Visible Gold Identified in Deeper Diamond Drilling
Seko Delivers Further Significant Results and Visible Gold
The drilling programs were designed to test for both strike and depth extensions to the significant shallow oxide gold mineralisation previously encountered at Seko, through AC drilling to a vertical depth of circa 80m and deeper DD drilling to a vertical depth of circa 180m.
Oklo's Dandoko Project and adjoining Moussala Project are located within the Kenieba Inlier of western Mali and lie within 30km to the east of B2Gold's 5.15Moz Fekola Project and 50km to the south-southeast of Randgold's 12.5Moz Loulo Mine.
- Assays results received from 89 of the 182 aircore (AC) infill and step-out holes completed at Seko testing for extensions to previously reported shallow, oxide gold mineralisation.
- Significant intersections include:
o 13m at 2.29g/t gold from 83m to end of hole
o 17m at 4.04g/t gold from 16m to end of hole
o 34m at 1.92g/t gold from 11m; including
o 22m at 2.05g/t gold from 13m
o 5m at 10.25g/t gold from 10m
o 6m at 2.58g/t gold from 44m
o 3m at 3.46g/t gold from 69m
o 44m at 0.69g/t gold from 12m; including
o 6m at 1.18g/t gold from 30m
- The follow-up AC drilling was completed at 50m centres on ~100m spaced sections over a combined strike length in excess of 2km.
- In addition to the higher grades reported, numerous holes intersected wide zones of anomalous gold anomalism (>0.1g/t) indicative of a potentially larger gold system at Seko.
- Assays results are pending from the 5 deeper diamond holes (DD) completed at Seko, which all intersected significant alteration zones in fresh rock over wide intervals variously characterised by silicification and ankerite, sulphide and quartz mineralisation.
- Visible gold identified in fresh rock whilst conducting logging and sampling of the diamond drill core.
- Results from the remaining 93 AC holes will be reported as they come to hand.
SEKO AC DRILLING PROGRAM
The recently completed AC drilling program at Seko (183 holes for 11,517m) comprised predominantly 100m spaced step-out and infill traverses along three of the Seko Trends where previous reconnaissance AC drilling intersected significant widths of shallow, oxide gold mineralisation from 5 of the anomalies tested (Figure 2, see link below).
This announcement summarises assay results received from the first 89 holes from Anomalies 1 and 3 (Figure 2).
Each drill traverse was completed in a 'heel-to-toe' manner and resulted in a nominal 50m drill spacing. All holes were angled at -55deg and achieved an average downhole depth of 86m (vertical depth ~70m) and a maximum downhole depth of 102m (vertical depth ~83m). The holes generally encountered saprolitic clays with the majority terminating within weathered bedrock. Only a small number of holes ended in fresh rock (greywacke with a strong carbonate component), indicating a deep and extensive weathering profile at Seko.
Assay results received from the AC holes successfully confirmed the presence of further significant zones of oxide gold mineralisation over strike lengths in excess of 500m at both Anomaly 1 and 3.
All drill hole locations are summarised in Table 2 and presented in Figure 2 (refer to link below for Tables and Figures).
The new significant intersections are summarised in Table 1. A detailed summary of all assay results =0.1g/t gold are shown in Table 3 (see link below).
SEKO DIAMOND DRILLING PROGRAM
As previously announced (refer ASX Announcement 21st June 2017 "Diamond Drilling Successfully Confirms Seko at Depth") a first pass stratigraphic DD drilling program, comprising 6 holes for 961m, was recently completed testing four separate anomalies at Seko (Anomalies 1, 2, 3 and 5, Figure 2). The DD program was designed to provide valuable geological and structural information on the primary mineralisation below the previously reported significant AC drilling results to assist in the planning of deeper RC drill holes. All holes were angled at -55deg and achieved a maximum downhole depth of 221m (vertical depth ~180m).
All the holes intersected significant alteration zones in fresh rock over wide intervals variously characterised by silicification and ankerite, sulphide and quartz mineralisation with a broad carbonate zone intersected at Anomaly 2.
Significantly, following geological and structural logging, visible gold was identified in fresh rock from hole DDSEK17-003 (Anomaly 3) at a downhole depth of 161m (131m vertical) while being cut for analysis (Figure 3, see link below). This hole intersected greywacke with intense alteration from 142m to the end of hole, including zones of pervasive ankerite alteration and strong sulphide mineralisation.
The Company looks forward to receiving further assays from the remaining 93 AC and 5 DD holes which will be reported as they come to hand.
To view tables and figures, please visit:
About Oklo Resources Ltd
Oklo Resources Ltd (ASX:OKU) is an exploration company with gold, uranium and phosphate projects located in Mali, Africa. The Company's focus is its large landholding of eight gold projects covering 1,389km2 in some of Mali's most prospective gold belts. The Company has a corporate office located in Sydney, Australia and an expert technical team based in Bamako, Mali, led by Dr Madani Diallo who has previously been involved in discoveries totalling in excess of 30Moz gold.
Oklo Resources Ltd