Roscan Gold Intersects 3.43 gpt Gold over 23m in Mankouke Central and 1.55 gpt Gold over 31 Meters in Mankouke South Gold Mineralization Continuity Confirmed Between MS1 and MS3
Roscan Gold Intersects 3.43 gpt Gold over
23m in Mankouke Central and 1.55 gpt Gold
over 31 Meters in Mankouke South Gold
Mineralization Continuity Confirmed Between
MS1 and MS3
Toronto, Ontario--(Newsfile Corp. - January 10, 2023) -
Roscan Gold Corporation
(TSXV: ROS)
(FSE: 2OJ) (OTCQB: RCGCF)
("Roscan" or the "Company")
is pleased to announce positive
drilling results (Figures 1 and 4) from an additional program consisting of 41 Reverse Circulation ("RC"),
14 Air Core (AC) and 2 Diamond Drilling ("DD") holes totaling 6,153 meters (m) at our Southern
Mankouke Zone.
The results confirm additional mineralization and the continuity of mineralization between the main
mineral resources of MS1 and its satellite at MS3. In addition, significant mineralization near the surface
and in the fresh rock at depth, allows for a southern pit shell extension with the capturing of these
potential additional ounces.
Drilling Highlights:
Mankouke South
1.1
gpt gold over
29m
from drill hole
RCMan22-0094
from 8m
including
5.15
gpt gold over 1m from 32 m
and
1.55
gpt gold over 31m from 103m
including
5.36
gpt over 4m from 107m
1.07
gpt gold over
29m
from drill hole
DDMan22-140
from 0m
including
3.8
gpt gold over 3m from 0m
1.39
gpt gold over
16m
from drill hole
DDMan22-139
from 80m
and
1.64
gpt gold over 10m from 328.5m
1.27
gpt gold over
15m
from drill hole
RCMan22-0089
from 69m
I
ncluding
4.87 gpt
gold over 2m from 72m
1.23
gpt gold over
9m
from drill hole
RCMan22-0091
from 10m
and
1.94
gpt
gold over 4m from 115m
including
4.05 gpt
over 1m from 118m
1.42
gpt over
6m
from drill hole
RCMan22-0085
from 163m
Including
5.03 gpt
gold over 1m from 167m
1.02
gpt gold over
8m
from drill hole
RCMan22-0090
from 155m
1.13
gpt gold over
6m
from drill hole
RCMan22-0082
from 138m
including
4.41
gpt gold over 1m from 142m
and
1.82
gpt gold over 6m from 160m
including 4.08 gpt gold over 2m from 160m
Mankouke Central
3.43
gpt gold over
23m
from drill hole
RCMan22-0107
Including 5.19 gpt gold over 13m from 7m
1.76
gpt gold over
8m
from drill hole
RCMan22-0108
from 33m
1.4
gpt gold over
10m
from drill hole
ACMan21-1253
from 0m
1.46
gpt gold over
9m
from drill hole
RCMan22-0104
from 0m
1.11
gpt gold over
10m
from drill hole
ACMan21-1255
from 22m
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.
Nana Sangmuah, President and CEO, stated,
"These additional infill drill results and step out drill
results point to further growth in our resource footprint declared in our maiden Mineral Resource
Estimate (MRE). We are encouraged by the continuity and high-grade mineralization
at our flagship
Mankouke South target, which should be the core for establishing an economic stand-alone project at
Kandiole. The
~ 30Mt of the resource estimation established so far at
Kandiole, indicates that this
project is on track to be a potential low strip high-margin oxide operation with potential for significant
sulphide feed at depth, which should bolster project economics".
Mankouke South (MS1-MS3)
The last drilling campaign at Mankouke South confirmed a strike length of gold mineralization of 1.1 km,
with 150m in
the thickest portion, and with 360m vertical depth. The gold mineralized body of Mankouke
South represents 66% of the total resource estimates of the Kandiole project with an average gold grade
of 1.6g/t at 0.5 g/t cut-off
(June 8, 2022, Press Release)
within a pit of 315m for the deepest part and
with an average strip ratio of 2.7:1.
These gold intercepts add to the upside potential of current mineral resources within applied $1,500
USD pit shell design
(June 8, 2022, Press Release),
as well as in the MS1-MS3 connection in the
Southern part. The next drilling program goal will be the development of these gold extensions to include
them into the next resource estimation update.
The gold results, along with the felsic intrusive occurrence carrying the mineralization, support the thesis
of continuity of the model at depth, bringing together MS1 and MS3 into one mineralized body, which
remains open. The gold is also associated with a brittle structure, yielding a strongly altered brecciation
visible, for example in the DDMan22-139.
The North-West fence exploration indicates a possible extension of gold mineralization in the NW
direction at MS3.
The structural and airborne geophysics interpretations, in addition to the
extrapolation of the Siribaya
mineralized parallel zones (Zone A and B) in the southern permit, suggest a possible gold mineralization
duplication in the unexplored zone at East of MS1. Several reconnaissance holes are planned.
Mankouke Central
The Mankouke Center gold mineralization, located 4km North from Mankouke South, occurs as the thick
gold enrichment at the surface (35m width) and a possible continuity of the mineralization root of this to
the East.
At Mankouke Central the gold mineralization strike length reached 420m. The root is pinching around 90
m vertical depth. The mineralization could pinch, as in Mankouke South, in the base of the clastic
sediment package, and resumes at depth, around the felsic intrusion, where the fractured to the
brecciated zone is mineralized.
Figure 1: Plan View of the Mankouke South Drilling (MS1, MS2 and MS3)
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4821/150739_d6d19c0b74809a0e_001full.jpg
Figure 2: Cross Section Depicting Depth Extension with RCMan22-0094 at MS1 Section
1375600
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4821/150739_d6d19c0b74809a0e_002full.jpg
Figure 3: NW-SE Cross Section, link between MS1and MS3
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4821/150739_d6d19c0b74809a0e_003full.jpg
Figure 4: DDMan22-139 photo gold intercepts
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4821/150739_d6d19c0b74809a0e_004full.jpg
Figure 5: Plan view of Mankouke Center drilling
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4821/150739_d6d19c0b74809a0e_005full.jpg
Figure 6: Mankouke Center cross section 1380600N
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4821/150739_d6d19c0b74809a0e_006full.jpg
Geology
The pull-apart basin disseminated gold mineralization type, repeated from Siribaya/Mankouke
South/Mankouke Central/Kabaya and further the Oklo's deposits in the continuous structural corridor,
well-marked on the airborne geophysics magnetic and electromagnetic surveys, demonstrate a major
regional structure occurrence over more than 40 km, open toward the South and the North, underneath
the upper Proterozoic sandstone. The gold-bearing structure size at the surface suggests a deep
sheared zone favoring the acid intrusions comings accompanied by the different hydrothermal phases
carrying alteration and gold. Some additional deep holes are needed to evaluate the high-grade gold
potential along this major structural corridor.
The Mankouke South disseminated gold mineralization is located within the brittle zone above a footwall
unit of finely banded and alternating graphitic shale and limestone referred to as the carbonaceous
bedded mudstone. The gold mineralization is associated with faults zones, quartz veins, and breccias,
as well as a strong alteration, mainly albite, silicification, ankerite, and chlorite, with sulfite occurrences
(pyrite, arsenopyrite). In MS1, as well as MS3, the felsic intrusion seems to play a major role in gold
mineralization.
The gold mineralization at Mankouke Center is also disseminated in the clastic sediment unit strongly
saprolitized, mainly associated with debris flow lithology in the vicinity of a felsic intrusion.
Drilling and Analytical Protocol
Roscan uses Geodrill Reverse Circulation (RC) to drill until maximum 170m to reach the target and
Foraco to drill diamond hole, using PQ size rods in the saprolite and HQ size in the fresh rock.
The DD and RC samples have been sent for preparation to the ALS Laboratories in Bamako, Mali and
assayed at their analytical facilities to Ouagadougou for 1 kg Bottle Roll for DD and 2kg Bottle Roll for
RC with atomic absorption finish including tail analysis by 50g Fire Assays for results more than
0.05ppm. AC samples were prepared by Bureau Veritas Bamako and sent to Bottle analysis at their
Abidjan Laboratory. Roscan applied industry-standard QA/QC procedures to the program using
reference materials, blanks, standards, and duplicates.
Mankouke South
Hole ID
From (m)
To (m)
Interval (m)
gpt Au
Comment
ACMan21-1187
0.0
2.0
2.0
0.54
Laterite
6.0
10.0
4.0
1.47
Laterite
ACMan21-1188
56.0
58.0
2.0
0.59
Fresh Rock
ACMan21-1234
10.0
12.0
2.0
0.99
Overburden
ACMan21-1238
14.0
16.0
2.0
1.31
Overburden
ACMan21-1252
10.0
12.0
2.0
2.24
Laterite
ACMan21-1253
0.0
10.0
10.0
1.40
Laterite
ACMan21-1254
0.0
10.0
10.0
0.63
Laterite
ACMan21-1255
0.0
6.0
6.0
0.87
Laterite
14.0
16.0
2.0
0.52
Saprolite
22.0
32.0
10.0
1.11
Saprolite
ACMan21-1256
0.0
12.0
12.0
0.77
Laterite - Saprolite
ACMan21-1257
0.0
8.0
8.0
0.88
Laterite - Saprolite
DDMan22-139
72.0
74.0
2.0
0.95
Saprolite
80.0
96.0
16.0
1.39
Saprolite
99.0
100.0
1.0
0.64
Saprolite
114.0
115.0
1.0
2.07
Saprolite
127.0
128.0
1.0
1.96
Saprolite
136.0
137.0
1.0
0.55
Fresh Rock
139.0
141.0
2.0
0.90
Fresh Rock
147.5
151.5
4.0
1.62
Fresh Rock
including
147.5
148.5
1.0
4.76
Fresh Rock
175.5
177.5
2.0
3.25
Fresh Rock
249.5
250.5
1.0
1.43
Fresh Rock
259.5
260.5
1.0
0.65
Fresh Rock
264.5
266.5
2.0
0.69
Fresh Rock
328.5
338.5
10.0
1.64
Fresh Rock
including
334.5
335.5
1.0
3.98
Fresh Rock
DDMan22-140
0.0
29.0
29.0
1.07
Laterite-Saprolite
including
0.0
3.0
3.0
3.80
Laterite-Saprolite
39.0
40.0
1.0
1.39
Saprolite
93.0
95.0
2.0
2.99
Saprock
105.0
106.0
1.0
0.62
Saprock
110.0
112.0
2.0
0.80
Saprock
RCMan21-0071
122.0
129.0
7.0
0.54
Saprolite - Saprock-
Fresh Rock
RCMan21-0072
58.0
60.0
2.0
0.48
Saprolite
74.0
75.0
1.0
0.80
Saprolite
90.0
92.0
2.0
1.25
Saprolite
105.0
108.0
3.0
0.59
Saprolite
RCMan21-0073
59.0
65.0
6.0
2.49
Saprolite
including
60.0
61.0
1.0
9.08
Saprolite
135.0
136.0
1.0
0.72
Fresh Rock
138.0
139.0
1.0
2.19
Fresh Rock
RCMan21-0075
34.0
35.0
1.0
0.54
Saprolite
RCMan21-0076
11.0
12.0
1.0
1.04
Laterite
RCMan21-0077
30.0
31.0
1.0
0.72
Saprolite
100.0
101.0
1.0
0.85
Fresh Rock
103.0
104.0
1.0
0.54
Fresh Rock
110.0
113.0
3.0
0.99
Fresh Rock
153.0
163.0
10.0
0.68
Fresh Rock
RCMan22-0078
33.0
41.0
8.0
0.75
Saprolite
46.0
47.0
1.0
0.98
Saprolite
Table 1: Drillhole Highlights at Mankouke South
Mankouke South
Hole ID
From (m)
To (m)
Interval (m)
gpt Au
Comment
RCMan22-0079
34.0
39.0
5.0
1.81
Saprolite
including
34.0
35.0
1.0
4.79
Saprolite
RCMan22-0080
49.0
52.0
3.0
0.87
Saprolite
RCMan22-0081
52.0
53.0
1.0
0.56
Saprolite
141.0
142.0
1.0
8.33
Fresh Rock
146.0
147.0
1.0
0.53
Fresh Rock
RCMan22-0082
138.0
144.0
6.0
1.13
Fresh Rock
including
142.0
143.0
1.0
4.41
Fresh Rock
160.0
166.0
6.0
1.82
Fresh Rock
including
160.0
162.0
2.0
4.08
Fresh Rock
RCMan22-0084
135.0
136.0
1.0
1.36
Saprolite
RCMan22-0085
154.0
157.0
3.0
1.83
Fresh Rock
including
154.0
155.0
1.0
3.68
Fresh Rock
163.0
169.0
6.0
1.42
Fresh Rock
including
167.0
168.0
1.0
5.03
Fresh Rock
RCMan22-0087
109.0
110.0
1.0
1.37
Fresh Rock
133.0
136.0
3.0
1.19
Fresh Rock
RCMan22-0088B
72.0
77.0
5.0
0.51
Saprolite
89.0
97.0
8.0
0.58
Saprolite-Fresh
Rock
102.0
104.0
2.0
0.75
Fresh Rock
RCMan22-0089
11.0
12.0
1.0
0.51
Laterite
15.0
17.0
2.0
1.43
Saprolite
29.0
30.0
1.0
0.60
Saprolite
47.0
48.0
1.0
1.36
Saprolite
53.0
65.0
12.0
0.66
Saprolite
69.0
84.0
15.0
1.27
Saprock -
Saprolite
including
72.0
74.0
2.0
4.87
Saprock
RCMan22-0090
8.0
9.0
1.0
0.56
Laterite
62.0
64.0
2.0
1.51
Saprock
155.0
163.0
8.0
1.02
Fresh Rock
RCMan22-0091
10.0
19.0
9.0
1.23
Laterite -
Saprolite
43.0
44.0
1.0
1.06
Saprolite