3 (18 holes for 3,365m) and the expanded drilling program over the northern extension of SK1 (25 holes for 2,414m).
Oklo said that AC, RC, and diamond drilling will continue and follow up these and other ongoing results on the Dandoko project is scheduled to continue through January and February 2020.
Oklo’s Managing Director, Simon Taylor said: “These latest results from the north of SK1 have successfully confirmed the presence of a new zone of high-grade gold mineralisation of considerable width extending over 250m.
This emerging zone remains open both at depth and along strike to the north, and is shaping up as a potential game changer for Oklo. We eagerly await assay results from the remaining step-out and deeper holes at SK1 along with the reconnaissance holes to the south towards the Koko discovery.”