Roscan Gold Discovers New High-Grade Zone at Mankouke West Intersects 3.44 gpt over 31m, including 9.23 gpt over 3m
Roscan Gold Discovers New High-Grade Zone
at Mankouke West Intersects 3.44 gpt over
31m, including 9.23 gpt over 3m
Toronto, Ontario--(Newsfile Corp. - September 11, 2023) -
Roscan Gold Corporation
(TSXV: ROS)
(FSE: 2OJ) (OTCQB: RCGCF)
("Roscan" or the "Company")
is pleased to announce that it has
identified a new high-grade zone of gold mineralization at Mankouke West (Figures 3, 4 and 5) as a
result of its systematic regional exploration activities.
Discovery holes include RCMAW23-0009 with
3.44 gpt over 31m, including 9.23 gpt over 3m, 8.46 gpt over 3m, 3.75 gpt over 7m, RCMAW23-
0001 with 1.72 gpt over 28m, including 5.28 gpt over 6m and RCMAW23-0017 with 1.14 gpt over
50m including 4.08 gpt over 2m (Table 1).
The new discovery is located 2km NW from Mankouke South, close to the area which holds over two
thirds of Roscan's maiden resource. This new zone has been traced so far over an area with a strike
length of 450m, 50m wide, and 125m vertical depth, and it is open toward NE and SW and at depth. This
gold occurrence lies in a large footprint of about 2km long and 500m wide outlined by saprolite
geochemistry with arsenic and antimony pathfinders providing expectation for substantial extensions
(Figure 6).
This discovery demonstrates the additional gold potential along the Siribaya-Mankouke-Kabaya-Seko
regional structural corridor, which stretches over 20Km through Roscan's land package. Further drill
holes are planned to develop this new gold target, with extensive RC holes, followed by deeper Diamond
drill holes.
Nana Sangmuah, President and CEO, stated,
"This high-grade discovery remains open on strike for
about 2km and at depth and highlights the excellent prospectivity of our tenement package. This
points to further resource growth potential outside the limits of known resources. The proximity of this
new zone to the main Mankouke South resource area could enhance ore feed to a potential central
processing facility. Since December 2022 we have completed about 10,000m RC and 5,600 meters
of auger drilling to expand the footprint of current resources and results should be available in the
coming weeks"
.
RC Holes - Drill Highlights 2023
:
•
3.44 gpt
gold over
31m
from drill hole RCMAW23-0009 from 50m
Including
9.23 gpt
gold over
3m
from 50m
Including
8.46 gpt
gold over
3m
from 62m
Including
3.75 gpt
gold over
7m
from 72m
•
1.72 gpt
gold over
28m
from drill hole RCMAW23-0001 from 88m
Including
5.28 gpt
gold over
6m
from 111m
•
1.14 gpt
gold over
50m
from drill hole RCMAW23-0017 from 81m
Including
5.27 gpt
gold over
2m
from 97m
•
1.49 gpt
gold over
15m
from drill hole RCMAW23-0011b from 85m
Including
4.08 gpt
gold over
2m
from 102m
Notes: 1: True width yet to be determined, 2: Table 1 - Assay Highlights, 3: 0.5gpt used as cut-off with
2m internal dilution for drill holes, and 4: No top-cut.
Figure 1: Mankouke West location in Roscan land package.
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Figure 2: Mankouke West, Roscan Airborne Geophysics, Saprolite Geochemistry,
and gold
envelope of the new discovery
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Figure 3: Mankouke West, drill plan and mineralized envelope
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Figure 4: Mankouke West section 1377750 N
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Figure 5: Mankouke West section 1377800 N
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Exploration
The new Mankouke West mineralization is located along an NNE-SSW portion (Figure 2) of the NE-SW
regional structural corridor as shown in Roscan Airborne Geophysics survey. This corridor extends from
Siribaya (IAMGOLD/MANAGEM) to Seko (B2GOLD) passing through Roscan's land package
(Mankouke South, Kandiole, Kabaya and Moussala targets) (Figure 1).
This discovery follows a saprolite geochemistry that initially provided low gold results but strong arsenic
and antimony signatures, defining an anomaly over 2km long and 500m wide tested by several scissor
Air Core fence lines (80m holes length), which returned a significant 2.12g/t over 12m intercept. The RC
holes reported in this press release confirmed the gold occurrence and allowed us to interpret its
geometry.
The mineralization occurs mainly in the saprolite horizon. The host rock is clastic sediments rich in quartz
veins fragments and iron oxide from sulfides.
The gold mineralization at both
Mankouke South and Mankouke West is located on the edge or in the
vicinity of an intrusive pluton which is probably cutting
the main mineralized body (MS1) with its NW
extension contouring it (MS3) as shown in the Electromagnetic Airborne geophysics interpretation
(Figure 2). This acid intrusive likely played a role in the hydrothermal activities, carrying gold in the more
porous or brittle host rock.
Figure 6: Plan View of Mankouke West
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Drilling and Analytical Protocol
Roscan uses Geodrill Reverse Circulation (RC) to drill until maximum 170m to reach the target. In 2021,
(Air Core holes ACMAW22-1158-1162), the samples were sent for preparation to Bureau Veritas'
Bamako laboratory and 1 kg Bottle Roll with atomic absorption finish analysed in BV lab, Abidjan. Since
January 2022, the samples are sent to the ALS Laboratories in Bamako, Mali and assayed at their
analytical facilities in Ouagadougou for 2 kg Bottle Roll with atomic absorption finish including tail
analysis by fire assays for results more than 0.05ppm. Roscan applied industry-standard QA/QC
procedures to the program using reference materials, blanks, standards, and duplicates.
Table 1: Drillhole Dataset at Mankouke West
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