Sulphide Zone Broadens At Depth In West Mali
Roscan Gold Corporation (TSXV: ROS) has obtained further positive results from an additional 17 DD and RC holes totaling 2,956m at its Southern Mankouke Zone (MS1 and MS3) at the Kandiole Project in West Mali, West Africa.
These results continue to confirm that mineralization is open at depth in fresh rock at MS1 with a broader zone. In addition, drilling at MS3 continues to expand the footprint to a mineralisation envelope size that is now at 300m E-W, 200m N-S, and 10 to 40m width. More importantly, it appears that a consistent high-grade zone has been traced to a vertical depth of 120m, ended in fresh rock and remains open.
Mankouke Discovery Zone (MS3)
- 3.53 gpt gold over 17m from drill hole RCMAN21-55 from 121m
- 4.06 gpt gold over 5m from drill hole RCMAN21-51 from 67m and 2.79 gpt gold over 11m from 73m
- 4.43 gpt gold over 5m from drill hole RCMAN21-48 from 42m
Mankouke Discovery Zone (MS1)
- 3.31 gpt gold over 16m from drill hole DDMAN21-116 from 258.4m ; Including 11.97 gpt gold over 3m from 260.4m and 1.48 gpt gold over 12m from 284.4m
- 11.03 gpt gold over 3m from drill hole DDMAN21-114 from 126.5m and 3.21 gpt gold over 5m from 155.5m
- 3.43 gpt gold over 9m from drill hole DDMAN21-112 from 141.5m; Including 5.84 gpt gold over 4m from 141.5m
Notes: 1: True width yet to be determined, 2: Table 1 – Assay Highlights, 3: 0.5gpt used as cut-off with 4m internal dilution for drill holes, and 4: No top-cut.
Potential High-Grade Extension at Depth to the East
At MS3, the mineralisation is close to surface and commences in the saprolite. The gold envelope shows a folded shape with dimensions of 300 m E-W, 200 m N-S, and 10 to 40m width.
The mineralization is open to the West, North, and East, while toward the South, it could be seen as an extension of MS1 displaced by a fault. The East fold limp displays a good consistency with significant high-grade intercepts (DDMan20-59 with 20m @ 3gpt, RCMan21-22B with 17m @ 3.3 gpt and RCMan21-55 with 17m @ 3.53 gpt). There is also a felsic intrusive occurrence that can be traced to a depth of 200m vertical. This unit can also be mineralised as it evidenced at MS1 and has yet to be fully tested in MS3.
Main Mankouke South Zone (MS1) – Mineralization Continues to Open at Depth
At MS1, the last diamond drill holes continue to show good continuity at depth and laterally in the sulphide fresh rock. Drill Hole DDMAN21-116 with 16m @ 3.31 gpt, located 100m North from DDMAN21-104B (with 25m @ 2.02 gpt), shows the wide broadening of the sulphide at depth at consistent high grade, which remains open and has yet to be tested.
The mineralisation is strongly associated with the alteration mainly albite-carbonate-silicification, pyrite-arsenopyrite assemblage and often with the occurrences of quartz veins and veinlets network but also fractured rock.
The mineralisation envelope fits very well in the alteration halo wireframe. These diamond holes also show that the felsic intrusion played an important role during the mineralisation by hydrothermal gold mobilization or remobilization.
Gold is in the sedimentary package at the top and limited by the footwall, which is carbonaceous bedded mudstone, in discordance with the gold-bearing folded clastic-limestone sequence.
President and CEO, Nana Sangmuah, said the gold mineralisation is open at depth and laterally, following the felsic intrusive toward the North and the South which fortunately crosses the barren footwall, allowing the mineralisation to extend deeper.
“We continue to be very excited as the mineralisation of our Mankouke South flagship continues to expand, now with the doubling of the MS3 footprint, which remains open to the West-East and at depth,” Mr Sangmuah said.
“At MS1, we are also very pleased by the broadening of the sulphide zone at depth with consistent high-grade intercepts, pointing to the feeder zone opening up at depth.
“We expect a busy 2nd half of 2021 with a further 20,000m of assays to come from our Mankouke West, Mankouke South, Mankouke Centre, Kabaya KB4, Dabia South and Moussala MOU1 targets in addition to delivering our maiden resource estimate by year end.”
For further information please visit: https://roscan.ca/