REG - 80 Mile PLC - Maiden Exploration Target for Ilmenite at Dundas
23/09/2024 07:00
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RNS Number : 1365F 80 Mile PLC 23 September 2024
AIM: 80M
FSE: S5WA
23 September 2024
80 Mile PLC / Ticker: 80M / Market: AIM / Sector: Mining
Maiden Exploration Target for Hard Rock Ilmenite at Dundas
80 Mile plc ('80 Mile' or the 'Company'), the AIM, FSE listed and Pink-Market
traded exploration and development company with projects in Greenland and
Finland, is pleased to announce its independent maiden JORC Exploration Target
('Exploration Target') for ilmenite-bearing hard rock sills at the Dundas
Ilmenite Project in Northwest Greenland ('Dundas' or the 'Project'). The
generation of an Exploration Target is an important milestone and a
significant first step towards the development of a Mineral Resource Estimate
for the hard rock component of the Dundas Ilmenite Project.
Highlights:
· SRK Exploration Ltd ('SRK EX'), a leading UK-based mineral
resources consulting group, completed the data review and geological modelling
required to develop the JORC Exploration Target for the ilmenite-bearing hard
rock sills.
· This Exploration Target is in addition to the previously
disclosed and existing 2019 Mineral Resource Estimate ('MRE') at Dundas. With
this update for the hard rock material, when combined with the existing MRE,
Dundas represents a truly unique opportunity for the exploitation of
ilmenite-bearing material.*
· The integration of multiple exploration datasets that include
sonic drilling data from 2017 and 2018, trenching results, diamond drilling
data from 2022, and surface sampling data has enabled SRK EX to deliver a
robust estimation of the Exploration Target.
· The Exploration Target estimates a potential 170 to 540 million
tonnes of ilmenite-bearing material with a TiO₂ grade range of 4.7 to 5.5%.
These estimates provide a strong foundation for further exploration efforts
and the development of the maiden hard rock MRE at the Dundas Ilmenite
Project.
· The Exploration Target is limited to 80 Mile's existing Mining
Licence (Moriusaq West Beach, Moriusaq East Beach, Iterlak West Sill 1,
Iterlak West Sill 2, and Iterlak East Beach) and relates to the potential for
hard rock ilmenite mining beneath and adjacent to the raised beaches.
· Future exploration and development plans will advance the
Exploration Target towards a defined Mineral Resource Estimate.
Eric Sondergaard, Managing Director of 80 Mile, commented:
"This independently produced Exploration Target continues to enhance the
potential of the Dundas Ilmenite Project. The data compiled and analysed by
SRK EX underscores the significant potential of the hard rock ilmenite-bearing
sills within our mining license area and represents a major step forward in
understanding the full scale of the Dundas ilmenite resource.
Moving forward, we are committed to advancing our exploration efforts to
further develop the potential resource and assess the feasibility of
incorporating hard rock mining into our existing operational plans. The
possibility of leveraging existing infrastructure from the planned beach sand
mining operations to exploit the hard rock resource presents a unique
opportunity to maximize the value of the Dundas Ilmenite Project, and we look
forward to providing further updates as we continue our work."
*For further details, see RNS 'Dundas Ilmenite Resource Update
(https://polaris.brighterir.com/public/bluejay_mining/news/rns/story/w0jnqnx)
', dated 16 April 2024.
Competent Person Statement
The technical information in this report that relates to the Exploration
Target for the Dundas Project has been compiled by Mr. William Kellaway, a
Fellow of the Australian Institute of Mining and Metallurgy and an employee of
SRK Exploration Ltd. Mr. Kellaway has sufficient experience 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. Kellaway consents to the inclusion
in this release of the matters based on his information in the form and
context in which it appears. Mr. Kellaway has no affiliations with any 80 Mile
plc employee and has never been employed by 80 Mile plc.
Market Abuse Regulation (MAR) Disclosure
The information contained within this announcement is deemed by the Company to
constitute inside information as stipulated under the Market Abuse Regulations
(EU) No. 596/2014 ('MAR') which has been incorporated into UK law by the
European Union (Withdrawal) Act 2018.
For further information please visit http://www.80mile.com
(http://www.80mile.com) or contact:
Eric Sondergaard 80 Mile plc enquiry@80mile.com
Ewan Leggat / Adam Cowl SP Angel Corporate Finance LLP +44 (0) 20 3470 0470
(Nominated Adviser and Broker)
Harry Ansell / Katy Mitchell Zeus Capital Limited +44 (0) 20 38295000
(Joint Broker)
Tim Blythe / Megan Ray / Said Izagaren BlytheRay +44 (0) 20 7138 3205
(Media Contact)
Exploration Target
The Exploration Target for the Dundas Ilmenite Project was developed by SRK
Exploration Ltd ('SRK EX'), part of the SRK Group, a leading international
mining consultancy renowned for its expertise in mineral exploration and
resource estimation, in accordance with the 2012 JORC Code. This Exploration
Target is primarily based on exploration results obtained to date, with the
exception of the Iterlak West sills, for which data is limited to mapping and
visual observation. Their inclusion is contingent on further exploration being
conducted in the foreseeable future, as outlined in the exploration
recommendations. The primary rationale for establishing this Exploration
Target is to utilize planned infrastructure and equipment intended for the
future extraction of Ti-rich mineral sands, to potentially support ilmenite
extraction from the underlying hard rock sills. The modelled volumes of
potentially mineralised material have been evaluated with consideration of
Reasonable Prospects for Eventual Economic Extraction (RPEEE).
The Exploration Target relates to potential ilmenite mineralisation within the
hard rock sills underlying and adjacent to the Moriusaq and Iterlak areas.
This target incorporates ilmenite-bearing sills identified through a
comprehensive exploration approach, including sonic drilling, trenching, and
geological mapping. These methods have been supported by various surface
sampling programs.
Table 1. Summary of Parameters used in the Exploration Target
Area Surface area, km2 Thickness, m Density, g/cm3 Grade, TiO₂%
Min. Max. Min. Max. Min. Max.
Moriusaq West Beach 5.58 5.58 5 10 3.07 4.7 5.5
Moriusaq East Beach 0.91 1.77 5 10 3.07 4.7 5.5
Iterlak West Sill 1 2.17 2.17 5 25 3.07 4.7 5.5
Iterlak West Sill 2 1.53 1.53 5 25 3.07 4.7 5.5
Iterlak East Beach 0.89 0.89 5 10 3.07 4.7 5.5
Total 11.08 11.94
The Exploration Target is defined by several distinct areas with varying sill
thicknesses and lateral extents, identified as Moriusaq West Beach, Moriusaq
East Beach, Iterlak West Sill 1, Iterlak West Sill 2, and Iterlak East Beach.
The total area considered spans approximately 11.08 to 11.94 km², with
estimated sill thicknesses ranging from 5 to 25 meters. The model has been
constrained using geological data obtained from drilling and surface mapping,
ensuring that the tonnage estimates reflect the potential mineralisation.
Based on the geological data available, including density measurements and
TiO₂ assay results, the estimated range of potential ilmenite mineralisation
for the combined Exploration Target is between 170 and 540 million tonnes,
grading between 4.7% and 5.5% TiO₂. The potential quantity and grade of the
Exploration Target are conceptual in nature. There has been insufficient
exploration to define a Mineral Resource and it is uncertain if further
exploration will result in the Exploration Target being delineated as a
Mineral Resource. Further investigation into the lateral continuity and
thickness variability of the sills, particularly below the raised beaches, is
necessary to refine these estimates.
Figure 1. Areas Included in the Exploration Target
Exploration Data and Techniques
The definition of the Exploration Target has been supported by data collected
through various exploration programs, including:
2017 Sonic Drilling Data
§ The 2017 sonic drilling data provided depths to basement levels with
"bedrock confidence" attributes, indicating how confident on-site geologists
were that bedrock had indeed been intercepted.
§ Where possible, the drilling logs identified bedrock lithologies such as
sills, mudstone, and amphibolite. If the lithology was not logged or bedrock
was not intercepted, the logs contained "unspecified" data entries.
2018 Sonic Drilling and Trenching Data
§ In 2018, excavator trenches were used to twin sonic drill holes, providing
additional indications of the depth to bedrock and information on bedrock
lithology.
§ Downhole lithology logs from the 2018 campaign helped define the Iterlak
East beach target, giving insights into the subsurface geological structure.
2022 Drilling Data
§ The 2022 drilling data involved several drilling methods; however, the data
quality is questionable due to various problems encountered during the drill
programme.
§ Despite these issues, the 2022 drilling produced more bedrock samples than
earlier programmes, which were later assayed by 80 Mile in 2024.
Surface Sampling Data (Various Years)
§ Surface sampling involved a limited amount of ad hoc grab sampling on
outcrops during various site visits. 80 Mile has since assayed these grab
samples to gain insights into surface mineralisation.
Geological Setting and Mineralisation
The Dundas Project is located within the Thule Black Sand Province in
Northwest Greenland, an area characterized by significant deposits of heavy
mineral sands derived from the erosion of high-TiO₂ and P₂O₅ tholeiitic
basalt dykes and sills. These magmatic intrusive units are part of the Thule
Dyke Swarm, which comprises a series of D2 dykes and S1 sills that have been
mapped extensively in the hinterland and below the raised beach deposits.
The ilmenite-bearing sills are primarily composed of high-TiO₂ tholeiitic
basalt and are interbedded with sedimentary sequences, including black-grey
shales, siltstones, fine-grained sandstones, and thin dolomitic units.
D2 Dykes and S1 Sills:
§ The D2 dykes, dated between 675-630 Ma, are the volumetrically dominant
magmatic units in the area. These dykes are primarily oriented WNW-ESE and are
mostly vertical or sub-vertical, dipping steeply at 75° either north or
south. Their alignment is largely parallel to the regional structural grain,
particularly the faults associated with the Thule half-graben system. These
dykes, composed of high-TiO₂ tholeiitic basalt, have been identified as a
key source of ilmenite-bearing sands found in the raised beach deposits.
§ Regionally, the S1 sills vary considerably in thickness, ranging from a few
meters to approximately 100 meters, with most sills estimated by historical
work to be between 20 and 50 meters thick (Dawes, 2006). These sills are
described as deeply weathered, especially in flat tableland areas where the
upper chilled margins have been eroded away, leaving behind gabbroic cores
that have disintegrated into coarse sand. These sills are notably rich in
opaque minerals, with ilmenite concentrations reaching up to 15% by volume.
The sills in the project area vary in thickness from a few meters to over 30
meters and display lateral continuity up to several kilometres. However, the
extent of these bodies is not fully understood and requires further
investigation.
Historical mapping and sampling conducted by Dawes (1991, 2006) provide
important baseline data on the compositional characteristics of these
intrusions. Analysis of seven samples of D2 dykes and S1 sills indicated
TiO₂ content ranging from 3.68 to 5.25 wt.% and P₂O₅ content from 1.21
to 2.63 wt.%.
Mineralisation Style and Distribution
The heavy mineral sands of the Thule Black Sand Province are believed to
originate from the mechanical erosion of these D2 dykes and S1 sills. The
erosion process liberated high concentrations of ilmenite, which were
subsequently transported and deposited within the raised beach environments of
the Thule Black Sand Province.
The greatest cumulative thickness and most significant concentration of the S1
sills occurs within the Moriusaq half-graben, where clastic sedimentary strata
host approximately 15 master sills that comprise between 30% and 40% of the
local stratigraphy (Dawes, 2006). The sedimentary sequence in this region is
dominated by black-grey, locally pyritic shales, interbedded with siltstones,
fine-grained sandstones, and occasional thin dolomitic layers (Stensgaard et
al., 2015). This stratigraphic setting, combined with the presence of
high-TiO₂ sills, creates a favourable environment for the accumulation of
ilmenite-rich mineral sands.
Further studies by Nielsen et al. (2017) suggest that within the Dundas
Formation, the sills account for approximately 31% of the total stratigraphic
volume, within a total estimated stratigraphic thickness of 900 meters around
the Moriusaq area. This makes the Dundas Formation a highly prospective zone
for further exploration, particularly for ilmenite mineralization.
A schematic cross-section of the area north of Moriusaq, as provided by
Nielsen et al. (2017), illustrates the complex interplay between the dykes and
sills within the Dundas Formation (Figure 3). The cross-section reveals the
distribution of multiple stacked sills, some of which reach up to 50 meters in
thickness, contributing significantly to the overall potential of the ilmenite
resource in this region.
Figure 2. Regional Geological Map of the Dundas Project Area
Figure 3.GEUS- constructed Schematic Cross Section from A1-A2 with Stacked
Sill Section
Methodology to Determine Tonnage and Grade Range for the Exploration Target
Tonnage Estimation
Area Calculation
SRK EX utilized GIS software to model 2D shapefiles representing the outlines
of the ilmenite-bearing sills included in the Exploration Target. Each
shapefile corresponds to a sill located either beneath the Moriusaq raised
beaches within 80 Mile's mining licence or sills exposed above the beaches in
areas assumed to be accessible. For sills beneath the raised beach deposits,
2D outlines of wireframes used in the 2019 Mineral Resource Estimate (MRE)
were selected as the initial sill area. A 50-meter-wide buffer zone from the
Moriusaq coastline was applied to prevent seawater ingress into the mine pit.
Moriusaq Beach Area (West of Iterlak Delta)
Sonic drilling data suggest that bedrock contacts are predominantly at depths
less than 10 meters, with most intervals logged as igneous sills. However,
areas where bedrock has been logged as mudstone or amphibolite have been
excluded from the Exploration Target. In areas where drilling data is sparse,
sill presence is inferred based on nearby exposed sills and geological
indicators.
Iterlak Area (East of Iterlak Delta)
Sonic drilling from 2018 indicates the presence of bedrock sill contacts or
clay-silt glacial till deposits. The sill has been modelled only where
consistently intercepted by drilling.
Iterlak West Sills
Two exposed sills on high ground west of the Iterlak Delta (Iterlak West 1 and
Iterlak West 2) have been included in the Exploration Target based on their
visibility and potential accessibility for mining.
Thickness and Lateral Continuity
Dolerite sills across the Moriusaq region have a tabular morphology and are
laterally discontinuous. Based on geological mapping, imagery, and field
observations, the sills generally extend up to 5 km in one direction and taper
in thickness towards the edges. A conservative average sill thickness of 20
meters was estimated by GEUS for the Moriusaq area (Nielsen et al., 2017).
Thickness estimates applied by SRK EX for the Exploration Target range from
5 meters to 10 meters for the one-sill model to account for lateral and
vertical discontinuity.
Moriusaq Beach Target
A minimum sill thickness of 5 meters and a maximum of 10 meters were applied
to modelled sill volumes beneath the raised beach deposits.
Iterlak West Target
Sills are assumed to have a minimum thickness of 5 meters and a maximum of 25
meters.
Iterlak East Target
Assumed sill thickness parameters are the same as those for Moriusaq beaches:
a minimum of 5 meters and a maximum of 10 meters.
Density
Density data for the sills were obtained from the 2022 sonic drilling program,
where 19 samples of bedrock sill material were selected for specific gravity
measurements in 2024. The mean specific gravity is 3.07, with a low standard
deviation of 0.04, indicating minimal internal differentiation. This value has
been applied to both minimum and maximum tonnage estimates.
Table 2. Density Data from 2024 Bedrock Assays
2022 Spec. Gravity Count Minimum Maximum Mean Std. Deviation Lower Quartile Upper Quartile
Sampling Programme
19 2.97 3.12 3.07 0.04 3.06 3.10
Additional Modifying Factors
Several modifying factors, such as the sills' consistent dip to the
south-southeast and potential variations in thickness due to erosion, have
been considered. However, these factors require further investigation and are
not included in the current tonnage estimates.
TiO₂ Grade Estimation
TiO₂ grades for the Moriusaq sills were derived from sonic drilling,
trenching, and surface grab sampling conducted between 2018 and 2022. In
total, 13 samples from 2018 and 74 samples from 2022 were analysed. The mean
TiO₂ grade is 5.2 wt.%, with values ranging between 4.7 wt.% and 6.0 wt.%.
Table 3. TiO₂ Data from 2018-2022 Sampling Programmes
Sampling Programme TiO₂ Count Minimum Maximum Mean Std. Deviation Lower Quartile Upper Quartile
2022 74 0.64 6.93 5.21 1.10 4.72 5.97
2018 12 4.15 8.17 5.46 1.11 4.72 6.04
For the Exploration Target, SRK EX assumed a minimum TiO₂ grade of 4.7 wt.%
and a maximum of 5.5 wt.%. The maximum grade was adjusted down from the upper
quartile to account for internal differentiation and TiO₂ mineral
deportment.
TiO₂ Mineral Deportment
TiO₂ is hosted in ilmenite and titanomagnetite phases within the Steensby
Land Complex sills. Alteration processes have transformed titanomagnetite into
ilmenite, upgrading the resource. An ilmenite to titanomagnetite ratio of
1±0.4 and a maximum ilmenite content of 9 wt.% were estimated. For TiO₂
extraction, the total in-situ TiO₂ must be downgraded by 10-20% to account
for TiO₂ locked in titanomagnetite.
Future Exploration and Development Plans
The proposed exploration activities are aimed at advancing from the current
Exploration Target to a Mineral Resource Estimate. These activities will
include the following:
§ Conduct detailed mapping to verify the extent and thickness of the exposed
sills at Iterlak West included in the Exploration Target. Document the
thickness where sill contacts are exposed.
§ Perform outcrop sampling of exposed sills to collect grade data. This may
involve channel sampling along vertical profiles on exposed sill margins to
evaluate grade variability.
§ Undertake diamond drilling to confirm the presence, thickness, and
variability of sills beneath the raised beaches. Obtain samples for assay,
density measurements, geotechnical parameters, and processing test work. Some
drilling should target areas outside the current Exploration Target to
validate previous logging indicating the absence of sills.
§ Carry out drilling on exposed sills to obtain additional data for the same
purposes as the drilling beneath the raised beaches.
§ Initiate preliminary test work to determine if a marketable ilmenite
concentrate can be produced from the sills. This should also verify
assumptions regarding titanium deportment from previous studies. Share results
with the mineral sands process plant design team to identify any additional
requirements.
§ Reassess existing hydrological, hydrogeological, and mine waste management
studies related to mineral sands mining. Evaluate necessary modifications to
accommodate hard rock mining.
§ Review current permits and mineral licences to determine if amendments are
required to allow for hard rock mining activities.
JORC Code, Table 1: Section 1: Sampling Techniques and Data
Criteria JORC Code Explanation Commentary
Sampling Techniques § Nature and quality of sampling (e.g. cut channels, random chips, or Auger Sampling
specific specialised industry standard measurement tools appropriate to the
minerals under investigation, such as downhole gamma sondes, or handheld XRF § Open flight auger drilling using motorised equipment was used to obtain
instruments, etc.). These examples should not be taken as limiting the broad samples of in-situ sediments.
meaning of sampling
Sonic Drill Core Sampling
§ Include reference to measures taken to ensure sample representativity and
the appropriate calibration of any measurement tools or systems used § Sonic core with a diameter of 100 mm was extruded into a clean core tray.
Sampling was carried out at 1 m intervals. After it was photographed and
§ Aspects of the determination of mineralisation that is material to the logged, each interval of core was split equally down its long axis with one
Public Report half being retained as a sample and the other half discarded (unless used as a
duplicate).
§ In cases where "industry standard" work has been done this would be
relatively simple (e.g. 'RC drilling was used to obtain 1m samples from which Direct Push and Diamond Core Drilling
3kg was pulverised to produce a 30g charge for fire assay'). In other cases,
more explanation may be required, such as where there is coarse gold that has § Drilling was performed using a Geoprobe 6712DT drill rig, capable of direct
inherent sampling problems. Unusual commodities or mineralisation types (e.g. push tooling (pneumatic hammer) and rotational drilling from an auger head
submarine nodules) may warrant disclosure of detailed information. (auger, air- rotary and coring).
§ The direct push samples were collected over the length of the 152 cm sample
barrel. Each sample was cut to 0.5m and 1m intervals (to fit the core box).
§ Diamond core samples were collected over a nominal interval length of 1m
within lithological units.
§ Outcrop grab samples were collected during site visits to assess surface
exposures of ilmenite-bearing sills.
§ All samples were logged, photographed, weighed, bagged and packed into core
boxes for transport to the laboratory.
§ Sampling assurance included; (i) twin-hole drilling, (ii) core recovery
measurements, and (iii) sample weighing for comparison with received samples
at the laboratory.
Sample Analysis
§ Sonic core and excavator trench hard rock samples from the 2018 field
program were prepared and assayed at MS Analytical in Vancouver, Canada.
Thirteen rock samples were crushed, pulverized, and assayed for various
oxides, including TiO₂, as well as other oxides by XRF method. Samples were
prepared using lithium borate fusion. The analysis included duplicates and
blanks for quality control, and internal standards (STD SY-4, STD CaCO₃, and
STD OREAS 465) were used to ensure accuracy and reliability. TiO₂ values
ranged from approximately 4.15% to 8.17%, with an average of 5.5%.
§ Seventy-four hard rock samples from the 2022 drilling campaign were
crushed, pulverized, and assayed for TiO₂ using fusion XRF analysis. The
fusion method involved lithium metaborate-tetraborate flux to ensure complete
dissolution of the sample before XRF analysis. The TiO₂ values ranged from
approximately 2.48% to 6.93%, with analyses performed at ALS Finland Oy and
ALS Loughrea labs, with results reported in 2024.
Drilling Techniques § Drill type (e.g. core, RC, open-hole hammer, rotary air blast, auger, § Open flight auger drilling using motorised equipment. The auger flight had
Bangka, sonic, etc.) and details (e.g. core diameter, triple or standard tube, a diameter of 15 cm, and the equipment was capable of drilling to 1.10 m.
depth of diamond tails, face- sampling bit or other type, whether core is
oriented and if so, by what method, etc.). § Sonic drilling using a tractor-mounted CompactRotoSonic Tractor Mast CRS-T
sonic drill rig from Eijkelkamp SonicSampDrill producing core with a diameter
of 100 mm. Holes were drilled, where possible, through the full thickness of
beach sediments and into underlying bedrock far enough to ensure that bedrock
had been reached.
§ The direct push samples were collected using a 7.6 cm inner diameter and a
9.5 cm outer diameter sampler. Markers at 10 cm intervals were drawn on these
tools to measure the drill run length prior to the run. The pneumatic hammer
on the head of the rig is used to hammer a 152 cm sample barrel containing a
PVC liner into the ground (minimising sample mixing and contamination from the
melting of ice). The sample barrel was then encased by rotational auger
drilling down to the 152 cm depth. The sample barrel was withdrawn from within
the auger hole and the sample preserved in the PVC liner then removed.
§ The diamond core samples were collected using a lead HQ3 outer casing which
is 263 cm in length and includes a 152 cm long inner sample barrel with an
inner diameter of 6.1 cm. The HQ casing is advanced through the ground using
water and bentonite, with the inner tube assembly locked into the lead HQ core
barrel. When the desired depth is reached or the inner tube is filled to
capacity, the assembly is removed from the core barrel via overshot and
wireline and the sample is blown out using water pressure.
Drill Sample Recovery § Method of recording and assessing core and chip sample recoveries and Auger Sampling
results assessed.
§ A steel tray or plastic sheet was placed on the ground at every drilling
§ Measures were taken to maximise sample recovery and ensure the location. The auger was collared through a hole in the centre of the
representative nature of the samples. tray/sheet. This meant that any sample material falling from the auger flight
when it was pulled from the hole was retained on the tray/sheet and not lost
§ Whether a relationship exists between sample recovery and grade and whether or contaminated by surface material.
sample bias may have occurred due to preferential loss/gain of fine/coarse
material. § The nature of auger sampling in soft sediments prohibits the ability to
measure the length of recovered material. It has therefore been assumed that
100% recovery was achieved at every location. SRK ES is not aware of any
reasons why significant loss of sample may have occurred.
Sonic Drilling
§ Core was extruded from the core barrel directly into a clean core tray with
the aid of vibration from the sonic head.
§ On-site geologists obtained drilled from and to depths from the driller and
assigned these to the recovered core. The length of core was compared to the
drilled length in order to assess core recovery. The sonic rig generally
achieved close to 100% core recovery in both sediments and bedrock, although
rare instances of core loss were recorded, particularly when drilling through
large boulders or heavily fractured bedrock. These instances were documented
in the geological logs.
Direct Push and Diamond Drilling
§ Both the core and auger samples were collected over the full length of the
1m sampling intervals.
§ In difficult ground conditions, the direct push samples were brought to the
surface by pulling (instead of rotating) the drill string to reduce material
loss and contamination. The drill string was also pulled and cleaned at the
end of each run. In areas of excessive moisture or oversize, the hole was
either re-located, re-drilled by diamond core or abandoned. Each interval was
weighed.
§ For the core samples, the likelihood of core loss was reduced by slow
drilling advances, short run lengths, and minimal use of drilling fluids.
§ Core recovery was closely monitored and measured during the logging
process, with a dataset average of 98% for both sediment and bedrock samples.
Both methods were assessed by comparing the data from twinned core-auger hole
pairs, as well as by periodic weighing of the entire sample.
§ No evidence of any relationships between sample recovery and grade has been
observed.
Logging § Whether core and chip samples have been geologically and geotechnical § All samples were logged for grain size, degree of sorting, grain roundness
logged to a level of detail to support appropriate Mineral Resource and colour. Bedrock intercepts were logged with respect to depth and rock
estimation, mining studies, and metallurgical studies type, noting key lithologies.
§ Whether logging is qualitative or quantitative in nature. Core (or costean, § Larger clasts were measured in order to record their size and shape. A
channel, etc.) photography visual estimate of the percentage HM was made, although this has not been used
for resource estimation.
§ The total length and percentage of the relevant intersections logged.
§ Photographs were taken at sampling locations to record the terrain at the
collar. For auger samples, the material extracted was photographed as was a
small representative amount on scaled paper for logging and the sub-sample in
the sample container. Photographs were taken of every interval of sonic core;
where necessary, photographs were taken before and after scraping back the
outer rind of fine material
§ SRK EX considers the logging to be quantitative with respect to the
description of the samples and qualitative with respect to %HM estimates.
§ For auger samples, 98% of the 298 sampled locations have adequate
sedimentological field descriptions. It is unclear why information was not
recorded for the remainder (6 locations)
§ In total, 1,011.10 m of sonic core has been drilled, all of which has
geological logging
§ All drill samples were transported to the sample storage facility on-site,
where they were geologically logged, photographed, weighed, bagged and packed
into core boxes for transport to the laboratory. The entire length of
recovered core was logged, recording lithology, sedimentological character,
mineralisation and mineralogy.
§ The geological logging data are primarily qualitative. The 2022 drill
campaign was accompanied by a detailed exploration report containing
photographs and video recordings of all processes. The total length of each 1m
sample was 570m and 100% of all intersections were logged. including bedrock
intercepts, to provide a comprehensive understanding of both sediment and
bedrock geology.
Sub- sampling Techniques and Sample Preparation § If core, whether cut or sawn and whether quarter, half or all core taken § Sonic core sub-sampling: Whilst sediment samples were split longitudinally
and one half submitted for analysis, whole core bedrock was taken and used for
§ If non-core, whether riffled, tube sampled, rotary split, etc. and whether laboratory submission. This was because there was not the equipment on site to
sampled wet or dry split hard rock samples representatively.
§ For all sample types, the nature, quality and appropriateness of the sample § Direct push and diamond drill core sub-sampling: All wet direct push and
preparation technique diamond core samples were cut in 1m sections to fit the respective drill hole
core box. Full core samples were dispatched in the core boxes, with the
§ Quality control procedures adopted for all sub- sampling stages to exception of 16 Field Duplicate samples that were selectively split (by
maximises representivity of samples halving the sample with a chisel). No other sample splitting was undertaken
on- site. Roughly 10 cm in length whole core bedrock samples were randomly
§ Measures were taken to ensure that the sampling is representative of the selected from the bedrock length for laboratory assay.
in- situ material collected, including for instance results for field
duplicate/ second-half sampling Sample Preparation
§ Whether sample sizes are appropriate to the grain size of the material § Hard rock sample preparation was performed by the following laboratories:
being sampled.
§ 2018: Geolab, Nuuk, Greenland and Met-Solve, Vancouver, Canada
§ 2024: ALS Finland Oy, Outokumpu, Finland
§ Whole core samples of 2018 sonic derived bedrock were sent to GeoLAB
Greenland ApS for sample preparation. Samples were dried, crushed to 70%
passing 2mm, split to a 250g sub-sample, and pulverized to 85% passing 75μm.
§ Direct push and diamond drill core samples were sent to ALS Finland Oy for
sample preparation. The process involved fine crushing to 70% passing <2mm,
splitting by Boyd Rotary Splitter, and pulverizing 1000g to 85% passing
<75µm. Quality control tests were conducted for both the crushing and
pulverizing stages to ensure consistency and accuracy.
Quality of Assay Data and Laboratory Tests § The nature, quality, and appropriateness of the assaying and laboratory
procedures used and whether the technique is considered partial or total
§ The XRF analysis for TiO₂ and other oxides in the 2018 sonic core and
§ For geophysical tools, spectrometers, handheld XRF instruments, etc., the excavator trench bedrock samples was conducted by MS Analytical at its
parameters used in determining the analysis including instrument make and facilities in Vancouver, British Columbia, using the WRX-310 method. This
model, reading times, calibrations factors applied and their derivation, etc. method employed lithium borate fusion followed by X-ray fluorescence (XRF)
detection, which is an industry-standard technique for multi-element analysis
§ Nature of quality control procedures adopted (e.g. standards, blanks, of rock samples.
duplicates, external laboratory checks) and whether acceptable levels of
accuracy (i.e. lack of bias) and precision have been established. • In addition to TiO₂, the assay suite included the following
elements: Al₂O₃, BaO, CaO, Cr₂O₃, Fe₂O₃, K₂O, MgO, MnO, Na₂O,
P₂O₅, and SO₃, to assess the complete geochemical profile of the bedrock
samples.
• Quality control measures included the insertion of blanks, duplicates,
and certified reference materials (CRMs) such as STD SY-4, STD CaCO₃, and
STD OREAS 465. These QA samples were used to monitor the accuracy and
precision of the laboratory analysis.
• The results from duplicates (such as DUP 18-ET012-3) and other QA
samples confirm that the assays were within industry-accepted limits,
providing confidence in the reported assay data.
§ The 2022 direct push and diamond core bedrock samples were assayed in 2024
and sent to ALS Finland Oy labs in Outokumpu, Finland, for sample preparation
and transported to ALS Loughrea Geochemistry, Dublin, Ireland for assay.
• The analysis of the direct push and diamond core bedrock samples was
conducted by ALS Loughrea Geochemistry at its Dublin, Ireland laboratory. The
laboratory employed industry-standard techniques to ensure reliable and
accurate data.
• The assay work for TiO₂ was carried out using fusion X-ray
fluorescence (XRF) analysis, method ME-XRF15b, which utilized lithium borate
fusion as a fluxing agent. The analytical suite targeted TiO₂ concentrations
specifically.
• Additionally, 19 of the 74 samples were analysed for specific gravity
using method OA-GRA08 to provide more robust density data for modelling and
resource estimation.
• Laboratory performance was monitored using QA samples, including field
duplicates (e.g., MWRS22059 -DUP, MWRS22087 -DUP, HR22051-DUP, and MWRS22115
-DUP), blanks, and certified reference materials (CRM) such as AMIS0346. These
internal quality control measures were supplemented by ALS's internal
controls, ensuring accuracy and precision across all sample batches.
• Control samples, such as blanks (PALLO, BLANK), and certified
reference materials (CCU-1d, RENGAS, MP-1b), were inserted at regular
intervals to monitor for contamination, accuracy, and consistency. These
checks confirmed that assay precision and reliability were within
industry-accepted limits for this project.
Verification of Sampling and Assaying § The verification of significant intersections by either independent or § The project was visited by Mr Bill Kellaway of SRK EX during the 2016 and
alternative company personnel 2018 exploration programmes. Mr Jon Russill of SRK EX visited during the 2017
and 2018 exploration programmes. Both are independent of 80 Mile. They
§ The use of twinned holes observed the sampling methods and in-situ mineralisation first-hand.
§ Documentation of primary data, data entry procedures, data verification, § Twinning has been used extensively on the project, using auger sampling,
data storage (physical and electronic) protocols pitting and sonic drilling at the same locations so that results for these
different methods can be compared.
§ Discuss any adjustment to assay data.
§ Sample results have been compiled into a database by 80 Mile and sent to
SRK EX. SRK EX has audited this database and errors or inconsistencies have
been satisfactorily corrected.
§ The verification of the bedrock samples collected during the 2018 and 2022
drilling campaigns was rigorously performed. The bedrock samples from both
years were sent to independent laboratories for preparation and assay.
§ The twinned auger and diamond core hole pairs, which were typically
collared no more than 5m apart, generally show good grade and thickness
correlation.
§ The primary datasets are recorded and stored electronically. No adjustments
to the assay data were applied.
Location of Data Points § Accuracy and quality of surveys used to locate drillholes (collar and § All auger collars were located using a Garmin GPSMAP 64S GLONASS handheld
down-hole surveys), trenches, mine workings and other locations used in GPS unit prior to sampling. After sampling, the collars were surveyed using a
Mineral Resource estimation RTK DGPS to give decimetre precision in three dimensions. Where DGPS data are
not available, handheld GPS positions have been used. SRK EX considers that
§ Specification of the grid system used this data remains sufficient.
§ Quality and adequacy of topographic control. § All data were recorded to WGS84, UTM Zone 19 N, and the EGM96-geoid.
§ 2022 drill collars were surveyed after drilling using Spectra Precision
ProMark 120 differential global positioning system ("DGPS") and reported to an
accuracy of 30 cm. The base station for the DGPS system was calibrated to
permanent ground control points surveyed to an accuracy of 50 mm relative to
the International GNSS Service stations.
§ Because all holes were vertical and shallow, downhole surveying was not
considered necessary.
§ Outcrop sample locations were recorded using handheld GPS which is
sufficient for the purposes of the Exploration Target.
Data Spacing and Distribution § Data spacing for reporting of Exploration Results § The deposit has been drilled historically using auger and sonic drilling
methods, with a nominal grid of 150 x 150 meters for auger and 700 x 100
§ Whether the data spacing and distribution is sufficient to establish the meters for sonic established.
degree of geological and grade continuity appropriate for the Mineral Resource
and Ore Reserve estimation procedure(s) and classifications applied § The deposit was drilled at two spacings during 2022, namely 440 x 100 meter
and 100 x 50-meter drill centres. The former wide-spaced drill pattern was
§ Whether sample compositing has been applied. designed to improve the confidence in orebody structure (in particular bedrock
depth) and grade distribution, whilst the latter provided further
understanding of geological variability. All drilling was conducted on a
regular grid oriented at approximately 125 degrees to the UTM grid and all
holes are vertical. This drill orientation was designed to complement the
anisotropy and mineralisation trends identified in historical drill campaigns.
§ Drill spacing is considered to be sufficient to demonstrate a level of
confidence in lithological and grade continuity that is commensurate with
defining an Exploration Target.
§
§ Outcrop grab sampling was on an ad hoc basis and has not yet been
undertaken in a systematic or fully representative manner (e.g. channel
sampling)
Orientation of Data in Relation to Geological Structure § Whether the orientation of sampling achieves unbiased sampling of possible §
structures and the extent to which this is known, considering the deposit type
§ All drill holes are vertical and located on a regular grid, which means
§ If the relationship between the drilling orientation and the orientation of that the sampling is orthogonal to the sub- horizontal or shallow-dipping
key mineralised structures is considered to have introduced a sampling bias, mineralised sills.
this should be assessed and reported if material.
§ No orientation-based sampling biases have been identified, or are expected
for this style of mineralisation.
Sample Security § The measures taken to ensure sample security. § Auger samples were placed into sealed plastic buckets at the sampling
location. These buckets cannot be reopened without breaking a seal and are
therefore tamper-evident. Sample numbers were included on tickets that were
placed inside the buckets as well as written on the outside of the bucket so
that sample numbers could be cross-checked.
§ Sonic core samples were placed into strong plastic bags with a sample
number tag inside and the sample number written on the outside. The bags were
sealed with cable ties.
§ At all stages, a list of sample numbers accompanied the shipments so that
they could be checked off by each recipient. As far as SRK EX is aware, no
samples were delayed or misplaced between shipping locations.
§ The chain of custody of direct push and diamond core samples was managed
on-site by Arethuse Geology and at the laboratory by NAGROM.
§ All samples were immediately removed after drilling to the on-site sample
storage facility for logging. After logging, photography and weighing samples
were bagged and packed into core boxes for transport. The core boxes were
labelled, electronically captured and sealed with packing tape in three
places. All core boxes were packed into the shipping containers, with the
position of each core box in the containers mapped and recorded.
§ Upon completion of the 2022 drill campaign, the sample containers were
sealed before shipping to the sample preparation facility in Denmark.
Audits or Reviews § The results of any audits or reviews of sampling techniques and data. § Apart from SRK EX review of the exploration methods and results in the
course of their reporting the Exploration Target, and various academic
studies, SRK EX is not aware of other audits or reviews that may have been
conducted with respect to potential hard rock ilmenite Mineral Resources.
§
JORC Code, Table 1: Section 2: Reporting of Exploration Results
Criteria JORC Code Explanation Commentary
Mineral Tenement and Land Tenure Status § Type, reference name/ number, location and ownership including agreements § Dundas currently owns one Exploitation and two Exploration licences in the
or material issues with third parties such as joint ventures, partnerships, project area.
overriding royalties, native title interests, historical sites, wilderness or
national park and environmental settings. § Exploration Licence MEL 2015-08, granted in June 2021 as addendum number 5
on renewal and valid until 31 December 2026 (five-years, with option to renew
§ The security of the tenure held at the time of reporting along with any for successive two- year periods up a total of nineteen years). The licence
known impediments to obtaining a licence to operate in the area. covers an area of 86 km(2) and grants exclusive exploration rights for the
offshore areas.
§ Exploration Licence MEL 2019-114, granted in August 2019 and valid until 31
December 2025 (five-years). The licence covers an area of 19 km(2) and grants
exclusive exploration rights for the onshore areas.
§ Exploitation Licence MIN 2021-08, granted in December 2020 and valid until
December 2050 (thirty-years, with option to extend the licence for an
additional period of no more than twenty years). The licence covers an area of
64 km(2) and grants the exclusive right to exploit (only) Heavy Minerals.
Exploration Done by Other Parties § Acknowledgement and appraisal of exploration by other parties. § Heavy mineral sand deposits were first identified on Steensby Land
Peninsular in 1916 and the presence of Ilmenite-rich sands were confirmed near
the current Thule Air Base site in 1950. The GGU (the former Greenland
Geological Survey) further defined the sand province through various heavy-
mineral mapping and sampling surveys up until 1978. Exploration Licences were
granted to several private companies between 1985 to 2010, with Dundas
commencing fieldwork in August-2015 under an Exploration Licence approved
earlier in the same year.
§ Dundas conducted exploration work in its licence areas from 2015 to 2024
with the support of various contractors / consultants, namely; The Geological
Survey of Denmark and Greenland ("GEUS"), Orbicon, SRK and Palaris. Fieldwork
included bathymetry surveys, grab sampling, photogrammetry, geophysical
surveys (ground penetrating radar), trench / bulk sampling and various drill
hole sampling campaigns (vibracore, auger, sonic and core).
Geology § Deposit type, geological setting, and style of mineralization. § The regional geology comprises a Precambrian gneiss-supracrustal complex
that is unconformably overlain by the mid- to late-Proterozoic Thule
Supergroup, a thick sedimentary and volcanic succession. The Thule Supergroup
is cut by two series of basaltic dykes and sills: the Melville Bugt Dyke Swarm
("MBDS", 1,200 - 1,000 Ma) and the Thule Dyke Swarm ("TDS", 750 - 650 Ma).
§ The TDS has a high titanium content, reportedly up to 6% in whole rock
analysis, and can comprise up to 50% of the total Thule Supergroup
stratigraphy in coastal areas. Sills may be over 100 m thick and dykes have
been mapped up to 150 m wide. Ilmenite in coastal sediments in the Thule Black
Sand Province is thought to have been eroded and liberated from the TDS and
subsequently concentrated as part of heavy mineral accumulations by fluvial
and marine and processes.
§ In the area of interest, the sills are mostly overlain by marine
sediments in which heavy minerals have accumulated in layers or disseminations
in beach sands. Heavy mineral sand occurrences are known along an 80 km long
stretch of coastline on the southwestern coast of Steensby Land, leading to
the area being referred to as the Thule Black Sand Province. Relative changes
in sea level have resulted in extensive development of raised beaches that
extend for up to 1.2 km inland. For the same reason, it is possible that
drowned beaches exist offshore.
Drill Hole Information § A summary of all information material to the understanding of the § Assay data from 83 drill holes and 4 excavator trenches intercepting
exploration results including a tabulation of the following information for bedrock has been used in the Exploration Target.
all material drillholes:
§ All holes were drilled vertically.
□ easting and northing of the drillhole collar
§ The following table shows bedrock intercepts in drill holes and trenches.
□ elevation or reduced level ("RL" - elevation above sea level
Hole ID Source Easting Northing From To
in metres) of the drillhole collar 2018
18-ET008-4 Excavator Trench 477815 8520032 3.40
□ dip and azimuth of the hole 18-ET009-1 Excavator Trench 477218 8520508 1.02
18-ET010-2 Excavator Trench 476992 8520082 1.90
□ downhole length and interception depth. 18-ET012-3 Excavator Trench 480017 8519345 3.00
18IS007 Sonic Core 491571 8513363 1.72 3.00
□ hole length. 18IS023 Sonic Core 493062 8511935 4.85 5.20
18IS008 Sonic Core 491640 8513467 1.50 3.00
§ If the exclusion of this information is justified on the basis that the 18IS057 Sonic Core 2.80 4.30
information is not material and this exclusion does not detract from the 18IS020 Sonic Core 492739 8512348 1.15 1.55
understanding of the report, the CP should clearly explain why this is the 18IS009 Sonic Core 491676 8513538 0.98 2.38
case. 18IS003 Sonic Core 491248 8513797 2.50 2.93
18IS120 Sonic Core 490986 8513918 1.50 3.00
18IS058 Sonic Core 490806 8514038 1.50 3.00
2022
MWRS22060 Diamond/Direct Push 479850 8519295 1.32 3.53
MWRS22061 Diamond/Direct Push 479820 8519435 5.68 7.65
MWRS22062 Diamond/Direct Push 479850 8519476 6.20 7.10
MWRS22027 Diamond/Direct Push 477816 8520034 3.50 6.15
MWRS22038 Diamond/Direct Push 478992 8519706 2.55 5.12
MWRS22046 Diamond/Direct Push 479366 8519734 13.60 17.07
MWRS22056 Diamond/Direct Push 479975 8519452 13.26 14.23
MWRS22057 Diamond/Direct Push 479924 8519422 9.92 12.96
MWRS22058 Diamond/Direct Push 479902 8519378 5.20 7.09
MWRS22059 Diamond/Direct Push 479870 8519337 1.60 3.83
MWRS22066 Diamond/Direct Push 480319 8519271 3.50 5.52
MWRS22067 Diamond/Direct Push 480283 8519230 1.70 3.45
MWRS22068 Diamond/Direct Push 480168 8519257 1.85 3.50
MWRS22069 Diamond/Direct Push 480190 8519297 2.20 3.55
MWRS22070 Diamond/Direct Push 480242 8519344 4.35 5.50
MWRS22071 Diamond/Direct Push 480139 8519382 5.50 7.00
MWRS22072 Diamond/Direct Push 480125 8519344 2.90 4.10
MWRS22073 Diamond/Direct Push 480094 8519289 1.60 3.40
MWRS22074 Diamond/Direct Push 479985 8519320 1.75 3.62
MWRS22075 Diamond/Direct Push 479968 8519257 1.80 3.70
MWRS22076 Diamond/Direct Push 479928 8519234 1.50 3.90
MWRS22077 Diamond/Direct Push 480059 8519254 1.80 3.70
MWRS22078 Diamond/Direct Push 480040 8519220 2.35 4.00
MWRS22079 Diamond/Direct Push 480146 8519203 2.10 3.32
MWRS22080 Diamond/Direct Push 480263 8519174 2.50 4.00
MWRS22082 Diamond/Direct Push 480122 8519162 2.47 3.95
MWRS22083 Diamond/Direct Push 480066 8519137 2.00 2.70
MWRS22084 Diamond/Direct Push 480011 8519178 1.40 2.50
MWRS22085 Diamond/Direct Push 479944 8519159 2.15 2.90
MWRS22087 Diamond/Direct Push 480055 8519061 2.35 3.00
MWRS22088 Diamond/Direct Push 480364 8519127 2.52 3.32
MWRS22089 Diamond/Direct Push 480364 8519126 2.35 3.15
MWRS22091 Diamond/Direct Push 480717 8519066 2.45 3.30
MWRS22092 Diamond/Direct Push 480767 8519151 3.70 4.65
MWRS22095 Diamond/Direct Push 480566 8518805 1.50 2.40
MWRS22096 Diamond/Direct Push 480529 8518728 1.45 2.35
MWRS22097 Diamond/Direct Push 480479 8518643 1.90 3.25
MWRS22099 Diamond/Direct Push 481136 8518955 3.10 3.95
MWRS22100 Diamond/Direct Push 481067 8518857 2.40 3.20
MWRS22101 Diamond/Direct Push 481065 8518856 3.20 4.10
MWRS22102 Diamond/Direct Push 481009 8518771 2.65 3.50
MWRS22103 Diamond/Direct Push 480948 8518695 2.80 3.10
MWRS22105 Diamond/Direct Push 481377 8518709 2.35 3.05
MWRS22106 Diamond/Direct Push 481315 8518620 3.05 3.55
MWRS22107 Diamond/Direct Push 481268 8518517 2.10 3.30
MWRS22108 Diamond/Direct Push 481243 8518433 2.30 3.45
MWRS22109 Diamond/Direct Push 481817 8518626 14.30 15.30
MWRS22113 Diamond/Direct Push 481593 8518340 1.85 3.00
MWRS22114 Diamond/Direct Push 481524 8518253 2.15 2.85
MWRS22112 Diamond/Direct Push 481648 8518414 2.00 2.55
MWRS22115 Diamond/Direct Push 481475 8518276 2.50 3.45
MWRS22116 Diamond/Direct Push 481467 8518256 2.85 3.85
MWRS22123 Diamond/Direct Push 481419 8518092 1.35 2.30
MWRS22124 Diamond/Direct Push 481363 8518012 1.35 2.10
MWRS22125 Diamond/Direct Push 481149 8518347 1.55 2.35
MWRS22126 Diamond/Direct Push 481074 8518261 1.50 2.25
MWRS22127 Diamond/Direct Push 481073 8518165 1.70 2.50
MWRS22130 Diamond/Direct Push 480833 8518529 1.90 3.00
MWRS22132 Diamond/Direct Push 480649 8518276 1.85 2.50
MWRS22133 Diamond/Direct Push 480603 8518213 1.55 2.40
MWRS22134 Diamond/Direct Push 480415 8518552 2.10 2.80
MWRS22136 Diamond/Direct Push 480318 8518360 4.50 4.90
MWRS22138 Diamond/Direct Push 480248 8518945 1.30 2.00
MWRS22139 Diamond/Direct Push 480181 8518915 1.10 1.90
MWRS22140 Diamond/Direct Push 480133 8518800 1.70 2.20
MWRS22141 Diamond/Direct Push 480077 8518718 2.50 2.85
MWRS22144 Diamond/Direct Push 477703 8520585 2.50 3.70
MWRS22146 Diamond/Direct Push 477940 8520310 3.85 5.35
MWRS22147 Diamond/Direct Push 477917 8520211 3.00 4.00
MWRS22148 Diamond/Direct Push 477863 8520131 2.45 3.90
MWRS22150 Diamond/Direct Push 478675 8519910 2.20 3.70
MWRS22151 Diamond/Direct Push 478617 8519839 2.10 3.10
MWRS22152 Diamond/Direct Push 478528 8519793 1.43 2.35
MWRS22153 Diamond/Direct Push 478374 8519514 1.60 2.45
Data Aggregation Methods § In reporting Exploration Results, weighting averaging techniques, maximum § A single bedrock sample was taken from each drill hole, thus no weighting
and/ or minimum grade truncations (e.g. cutting of high-grades) and cut-off averaging or data aggregation has been done.
grades are usually material and should be stated.
§ TiO(2) grades reported from analysis of bedrock have can be used to
§ Where aggregate intercepts incorporate short lengths of high-grade results estimate ilmenite content using the following assumptions, however the grades
and longer lengths of low-grade results, the procedure used for such in the Exploration Target have been expressed as TiO(2):
aggregation should be stated and some typical examples of such aggregations
should be shown in detail. □ Ilmenite from this project typically contains 46.89% TiO(2).
§ The assumptions used for any reporting of metal equivalent values should be □ 80-90% of the TiO(2) reported in analytical results is derived
clearly stated. from ilmenite.
Relationship Between Mineralisation Widths and Intercept Lengths § These relationships are particularly important in the reporting of § The hard rock mineralisation at the Dundas Ilmenite Project is hosted
Exploration Results. within high-TiO₂ sills and dykes of the Thule Dyke Swarm. The mineralised
widths vary significantly due to the tabular morphology and lateral
If the geometry of the mineralisation with respect to the drillhole angle is discontinuity of the dolerite sills. These sills range from a few meters to
known, its nature should be reported. over 30 meters in thickness, with lateral continuity extending up to several
kilometres in some areas, as observed in the Moriusaq and Iterlak regions.
§ If it is not known and only the downhole lengths are reported, there should
be a clear statement to this effect (e.g. 'downhole length, true width not § Insufficient drilling has been done to confirm the true thickness of the
known'). sills, and thickness estimates for the Exploration Target are based on
surface-shallow observations and published research
§ The logged intercepts from sonic drilling and surface outcrop sampling
confirm the presence of significant mineralised intervals, correlating with
the mapped sills. Further work, including diamond drilling and geological
mapping, is proposed to refine the understanding of these relationships.
Diagrams § Appropriate maps and sections (with scales) and tabulations of intercepts § Appropriate maps and cross sections with scale are included in the report,
should be included for any significant discovery being reported. These should showing the areas included in the Exploration Target, including the
include, but not be limited to a plan view of drillhole collar locations and distribution of D2 dykes and S1 sills within the Thule Dyke Swarm.
appropriate sectional views.
§ The regional geological map and schematic cross section illustrate the
spatial relationship between the drilling and the geological structures,
highlighting the variability in thickness, lateral continuity of the sills,
and their position relative to 80 Mile's Licence.
§ The cross sections from GEUS show the stacked sill sections and their
depth, as well as the location of the drill holes used to inform the
Exploration Target, providing a comprehensive understanding of the sub-surface
structure in the Dundas Formation.
Balanced Reporting § Where comprehensive reporting of all Exploration Results is not § The results have been reported in a balanced manner, providing a clear
practicable, representative reporting of both low and high grades and/or representation of the range of grades found within the Exploration Target.
widths should be practiced to avoid misleading reporting of Exploration Additionally, both high- and low-grade areas are clearly illustrated in the
Results. figures produced for the Exploration Target.
Other Substantive Exploration Data § Other exploration data, if meaningful and material, should be reported § No other substantive exploration work has been incorporated into the
including (but not limited to): geological observations; geophysical survey estimation of the Exploration Target beyond the data already referenced.
results; geochemical survey results; bulk samples - size and method of
treatment; metallurgical test results; bulk density, groundwater, geotechnical
and rock characteristics; potential deleterious or contaminating substance.
Further Work § The nature and scale of planned further work (e.g. tests for lateral § The proposed work to advance from the Exploration Target to a Mineral
extensions or depth extensions or large- scale step-out drilling). Resource Estimate includes detailed mapping and sampling of exposed sills,
diamond drilling to confirm sill presence and variability, and test work to
§ Diagrams clearly highlighting the areas of possible extensions, including evaluate the production of marketable ilmenite concentrate. Hydrological and
the main geological interpretations and future drilling areas, provided this waste management studies will be reassessed, and current permits may be
information is not commercially sensitive. amended to accommodate hard rock mining activities.
Data Aggregation Methods
§ In reporting Exploration Results, weighting averaging techniques, maximum
and/ or minimum grade truncations (e.g. cutting of high-grades) and cut-off
grades are usually material and should be stated.
§ Where aggregate intercepts incorporate short lengths of high-grade results
and longer lengths of low-grade results, the procedure used for such
aggregation should be stated and some typical examples of such aggregations
should be shown in detail.
§ The assumptions used for any reporting of metal equivalent values should be
clearly stated.
§ A single bedrock sample was taken from each drill hole, thus no weighting
averaging or data aggregation has been done.
§ TiO(2) grades reported from analysis of bedrock have can be used to
estimate ilmenite content using the following assumptions, however the grades
in the Exploration Target have been expressed as TiO(2):
□ Ilmenite from this project typically contains 46.89% TiO(2).
□ 80-90% of the TiO(2) reported in analytical results is derived
from ilmenite.
Relationship Between Mineralisation Widths and Intercept Lengths
§ These relationships are particularly important in the reporting of
Exploration Results.
If the geometry of the mineralisation with respect to the drillhole angle is
known, its nature should be reported.
§ If it is not known and only the downhole lengths are reported, there should
be a clear statement to this effect (e.g. 'downhole length, true width not
known').
§ The hard rock mineralisation at the Dundas Ilmenite Project is hosted
within high-TiO₂ sills and dykes of the Thule Dyke Swarm. The mineralised
widths vary significantly due to the tabular morphology and lateral
discontinuity of the dolerite sills. These sills range from a few meters to
over 30 meters in thickness, with lateral continuity extending up to several
kilometres in some areas, as observed in the Moriusaq and Iterlak regions.
§ Insufficient drilling has been done to confirm the true thickness of the
sills, and thickness estimates for the Exploration Target are based on
surface-shallow observations and published research
§ The logged intercepts from sonic drilling and surface outcrop sampling
confirm the presence of significant mineralised intervals, correlating with
the mapped sills. Further work, including diamond drilling and geological
mapping, is proposed to refine the understanding of these relationships.
Diagrams
§ Appropriate maps and sections (with scales) and tabulations of intercepts
should be included for any significant discovery being reported. These should
include, but not be limited to a plan view of drillhole collar locations and
appropriate sectional views.
§ Appropriate maps and cross sections with scale are included in the report,
showing the areas included in the Exploration Target, including the
distribution of D2 dykes and S1 sills within the Thule Dyke Swarm.
§ The regional geological map and schematic cross section illustrate the
spatial relationship between the drilling and the geological structures,
highlighting the variability in thickness, lateral continuity of the sills,
and their position relative to 80 Mile's Licence.
§ The cross sections from GEUS show the stacked sill sections and their
depth, as well as the location of the drill holes used to inform the
Exploration Target, providing a comprehensive understanding of the sub-surface
structure in the Dundas Formation.
Balanced Reporting
§ Where comprehensive reporting of all Exploration Results is not
practicable, representative reporting of both low and high grades and/or
widths should be practiced to avoid misleading reporting of Exploration
Results.
§ The results have been reported in a balanced manner, providing a clear
representation of the range of grades found within the Exploration Target.
Additionally, both high- and low-grade areas are clearly illustrated in the
figures produced for the Exploration Target.
Other Substantive Exploration Data
§ Other exploration data, if meaningful and material, should be reported
including (but not limited to): geological observations; geophysical survey
results; geochemical survey results; bulk samples - size and method of
treatment; metallurgical test results; bulk density, groundwater, geotechnical
and rock characteristics; potential deleterious or contaminating substance.
§ No other substantive exploration work has been incorporated into the
estimation of the Exploration Target beyond the data already referenced.
Further Work
§ The nature and scale of planned further work (e.g. tests for lateral
extensions or depth extensions or large- scale step-out drilling).
§ Diagrams clearly highlighting the areas of possible extensions, including
the main geological interpretations and future drilling areas, provided this
information is not commercially sensitive.
§ The proposed work to advance from the Exploration Target to a Mineral
Resource Estimate includes detailed mapping and sampling of exposed sills,
diamond drilling to confirm sill presence and variability, and test work to
evaluate the production of marketable ilmenite concentrate. Hydrological and
waste management studies will be reassessed, and current permits may be
amended to accommodate hard rock mining activities.
About 80 Mile Plc:
80 Mile Plc, listed on the London AIM market, Frankfurt Stock Exchange, and
the U.S. Pink Market, is an exploration and development company focused on
high-grade critical metals in Tier 1 jurisdictions. With a diversified
portfolio in Greenland and Finland, 80 Mile's strategy is centred on
advancing key projects while creating value through partnerships and strategic
acquisitions.
The Disko-Nuussuaq nickel-copper-cobalt-PGE project in Greenland is a
primary focus for 80 Mile, developed in partnership with KoBold Metals. 80
Mile, through its wholly owned subsidiary Disko Exploration Ltd., has a
definitive Joint Venture Agreement with KoBold Metals to guide and fund
exploration efforts. The JV has completed intensive analysis and
interpretation of the extensive geochemical, geophysical, and geological data
collected during the previous exploration campaigns. Leveraging KoBold's
proprietary artificial intelligence and machine learning platforms, this
comprehensive analysis has resulted in the identification of seven initial
priority targets within the project area. These seven priority targets exhibit
spatial characteristics indicative of potential deposits on a scale comparable
to renowned mining operations such as Norilsk, Voisey's Bay, and Jinchuan. The
JV is now planning a focused ground-loop electromagnetic survey to refine and
prioritize each locality appropriately.
In Finland, 80 Mile currently holds three large scale multi-metal projects
through its wholly owned subsidiary FinnAust Mining Finland Oy. 80
Mile's Finland portfolio includes the Outokumpu project, where the discovery
of industrial gases like helium and hydrogen adds significant economic
potential to the already prospective copper-nickel-cobalt-zinc-gold-silver
targets. 80 Mile is conducting further exploration to fully assess these
resources.
80 Mile's recent acquisition of White Flame Energy expands its portfolio into
the energy sector, adding large-scale licenses for industrial gas, natural
gas, and liquid hydrocarbons in East Greenland. Approved by shareholders
in July 2024, this acquisition diversifies the Company's assets and aligns
with its strategy to contribute to sustainable energy solutions, while also
exploring conventional energy resources.
The Dundas Ilmenite Project, 80 Mile's most advanced asset in
northwest Greenland, is fully permitted and progressing towards near-term
production. With a JORC-compliant Mineral Resource of 117 Mt at 6.1%
ilmenite and an offshore Exploration Target of up to 530 Mt, Dundas is poised
to become a major supplier of high-quality ilmenite. Recent discoveries of
hard rock titanium mineralization, with bedrock samples showing nearly double
the ilmenite content of previous estimates, further enhance the project's
world-class potential. 80 Mile owns 100% of the Dundas Ilmenite
Project under its subsidiary Dundas Titanium A/S in Greenland.
The Thule Copper Project is a significant component of 80 Mile's portfolio in
northwest Greenland, focused on exploring and developing high-grade copper
deposits within the Thule Basin in northwest Greenland. Leveraging existing
infrastructure and exploration credits, the project is strategically
positioned in an underexplored region with substantial mineral potential. 80
Mile's established basecamp at Moriusaq will support cost-effective
exploration, aligning with the Company's broader strategy to secure
high-quality copper and industrial gas projects.
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. END DRLEAFNAASKLEFARecent news on 80 Mile
See all newsREG - 80 Mile PLC - Agreement reached to drill Jameson Basin
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AnnouncementREG - 80 Mile PLC - Operational Update on Greenswitch Ferrandina Plant
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