27 February 2024
BWA
Group PLC
(“BWA”,
or the “Company”)
Reconnaissance
Drilling 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 an update on its Dehane 2 rutile sands Licence,
located in Central Cameroon
(“Dehane
2” or the
“Dehane
Project”).
The Dehane
2 licence covers an area of 54 km2.
It 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 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 1, 2 and 3). The swash zone was the target for the
reconnaissance drilling.
Dehane 2
is located 166 km to the southwest of Yaoundé, and 70 km from the
deep seaport and industrial zone of Kribi.
A version
of this announcement including maps and photographs can be viewed
on the Company's website, http://www.bwagroupplc.com/bwa-announcements.html
Work
Completed
An initial
first pass reconnaissance drilling programme was carried out
between the 5th
and
20th
of
November 2023, consisting of nineteen
(19) shallow auger 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. 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.
A total of
91 primary samples were collected and are currently undergoing
analysis at Scientific Services CC, Cape
Town, South Africa. Drillhole details are presented in Table
1.
Heavy
mineral mineralisation was noticeable at the surface and within the
down hole intervals and provides encouraging evidence for the
potential economic accumulations of heavy mineral sands within this
marine/estuarine environment. Within the drill core, medium and
coarse-grained rutile, ilmenite and kyanite were observed in
numerous continuous horizons, stacked upon each other. These
horizons appear to be continuous layers of sand observed within the
mouth of the Nyong River and in the south of the
licence.
Where
observed, rutile and ilmenite content varied between 15-20% in the
southern areas and around 10-15% in the northern areas .
James Butterfield, interim Non-executive Chairman of BWA,
commented:
“We
are
very pleased to have completed the preliminary reconnaissance
drilling within the planned timeframe and budget at the Dehane 2
licence. BWA are even more encouraged by the presence of heavy
mineral sands that have been observed within the medium and courser
grained horizons within the drill core. BWA look forward to
receiving the analysis and defining a more comprehensive and
systematic drilling programme in the near future.”
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.
The BWAR
licences allows access to approximately 60 km of the prospective
Nyong River floodplain system, deltas, 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, 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.
Mineralisation
Rutile and
ilmenite were visible and identified in hand specimens in the
field, during the drilling. Generally, the rutile grains are
reddish and medium to coarse-grained compared to the black
finer-grained ilmenite. Mineralisation observed is generally
greater with thicker sands on the southern part of the Dehane 2
licence, compared to the Northern part where sand thickness
generally reduces slightly. 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 from four metres downhole in some holes and five
to six metres in others. This presence of micas may indicate a more
proximal location to the gneiss bedrock. The average sand thickness
in the field was approximately five metres, with thicker areas
observed in the south and slightly thinner in the north, however,
more drilling is required to confirm this trend.
The
typical drillhole lithologies consist of a thin layer of organic
soil-sandy material measuring less than 10 cm and containing less
than 5% HMS, 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 from around six to
seven meters.
Table 1:
Drillhole details. Note, that all holes were vertical.
Collar
|
Hole
ID
|
EOH
|
Field
Log
|
608183
342579
|
DH2_001
|
3
m
|
Yellow
medium sea sand, presence of heavy minerals
|
Dark yellow
medium sea sand, visible heavy minerals
|
Yellow
medium sea sand, visible heavy minerals
|
608062
342547
|
DH2_002
|
5
m
|
Yellow
medium sand, visible heavy minerals
|
Grey coarse
sand with heavy minerals
|
Dark grey
medium sand with heavy minerals
|
Black fine
sand with heavy minerals; saprock from 4,95 m presence of
micas
|
607199
344444
|
DH2_003
|
6
m
|
Yellow to
light grey medium sea sand with heavy minerals
|
Grey medium
to fine sea sand with heavy minerals
|
Yellow grey
coarse sea sand with heavy minerals; 5,70 to 6 m black silt with
micas/ EOH at expected depth
|
606754
345359
|
DH2_004
|
7
m
|
Yellow to
brown medium sea sand, visible heavy minerals
|
Grey to
dark grey medium to coarse sand with heavy minerals down to 5.7
m
|
From 5.7 to
6.9 m, Black silt with micas and heavies. From 6.9 m black peat
/EOH no bedrock reached.
|
606537
345812
|
DH2_005
|
6
m
|
Yellow
medium sand with heavy minerals
|
Yellow grey
medium sand with heavy minerals
|
Grey medium
sand with heavies to 5.65 m and from 5.65 black silt with micas and
heavy minerals.
|
606316
346242
|
DH2_006
|
6
m
|
Yellow to
reddish yellow medium sand with heavy minerals
|
Grey medium
to coarse sand with heavies down to 5.5 m and from 5.5 m black silt
with micas and heavies.
|
606366
346263
|
DH2_007
|
7
m
|
Yellow
medium sand with heavy minerals
|
Grey medium
sand with heavy minerals
|
Grey coarse
sand with heavy minerals. Black silt with micas from 6.4 to
7.0m
|
605860
347095
|
DH2_008
|
7
m
|
Yellow
medium sand with heavy minerals
|
Yellow
reddish fine to medium sand with heavy minerals
|
Dark grey
fine to medium grain sand with heavy minerals
|
Black silt
with micas and heavy minerals. From 6.40 to 7 m black peat/clay
with micas
|
605380
348028
|
DH2_009
|
3.5
m
|
Grey fine
sand with heavy minerals
|
Yellow
coarse sand with heavy minerals. Dark grey fine sand with heavy
minerals at 3.45 to 3.5 m
|
604999
348948
|
DH2_010
|
3
m
|
Yellow
medium to black coarse sand with heavy minerals.
|
604680
349853
|
DH2_011
|
3
m
|
Yellow
medium to grey fine sand with heavies. Black silt with micas and
heavy minerals at 2.20 to 3 m
|
604372
350848
|
DH2_012
|
3
m
|
Yellow
medium to grey fine sand with heavy minerals
|
604052
351774
|
DH2_013
|
6
m
|
Yellow
medium sand with heavy minerals and patches of oxidation
|
Brown fine
sand with heavy minerals. Fine black silt with micas at 4.10 to
4.5m
|
Stiff
organic clay with micas
|
603703
352697
|
DH2_014
|
4
m
|
Yellow to
grey medium to fine sand with heavy minerals.
|
Grey fine
and with black organic silt with micas at 2.25 to 2.50 m
|
Yellow
coarse sand with heavy minerals
|
603295
353622
|
DH2_015
|
5
m
|
Yellow
medium to grey fine sand with heavies. Presence of black
peat/organic clay with micas at 2.7 to 3.5m
|
Alternating
black peat / organic clay with micas and coarse sand at 4.8 to
5m
|
602886
354537
|
DH2_016
|
5
m
|
Yellow to
coarse medium sand with heavies.
|
Fine to
silt grey sand with heavy minerals. Organic black clay at 2.10 to
2.15, 3.50 to 3.6 and 4 to 4.10 m with micas
|
602456
355429
|
DH2_017
|
4
m
|
Grey,
yellow medium sand with heavy minerals
|
Grey fine
sand with heavy minerals
|
Yellow
coarse sand with heavy minerals
|
Fine grey
sand with heavy minerals
|
602090
356655
|
DH2_018
|
3
m
|
Grey medium
to coarse sand with heavy minerals
|
600321
360176
|
DH2_019
|
3
m
|
Light
yellow medium sand with heavy minerals
|
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 Emmanuel Simo, MSc., Senior Geologist and Chief
Geologist for BWA, 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
Simo 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
Hogg has 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. Mr Hogg consents 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
Interim
Chairman
|
+44 (0)
7770 225 253
enquiries@bwagroupplc.com
|
Allenby
Capital Limited
Corporate
Adviser
|
+44 (0)20
3328 5656
Nick
Harris/Lauren Wright
|
Glossary
of Technical Terms:
“%”
|
percent;
|
Al2O3
|
Aluminium
Oxide;
|
“ALS”
|
Australian
Laboratory Services;
|
“AMS”
|
Addison
Mining Services;
|
"BWA"
|
BWA Group
PLC;
|
"CP"
|
Competent
Person;
|
"CRM"
|
Certified
reference material or standard,
|
"DTM"
|
Digital
Terrain Model. Computerised topographic model;
|
"DUP"
|
Décret
d'Utilité Publique (Public Utility Decree);
|
"HMS"
|
Heavy
Mineral Sands;
|
“km”
|
Kilometre;
|
"TiO2"
|
Titanium
dioxide, also known as titanium (IV) oxide. Generally sourced from
ilmenite, rutile, and anatase;
|
"Zr"
|
Zircon or
Zirconium;
|
“JORC
(2012)”
|
2012
edition of the JORC code;
|
“JORC”
|
Australasian
Code for Reporting of Exploration Results, Mineral Resources and
Ore Reserves, as published by the Joint Ore Reserves Committee of
The Australasian Institute of Mining and Metallurgy, Australian
Institute of Geoscientists and Minerals Council of
Australia;
|
“m”
|
metre;
|
“ME-XRF11bE”
|
Analysis
by Fusion/XRF;
|
“QA/QC”
|
Quality
Assurance/Quality Control,
|
“XRD”
|
X-Ray
diffraction analysis (XRD) is a non-destructive technique that
provides detailed information about the crystallographic structure,
chemical composition, and physical properties of a
material.
|