5 June 2024
BWA
Group PLC
(“BWA”, or
the “Company”) (AQSE: BWAP)
Reconnaissance
Drilling Heavy Mineral Separation and Analytical Results at Dehane
2 Heavy Mineral Sands Project, Cameroon
BWA Group
plc [AQSE: BWAP], which has mineral exploration licences in both
Cameroon and Canada and is quoted on London’s AQSE Growth
Market, provides further results from its recently completed
reconnaissance drilling programme at its Dehane 2 rutile sands
Licence, located in Central
Cameroon (“Dehane
2” or the
“Dehane
Project”),
initially reported on 27th
February 2024 (see following link).
https://www.aquis.eu/stock-exchange/announcements/4488530
Dehane 2
is located 166 km southwest of Yaoundé, and 70 km from the deep
seaport and industrial zone of Kribi (Figure 1).
The D2
licence covers an area of 54 km2
and
includes 14 km of strike length of the Nyong river system, an area
known to be prospective for Ilmenite, Rutile, Zircon and Kyanite
heavy mineral sand (HMS) mineralisation. Moreover, the licence
covers some 20 km of the mouth of the Nyong River as it empties
into the Gulf of Guinea and
adjacent sandy beach-setting coastline. The beach swash zone was
the target for the 19-hole reconnaissance auger drilling being
reported.
A version
of this announcement that includes maps and additional tables can
be viewed on the link below.
Highlights
The
highlights of heavy mineral separation studies and x-ray
fluorescence (XRF) analysis on 35 samples, and x-ray diffraction
(XRD) analyses on 11 samples taken from the auger drilling are
presented below:
-
HMS
mineralisation encountered from the surface down to the basement
occurring at depths around 5-7
m.
-
Total
Heavy Mineral (THM) raw sample grades up to
13.5% over
2 metres thickness.
-
Total
Heavy Mineral (THM) significant interval grades up to 8.3% over 3.5
metres thickness.
-
Valuable
Heavy Mineral (VHM) content (kyanite, rutile, ilmenite, garnet and
zircon) up to 9.4% over 2 metres thickness.
-
Low slimes
between 0.4 and 15.6%.
-
Raw sample
TiO2
grades
ranging between 0.1 and 12.1%, Al2O3
grades
vary between 0.2 and 7.7% and ZrO2
between
0.01 and 1.01%.
-
Results
outline a >1% coherent VHM exploration near surface target area
of approximately 12 km x 0.25 km aerial extent and average three
metres of thickness.
Jonathan Wearing, Chairman of BWA Group Plc,
commented:
“These
preliminary reconnaissance drilling results within the BWAR Dehane
2 licence are extremely encouraging and lend support to the BWA
Board belief of the occurrence of HMS mineralisation of potential
future economic interest. The percentage of THM and VHM encountered
is higher than anticipated and HLS results were better than
expected, as well as lower slimes given the sand environment.
Although at an early stage of development, the results demonstrate
that there are heavy mineral accumulations of the composition,
extent and thickness to be of potential future economic and
commercial interest.
BWA
are currently further evaluating the significance of these results
and designing follow-up exploration programmes including systematic
drilling for the purposes of input to mineral resource estimates,
and the commencement of ESG baseline
studies.
It is
intended to raise further funds to finance the work needed to
produce mineral resources estimates.”
Work
Completed
An initial
first pass reconnaissance drilling programme was carried out
between the 5th
and
20th
of
November 2023, consisting of 19
drillholes completed at a spacing of between 500 and 1000 metres
along strike and around 50 to 100 metres across the project width
where access permitted (Figure 2). Holes were drilled to an average
depth of around six metres using the Archway track rig and
approximately three metres using the Van Walt hand
auger.
Ninety-one
primary samples were collected and composited within holes by
similar lithologies. Thirty-five primary samples were selected and
submitted to Scientific Services Laboratory, Cape Town, South Africa, for heavy liquid
separation (HLS), x-ray fluorescence (XRF). 11 samples were
selected from the THM sub-samples for x-ray diffraction (XRD)
analysis. Drillhole locations are shown in Figure 2 and sample
details and results are presented in Tables 1, 2 and 3.
Evidence
of heavy minerals was observed at the surface and within all
drillholes, which provides encouraging evidence for the potential
economic accumulations of heavy mineral sands within the licence
(reported on 27th
February 2024). Within the drill core, medium and
coarse-grained rutile, ilmenite and kyanite were observed in
numerous horizons and appear to be continuous layers of sand within
the mouth of the Nyong River and to the south.
Significant
downhole intercepts for THM% are presented below in Table 1 and
Figure 3. The intercepts were calculated using a minimum thickness
of 1 metre, a trigger value of 0.5% THM, a minimum grade of 1% THM
and a maximum of 1 metre of dilution.
Table 2
shows the VHM% calculations from the XRD analyses with VHM (kyanite
rutile, ilmenite and garnets) ranging between 1.0 and 9.4% as shown
in Figure 4.
Table 3
shows the key drilling results. There are low slimes (0.4 and
15.6%) and promising THM grades, ranging between
0.5 and 13.5% THM. Furthermore, the TiO2
grades are
also encouraging with values ranging between 0.1 and 12.1%. The
Al2O3
grades
vary between 0.2 and 7.7% and ZrO2
grades
vary between 0.01 and 1.01%.
Eleven
samples were submitted for XRD analysis based on
favourable THM% and high TiO2
and
Al2O3
grades.
From the
11 samples, TRIZ (Total Rutile, Ilmenite and Zircon) values ranged
from 0.3 to 3.7%. THM, VHM and rutile grades and distributions are
presented in Figures 3, 4 and 5. The images show that there is a
slight increase in THM concentration in the south. Significant
intercepts for THM% and VHM are presented below in Tables 1 and 2
respectively. The results are being interpreted and further work
will be planned based on the updated understanding.
Table 1:
THM% analysis. Holes were vertical, mineralisation horizontal and
thicknesses are representative of the true thickness. The
intercepts were created using a minimum thickness of 1 metre, a
trigger value of 0.5% THM, a minimum grade of 1% THM and 1 metre of
dilution.
Hole
|
From
|
To
|
Interval
|
THM
%
|
Deslime
%
|
TiO2%
|
ZrO2%
|
Al2O3%
|
DH2_001
|
0.00
|
3.00
|
3.00
|
7.79
|
0.66
|
5.78
|
0.29
|
4.73
|
DH2_002
|
0.00
|
5.00
|
5.00
|
3.02
|
3.00
|
1.69
|
0.26
|
1.77
|
DH2_003
|
0.00
|
6.00
|
6.00
|
3.07
|
1.51
|
2.00
|
0.14
|
1.93
|
DH2_004
|
0.00
|
7.00
|
7.00
|
2.32
|
2.78
|
1.18
|
0.14
|
1.27
|
DH2_005
|
0.00
|
6.00
|
6.00
|
3.26
|
1.27
|
1.41
|
0.13
|
1.88
|
DH2_006
|
0.00
|
6.00
|
6.00
|
1.62
|
1.76
|
0.93
|
0.14
|
0.84
|
DH2_007
|
0.00
|
7.00
|
7.00
|
1.09
|
2.23
|
0.78
|
0.11
|
0.51
|
DH2_008
|
0.00
|
7.00
|
7.00
|
1.77
|
3.02
|
1.26
|
0.12
|
0.93
|
DH2_009
|
0.00
|
3.50
|
3.50
|
8.03
|
1.73
|
7.10
|
0.61
|
4.55
|
DH2_010
|
0.00
|
3.00
|
3.00
|
7.42
|
0.74
|
5.82
|
0.36
|
4.33
|
DH2_012
|
0.00
|
3.00
|
3.00
|
5.87
|
1.54
|
5.57
|
0.77
|
2.64
|
DH2_014
|
0.00
|
4.00
|
4.00
|
2.31
|
2.83
|
1.59
|
0.10
|
1.36
|
DH2_017
|
0.00
|
4.00
|
4.00
|
1.58
|
4.81
|
1.12
|
0.12
|
0.79
|
DH2_019
|
0.00
|
3.00
|
3.00
|
2.13
|
0.77
|
1.93
|
0.22
|
0.96
|
Table 2:
THM and VHM% analysis from select XRD samples.
|
Valuable
HM in Ground
|
Hole
ID
|
Sample
ID
|
From
|
To
|
Interval
|
THM
sand
|
Kyanite
|
Garnet
|
Ilmenite
|
Rutile
|
Zircon
|
TRIZ
|
VHM
|
DH2_001
|
N027201
|
0.00
|
3.00
|
3.00
|
7.8%
|
1.3%
|
0.9%
|
1.6%
|
0.3%
|
0.5%
|
2.3%
|
4.5%
|
DH2_002
|
N027203
|
2.00
|
4.00
|
2.00
|
2.2%
|
0.7%
|
0.4%
|
0.2%
|
0.0%
|
0.0%
|
0.3%
|
1.4%
|
DH2_003
|
N027207
|
2.00
|
3.00
|
1.00
|
8.8%
|
3.7%
|
0.7%
|
1.0%
|
0.1%
|
0.2%
|
1.4%
|
5.7%
|
DH2_004
|
N027210
|
2.00
|
6.00
|
4.00
|
1.8%
|
0.6%
|
0.1%
|
0.2%
|
0.1%
|
0.0%
|
0.3%
|
1.0%
|
DH2_005
|
N027212
|
0.00
|
3.00
|
3.00
|
4.5%
|
1.5%
|
0.1%
|
0.4%
|
0.1%
|
0.0%
|
0.5%
|
2.2%
|
DH2_008
|
N027220
|
0.00
|
3.00
|
3.00
|
2.5%
|
0.6%
|
0.1%
|
0.4%
|
0.1%
|
0.1%
|
0.6%
|
1.3%
|
DH2_009
|
N027223
|
0.00
|
2.00
|
2.00
|
13.5%
|
4.7%
|
1.1%
|
2.7%
|
0.6%
|
0.3%
|
3.7%
|
9.4%
|
DH2_010
|
N027225
|
0.00
|
3.00
|
3.00
|
7.4%
|
2.7%
|
0.5%
|
1.4%
|
0.4%
|
0.2%
|
2.0%
|
5.2%
|
DH2_012
|
N027227
|
0.00
|
3.00
|
3.00
|
5.9%
|
1.9%
|
0.3%
|
1.5%
|
0.2%
|
0.2%
|
1.9%
|
4.1%
|
DH2_014
|
N027228
|
0.00
|
2.00
|
2.00
|
4.1%
|
1.3%
|
0.2%
|
0.5%
|
0.1%
|
0.0%
|
0.7%
|
2.2%
|
DH2_019
|
N027237
|
0.00
|
3.00
|
3.00
|
2.1%
|
0.5%
|
0.1%
|
0.5%
|
0.1%
|
0.1%
|
0.6%
|
1.2%
|
Geology
and Geological Interpretation
The Dehane
licences are located in the Western Cameroon Domain, which extends
along the border between Nigeria
and Cameroon. This domain consists
of a series of medium-grade to high-grade schists and gneisses of
volcanic and volcano-sedimentary origin, intruded by later-stage
granitoid complexes, the basement rocks are the source of heavy
minerals.
The Nyong
River is the main river which runs through the licence areas
(Figures 1 and 2).
The BWAR
licences (D1, D2 and D3) allow access to approximately 60 km of the
prospective Nyong River floodplain system, deltas, estuarine
coastline and associated tributaries.
The
licences encompass a large active river system and an even larger
paleo-floodplain area, and marine coastline observed in satellite
imagery (Figure 2), although this has yet to be fully
ground-truthed through fieldwork. This paleo-floodplain is likely
to be a significant target for exploration and covers the length of
the river with an initial expected width of over 2 km in the north
and increasing in the south. Other
rivers of various importance are found there: Owoumbé, Nkoudou,
Bidinga, Mbebe, Mboke, and Ongué.
The Dehane
area has been known for some historic small-scale artisanal
historical rutile mining. However,
the extent of its exploitation has not translated to concentrated
modern exploration.
Dehane 2
comprises approximately 14 kms of the Nyong river system, an area
known to be prospective for Ilmenite, Rutile, Zircon and Kyanite
heavy mineral sand mineralisation. Moreover, the licence covers
some 20 km of the mouth of the Nyong River as it empties into the
Gulf of Guinea. A river mouth can
lead to a change in flow conditions that can cause the fluvial
system to deposit any supplementary sediment including heavy
mineral sand (HMS) it is carrying, where potentially economic
accumulations of HMS are found within the lowest energy zone on the
beach, the swash zone (Figure 2).
Mineralisation
Rutile and
ilmenite were visible during the drilling. Generally, the rutile
grains are reddish and medium to coarse-grained compared to the
black finer-grained ilmenite (reported on 27th
February 2024). The sands are generally thicker towards the
southern part of the Dehane 2 licence, although the XRF and XRD
results show that the HMS mineralisation is continuous and of
similar grades, as shown in Figures 3, 4 and 5. Rutile and ilmenite
mineralisation was observed in all sand horizons with larger grains
of heavy minerals located within the coarser sands. Micas are
generally observed in the drillhole near the boundary to the gneiss
bedrock.
The
typical drillhole lithologies consist of a thin layer of organic
soil-sandy material measuring less than 10 cm from the surface.
This layer overlies a varying thickness of coarse to medium-grained
sands, where the HMS is predominant. The gneiss bedrock's depth
varies between six to seven metres.
Competent
Person’s Statement
The
information in this report which relates to the BWA Dehane 2
Project is based upon and fairly represents information and data
collected, supervised and compiled by Mr Lewis Harvey, MSc., Principal Consulting
Geologist for Addison Mining Services, who is a Member of the
Australian Institute of Geoscientists.
The
results were reviewed by Mr J.N.
Hogg, MSc. MAIG, Principal Geologist for Addison Mining
Services (AMS) and Non-executive Director of BWAR.
Mr
Harvey and Mr Hogg have sufficient experience relevant to the style
of mineralisation, the type of deposit under consideration and the
activity undertaken to qualify as a Competent Person as defined in
the JORC Code 2012 edition of the Australasian Code for Reporting
of Exploration Results, Mineral Resources and Ore
Reserves.
Mr
Harvey and Mr Hogg have reviewed and verified the technical
information that forms the basis of and has been used in the
preparation of this announcement, including all sampling and
analytical data, and analytical techniques where applicable. Mr
Harvey and Mr Hogg consent to the inclusion in this announcement of
the matters based on the information, in the form and context in
which it appears.
Forward-Looking
Statement
This
announcement contains forward-looking statements which involve a
number of risks and uncertainties. These forward-looking statements
are expressed in good faith and believed to have a reasonable
basis. These statements reflect current expectations, intentions or
strategies regarding the future and assumptions based on currently
available information. Should one or more of the risks or
uncertainties materialise, or should underlying assumptions prove
incorrect, actual results may vary from the expectations,
intentions and strategies described in this announcement. No
obligation is assumed to update forward-looking statements if these
beliefs, opinions and estimates should change or to reflect other
future developments.
For
further information on the Company, please visit
www.bwagroupplc.com/index.html or:
BWA
Group PLC
James
Butterfield
Managing
Director
|
+44 (0)
7770 225 253
enquiries@bwagroupplc.com
|
Allenby
Capital Limited
Corporate
Adviser
|
+44 (0)20
3328 5656
Nick
Harris/Lauren Wright
|