Empire
Metals Limited / LON: EEE / Sector: Natural Resources
28 May 2024
Empire Metals
Limited
('Empire' or the
'Company')
Results
from Diamond Drilling Programme at Pitfield
Empire Metals Limited (LON:
EEE), the AIM-quoted resource exploration
and development company, is pleased to
announce the results from the four Diamond Core drillholes recently
completed at the Pitfield
Project in Western Australia ('Pitfield' or the 'Project'). These
drillholes were completed at the Cosgrove and Thomas targets and
provide important geological information ahead
of finalising the Company's JORC Exploration Target.
Highlights
· 800
metres of diamond core drilling (four drillholes) tested two known
zones of extensive, thick, shallow sandstone-rich beds that host
higher grade TiO2 mineralisation.
·
Analytical lab results, along with the core logging, for
these drillholes has confirmed extensive, strong weathering of the
uppermost 40m of mineralised bedded sandstones, coincident with
high TiO2 grades, which extend the entire length of the
drillholes.
·
Excellent core recovery was achieved from all four diamond
core drillholes, with every drillhole returning significant
intercepts:
§ DD24COS002
intersected 201.8m @ 6.32%
TiO2 from 0m to end of hole;
§ DD24COS003
intersected 201.8m @ 6.14%
TiO2 from 0m to end of hole;
§ DD24TOM002
intersected 201.8m @ 4.95%
TiO2 from 0m to end of hole; and
§ DD24TOM003
intersected 181.9m @ 6.83%
TiO2 from 19.9m to end of hole, the top 19.9m
being sand cover.
Shaun Bunn, Managing Director,
said: "The
excellent core recovery
achieved from the near surface, strongly weathered mineralised
bedded sandstones has provided invaluable samples and geological
data, and additional quantitative and
qualitative mineralogical and metallurgical studies have now been
instigated to provide a clearer picture of the mineral assemblage
in the uppermost 40m zone. In parallel with this work, preparation
of the Company's JORC Exploration Target for the Cosgrove and
Thomas mineral prospects, announced as part of Empire's Development
Plan on 27 March 2024, continues under the guidance of mineral
resource consultants Snowden Optiro, and we expect to release these
results shortly."
The Pitfield
Project
Located within the Mid-West region of Western
Australia, near the northern wheatbelt town of Three Springs,
Pitfield lies 313km north of Perth and 156km south of Geraldton,
the Mid West region's capital and major port. Western Australia is
ranked as one of the top mining jurisdictions in the world
according to the Fraser Institute's Investment Attractiveness Index
published in 2023, and has mining-friendly policies, stable
government, transparency, and advanced technology expertise.
Pitfield has existing connections to port (both road & rail),
HV power substations, and is nearby to natural gas pipelines as
well as a green energy hydrogen fuel hub, which is under planning
and development (refer Figure 1).
Figure 1.
Pitfield Project Location showing the Mid-West Region
Infrastructure and Services.
Results from Diamond Core Drilling
Programme: February - March 2024.
The diamond core drilling programme
at Pitfield was completed in late March (announced 18 April 2024)
and consisted of four diamond core drillholes totalling 807m. The
diamond core holes were each drilled to a final downhole depth of
202m. Excellent core recovery was achieved from the diamond
drilling, commencing from surface to the end of the
hole.
The diamond drill core, particularly
the near-surface core, provided important samples for ongoing
metallurgical and mineralogical studies, and sections of core have
been submitted for Tescan Integrated Mineral Analyzer ('TIMA')
analysis and Scanning Electron Microscope ('SEM') microprobe work
to determine the mineral assemblage within the strongly weathered
zone.
The Company has previously reported
on the results from the 40 Reverse Circulation ("RC") drillholes
drilled in February-March 2024 which were focused on proving up the
extent and grade of the mineralisation at two key mineral prospects
(Cosgrove and Thomas), which have been identified as having thick,
high-grade, near-surface, bedded TiO2 mineralisation,
each being over 7km in strike length (refer Figure 2). Whilst these
two prospects combined cover barely one fifth of the total
mineralised system area they are currently the most advanced
explored prospects and remain the focus of the Company's mineral
resource development work going forward in the near
term.
Figure 2. Grey-scale magnetics map overlain
by airborne gravity survey results with the location of the 2023
and 2024 RC and Diamond Core drillholes, with Cosgrove and Thomas
target areas shown.
Since commencing its maiden drill
campaign in March 2023 the Company has completed a total of 107
drillholes for 17,003m (including seven diamond core holes for
2,025m), of which 67 RC drillholes and six diamond core drillholes
were drilled within the Cosgrove and Thomas prospects (Figures 3
and 4). The drilling shows a high-grade (>5% TiO2),
more than 1km wide central core running on a N-S trend through both
mineral prospects, which could join between the two prospects
thereby representing a potential total strike length of more than
20km. Significantly, the RC drillhole results clearly indicated
elevated TiO2 grades are present within the top 40m
(announced 15 May 2024). No near-surface samples were collected
from the original diamond core holes drilled in Q4 2023 (announced
29 November 2023) due to the drilling technique, however the four
recent diamond core drillholes were far more successful in
recovering core from the weathered zone (refer Table 1).
Figure 3. Cosgrove Prospect Drill Collar
Location: including colour coding for drill holes based on
TiO2 assay grade.
Figure 4. Thomas
Prospect Drill Collar Location: including colour coding for drill
holes based on TiO2 assay grade.
Hole ID
|
Depth From
(m)
|
Depth To
(m)
|
EOH (m)
|
Interval
(m)
|
Grade (TiO2
%)
|
DD24COS002
|
0.0
|
201.8
|
201.8
|
201.8
|
6.32
|
DD24COS003
|
0.0
|
201.8
|
201.8
|
201.8
|
6.14
|
DD24TOM002
|
0.0
|
201.8
|
201.8
|
201.8
|
4.95
|
DD24TOM003
|
19.9
|
201.8
|
201.8
|
181.9
|
6.83
|
Table
1.
Significant Intercepts from 2024 Diamond Core Drilling
Logging of the recent diamond core
has confirmed the substantial alteration from surficial weathering
of the top 40m of bedded sandstones, and provided invaluable core
sections for mineralogical analysis, for both TIMA and SEM
microprobe work. The strong, deep weathering has clearly altered
the assemblage of primary ore and gangue minerals to a secondary
assemblage of minerals. Titanium is known to be very stable in
surficial weathering processes, showing little mobility and so can
concentrate in zones of weathering. The elevated TiO2
grades consistently noted in the near-surface zone are therefore
believed to be due to the weathering process concentrating titanium
in place into a secondary mineral assemblage. Precise, detailed
mineralogical investigations have been initiated, and are being
expedited, to determine the mineralogical residence of titanium in
this zone of weathering.
The photos taken from diamond core
drillhole DD24COS002 are presented in Figures 5 to 7 below. The
difference between the strongly weathered sandstones, transitional
sandstones and fresh bedded sandstones zones are clearly indicated
and provide further evidence of the impact of weathering and its
effect on the mineral assemblage.
Figure 5. Core trays #1 to #4 for DD24COS002 showing
strongly weathered sandstone to circa 10 meters with interval from
0.8m to 8.75m averaging 7.07% TiO2.
Figure 6.
Core trays #7 and #8 for DD24COS002 showing highly oxidised
transitional sandstone, with the interval from 14.75m to 20.6m
averaging 6.79% TiO2.
Figure 7. Core trays #24 & #25 for DD24COS002
showing fresh bedded sandstone, with the interval from 58m to 64m
averaging 6.58% TiO2.
Work in
Progress - Near Term
The Company's exploration team, under the
guidance of Snowden Optiro, are completing the QA/QC and geological
modelling required in the development of the JORC Exploration
Target for the Cosgrove and Thomas mineral prospects.
Snowden Optiro's scope of work
includes:
·
Undertaking a QA/QC review of all three drill programmes
completed since March 2023, including a review of standards and
duplicates;
·
Creating a geological model in Leapfrog Geo 3D ('Leapfrog')
to primarily include the mineralised bedded sandstone
units;
·
Creating a weathering model in Leapfrog;
·
Creating mineralisation grade shells within the bedded
sandstone units at different TiO2 % cut offs;
·
Creating a topographic profile using drill collars and local
survey data;
·
Generating Exploration Targets for Cosgrove and Thomas, using
domain volumes and volume weighted average grade; and
·
Compilation of a JORC Table (sections 1 and 2).
Mineralogical and metallurgical
studies are underway on the initial bulk metallurgical sample,
collected from the diamond core recovered from DD23TOM001. The bulk
sample is representative of the fresh bedded sandstone and was
taken from a continuous 267m interval, between 126m and 393m
downhole, below the zone of weathering. This testwork programme
will include ore characterisation as well as testing of various
unit processes for mineral separation and titanium extraction from
the minerals.
Specific testwork
includes:
·
Mineralogical composition and size
distribution;
·
Comminution characteristics;
·
Gravity and magnetic separation;
·
Flotation; and
·
General leach characteristics.
A second bulk metallurgical sample
has also been collected from the most recent diamond drilling
programme (core from DD24COS002). This sample is representative of
the near-surface, strongly weathered zone, being taken from an 8m
interval, between 2.7m and 10.7m downhole. This sample is currently
undergoing sample preparation ahead of running it through a similar
metallurgical testwork programme to the one mentioned
above.
Competent Person
Statement
The technical information in this
report that relates to the Pitfield Project has been compiled by Mr
Andrew Faragher, an employee of Eclipse Exploration Pty Ltd, a
wholly owned subsidiary of Empire. Mr Faragher is a Member of the
Australian Institute of Mining and Metallurgy. Mr Faragher has
sufficient experience that is relevant to the style of
mineralisation and type of deposit under consideration and to the
activity being undertaken to qualify as a Competent Person as
defined in the 2012 Edition of the 'Australasian Code for Reporting
of Exploration Results, Mineral Resources and Ore Reserves'. Mr
Faragher consents to the inclusion in this release of the matters
based on his information in the form and context in which it
appears.
Market Abuse Regulation (MAR)
Disclosure
Certain information contained in
this announcement would have been deemed inside information for the
purposes of Article 7 of Regulation (EU) No 596/2014, as
incorporated into UK law by the European Union (Withdrawal) Act
2018, until the release of this announcement.
**ENDS**
For further information please visit
www.empiremetals.co.uk
or contact:
Empire Metals
Ltd
Shaun Bunn / Greg Kuenzel / Arabella
Burwell
|
Tel: 020 4583 1440
|
S. P. Angel
Corporate Finance LLP (Nomad & Broker)
Ewan Leggat / Adam Cowl / Kasia Brzozowska
|
Tel: 020 3470 0470
|
Shard Capital
Partners LLP (Joint Broker)
Damon Heath
|
Tel: 020 7186 9950
|
St Brides Partners Ltd (Financial
PR)
Susie Geliher / Charlotte
Page
|
Tel: 020
7236 1177
|
About Empire Metals
Limited
Empire Metals is an AIM-listed (LON:
EEE) exploration and resource development company with a project
portfolio comprising copper, titanium and gold interests in
Australia and Austria.
The Company's strategy is to develop
a pipeline of projects at different stages in the development
curve. Its current focus is on the Pitfield Project in Western
Australia, which has demonstrated to contain a newly recognised
giant titanium-rich mineral system that hosts a globally
significant titanium discovery.
The Company also has two further
exploration projects in Australia; the Eclipse Project and the
Walton Project in Western Australia, in addition to three precious
metals projects located in a historically high-grade gold producing
region of Austria.