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FORTUNA METALS LTD — Regulatory Filings 2021
Nov 7, 2021
64952_rns_2021-11-07_3bd71967-0480-4f9a-805c-783f828b7498.pdf
Regulatory Filings
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ABN 96 095 684 389
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ADDRESS Level 8, 99 St Georges Terrace Perth WA 6000 PHONE WEBSITE +61 (08) 9486 4036
www.frontierresources.net.au
ASX Limited
Market Announcements Platform
8 November 2021
Reconnaissance Rock Chip Sampling Program Completed
Highlights :
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Helicopter-supported first pass reconnaissance rock chip sampling program completed
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Potential discovery of Rare Earth Elements (REE) mineralised ironstone exhibiting botryoidal goethite, which could represent a weathered gossan of a primary Yangibana style ferrocarbonatite (Figures 1 & 3)
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Samples have been sent to ALS Laboratory in Perth, with assay turnaround expected in 2-3 weeks, approximately end of November
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A detailed airborne magnetic-radiometric survey of 5,189 line kilometres will be flown over the entire tenement area, due to commence early November 2021
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Gascoyne Projects staked prior to regional land rush and recent discoveries by Dreadnought Resources of 12 high-grade REE prospects 15km southwest of Yangibana¹
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Large land position with very limited historical exploration covering 230km² of prospective Proterozoic Durlacher Supersuite lithology, host to the adjacent world-class Yangibana Deposit 27.42Mt @ 0.97% TREO², exploring for light rare-earth oxides of Neodymium (Nd2O3) and Praseodymium (Pr6O11) critical to the production of permanent magnets with demand set to increase 5x by 2030³
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Favourable structures identified to intersect project area, include the major Bald Hill Lineament which has a key influence on REE mineralisation at Yangibana
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Ongoing desktop review and compilation of historical datasets to identify targets and assist in future exploration programs
Frontier Resources Ltd (ASX: FNT) ( Frontier or the Company ) is pleased to announce a reconnaissance rock chip sampling program and geological mapping has been completed over two exploration licence applications in the Gascoyne Region of Western Australia that are considered to be prospective for REE’s ( Gascoyne Project ).
Mr Brian Thomas, Non-Executive Director commented “The early visual identification of a potential Yangibana style ironstone outcropping at the Gascoyne Project is a very exciting development. We are continuing our desktop review and compilation of historical datasets which are also providing further encouragement that our tenure is prospective for the discovery of REE mineralisation,
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adjacent to the world class Yangibana mine. The Board looks forward to progressing the Company’s existing projects and the growing REE portfolio, exploring for critical metals that can help the world reach targets of being net zero carbon by 2050.”
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Figure 1. Potential REE bearing ironstone outcrop identified during Heli-supported rock-chip sampling, analogous to the Yangibana style ferro-carbonatites.
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Figure 2. Typical outcrops of Yangibana style ironstones from Pirajno and Gonzalez-Alverez, 2013.
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Figure 3. Rock chip sample GPR010 exhibiting botryoidal banding of potential Mn oxides and hydrous Fe oxides, such as goethite (>80% total rock mass, based on initial visual inspection) which are common features of Yangibana style ironstones. Note for scale, Calico sample bag is 27cm wide.
Gascoyne Rare Earth Element Project – Background
The Gascoyne REE Project adjoins the world-class Yangibana Deposit (ASX.HAS ~A$460 million market capitalisation) in the Gascoyne Region of Western Australia, set to be the next REE producer outside of China by 2023. The project area is also proximal to recent discoveries made by Dreadnought Resources at their Mangaroon Project located ~15kms southwest of the Yangibana REE Resource ¹ (ASX.DRE ~A$104 million market capitalisation).
The REE-bearing Yangibana ironstones within the Durlacher Supersuite lithology were first targeted by prospectors in 1972 as base metal bearing gossans however, the REE potential of the ironstones wasn't assessed until 1985 and remained underexplored until Hastings Technology Metals (ASX.HAS) acquired the project in 2011. Hastings has since delineated a world-class JORC 2012 Mineral Resource ² of 27.42Mt @ 0.97% TREO with 0.33% Nd2O3+Pr6O11 and a ratio of 52% Nd Pr:TREO making it one of the highest value REE projects for ore value per kg.
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Figure 4. Location Map of the Gascoyne and Koolya Projects in Western Australia.
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Figure 5. Location Map of the Edmund and Lyons tenements which make up the Gascoyne Project in Western Australia.
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Despite the region’s prospectivity for REE's, very limited exploration has been undertaken at the Gascoyne Project, in part potentially due to shallow alluvial cover which has led to the area being overlooked historically however, the southeastern Lyons tenement E09/2515 has areas of outcrop, where the historic copper prospect Tabletop Well ⁴ occurs.
With the use of modern exploration techniques and a renewed focus on REE's, there is an exciting opportunity for the discovery of economic REE mineralisation. A detailed airborne magneticradiometric survey consisting of 5,189 line kilometres will be flown over the entire tenement area, due to commence early November 2021. The data gathered from this survey will assist with target definition within the prospective Durlacher Supersuite across the entire project area.
Access into the project area is very good with a combination of well-maintained gazetted and station roads located on Edmund, Gifford Creek and Wanna Pastoral Leases which will greatly assist exploration work programs.
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Figure 6. Geology and Tenement Map of the Gascoyne and Koolya Projects in Western Australia.
Gascoyne Rare Earth Element Geology – Background
The Yangibana rare earth element (REE) district consists of multiple mineral deposits/prospects hosted within the Mesoproterozoic Gifford Creek Carbonatite Complex (GCCC), Western Australia, which comprises a range of rock types including calcite carbonatite, dolomite carbonatite, ankerite–siderite carbonatite, magnetite–biotite dykes, silica-rich alkaline veins, fenite, glimmerites and what have historically been called “ironstones”. The dykes/sills were emplaced during a period of extension and/or transtension, likely utilising existing structures.
The GCCC sits adjacent to the Lyons River Fault, which has been determined via seismic reflection surveys to extend down to, and offset, the Mohorovičić Discontinuity (Johnson et al. 2013). The Lyons
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River Fault is a major shear zone that sutured the Neoarchean Glenburgh Terrane with the Archean Pilbara Craton during the 2215 to 2145 Ma Ophthalmia Orogeny (Sheppard et al. 2005; Johnson et al. 2011, 2013) ⁵ , Figure 7. The Lyons River fault system was activated during tectonic events in the Gascoyne Province (Cutten et al., in press; Johnson et al., 2012) and is suggested by F. Pirajno et al. (2014), that in one of these events, at about 1050 Ma, a small pull-apart structure, possibly defined by the Lyons River Fault and the Bald Hill Lineament, was formed on the sites, where the ferrocarbonatites had been previously intruded at ~1075 Ma. This stimulated the re-activation of the carbonatite system, widening the fenitic halo in the country rocks and producing a sinuous carbonatite veins system which eventually was locally altered to the ironstone veins, Figure 8.
The ironstone dykes or “ironstones”, as they have historically been called, specifically refer to large (up to several metres wide) dyke-like structures that protrude from the landscape (Figure 2). They are mainly located subparallel to the Bald Hill Lineament and along the eastern and western flanks ⁵ of the GCCC .
The primary ore mineral at Yangibana is monazite, which is contained within ankerite–siderite carbonatite, magnetite–biotite dykes and ironstone units. The ironstones comprise boxwork-textured Fe oxides/hydroxides, quartz, chalcedony and minor monazite and subordinate rhabdophane. The ironstones do not exhibit any primary igneous textures. Most features relate to low-temperature mineral precipitation and include botryoidal banding of Mn oxides and hydrous Fe oxides, such as ⁵ goethite .
Based on petrology, geochemistry and isotopic systematics, the GCCC is considered to have formed via emplacement of evolving, mantle-derived, alkaline magma at mid to upper crustal levels (Slezak and Spandler 2020). The variation in rock types across the complex is interpreted to reflect magma evolution via fractionation (with or without liquid immiscibility), melt wall–rock reaction and hydrothermal alteration (Slezak and Spandler 2020). The REE-rich ironstones of the Yangibana District have spatial associations and similar Nd isotopic compositions to these alkaline ⁵ igneous rocks .
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Figure 7. Mantle metasomatism under the Glenburgh Terrance resulting from plate subduction during the Glenburgh Orogeny (2018– 1950 Ma). b Localised extension caused minor decompression melting at the Lyons River Fault Moho ofset, creating the alkaline melts that travel along the fault and are emplaced as the GCCC. CF Cardilya Fault, ESZ Errabiddy Shear Zone, LRF Lyons River Fault. Modifed from Johnson et al. (2011, 2013).
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Figure 8. Two-stage model for the emplacement of ferrocarbonatite sills and dykes at ~1075 Ma along Lyons River Fault (A), followed by strike–slip movements, formation of a pull-apart structure and emplacement of carbonatite-ironstone veins swarm at ~1050 Ma (B); bottom panel shows a schematic spatial distribution of the 1075 Ma ferrocarbonatites dykes and sill and the adjacent 1050 Ma Fe oxide veins swarm emplaced in a pull-apart structure formed during re-activation of the Lyons River Fault; lines A and B in this panel schematically represent the two cross-sections above.
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Proposed exploration and study activities on the Gascoyne, Koolya and Kalgoorlie Projects
The Company proposes to undertake the following exploration and study activities within 12 months following the completion of the acquisition:
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Further rock-chip, geochemical sampling, and geological mapping across the entire Gascoyne Project;
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A detailed airborne magnetic-radiometric survey of 5,189 line kilometres will be flown over the entire tenement area, due to commence early November 2021;
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Systematic drill programs of targets identified from the combination of the geophysical survey, geochemical and rock-chip sampling programs, to test the continuation at depth and along strike of any geochemical anomalism and/or geophysical targets;
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Reconnaissance wide-spaced Air Core drilling at the Koolya Project to investigate the depth, thickness, ISO brightness, mineralogy, and alumina content over the project area prior to further infill drilling programs with the aim of delineating a JORC compliant resource;
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SEM imaging and metallurgy studies will be completed on drill samples from the Koolya Project to confirm the qualitive nature of alumina content and Halloysite, if present; and
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Reconnaissance at the Kalgoorlie Project site of historic prospecting activity and an extensive geochemical sampling program is planned across the entire tenement, with Air Core drilling to follow pending positive results.
This announcement has been authorised for release by the Directors of the Company.
Alec Pismiris Non ‐ Executive Chairman
For additional information please visit our website at www.frontierresources.net.au
FRONTIER RESOURCES LTD
The information referred to in this announcement relates to the following sources:
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¹ ASX.DRE: 11 June 2021 "High-grade Rare Earth Element Ironstones outcropping at Mangaroon" b564fa17-d73.pdf (investi.com.au)
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² ASX.HAS: 5 May 2021 “Yangibana Project updated Measured and Indicated Resource tonnes up by 54%” b07ebf9d-03c.pdf (investi.com.au)
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³ Adamas Intelligence September 2020
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⁴ Minedex Site; Tabletop Well (S0023828), 16km ENE of Gifford Creek Hmsd
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⁵ Geology and ore genesis of the carbonatite-associated Yangibana REE district, Gascoyne Province, Western Australia, P. Slezak et al. (2020)
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⁶ The Gifford Creek Ferrocarbonatite Complex, Gascoyne Province, Western Australia: Associated fenitic alteration and a putative link with the ~ 1075 Ma Warakurna LIP, F. Pirajno et al. (2014)
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Competent Person’s Statement
The information in this announcement that relates to Exploration Results and other geological information has been compiled under the supervision of Mr Bill Oliver. Mr Oliver is a member of the Australian Institute of Geoscientists and the Australasian Institute of Mining and Metallurgy and is a consultant to the Company as well as a shareholder. Mr Oliver has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and the activity he is undertaking 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 ('the JORC Code')”. Mr Oliver consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
The Company confirms that it is not aware of any new information or data that materially affects the information in the original reports, and that the forma and context in which the Competent Person’s findings are presented have not been materially modified from the original reports.
JORC Code, 2012 Edition – Table 1 report template
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
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Criteria JORC Code explanation Commentary
Sampling Nature and quality of sampling (eg cut Rock Chips
techniques channels, random chips, or specific
specialised industry standard • Rock Chips were collected by Gascoyne
measurement tools appropriate to the Geological Services Geologist and submitted for
minerals under investigation, such as analysis. Rock chips are random, subject to bias and
down hole gamma sondes, or often unrepresentative for the typical widths required
handheld XRF instruments, etc). These for economic consideration. They are by nature
examples should not be taken as difficult to duplicate with any acceptable form of
limiting the broad meaning of precision or accuracy.
sampling. • Rock chips have been collected by
Include reference to measures taken to Gascoyne Geological Services to assist in
ensure sample representivity and the characterising different lithologies, alterations and
appropriate calibration of any expressions of mineralisation. In many instances,
measurement tools or systems used. several rock chips were collected from a single
location to assist with characterising and
Aspects of the determination of
understanding the different lithologies, alterations
mineralisation that are Material to the
and expressions of mineralisation present at the
Public Report.
locality.
In cases where ‘industry standard’ work • Rock chips were submitted to ALS Laboratories
has been done this would be relatively in Perth for determination of Rare Earth Oxides
simple (eg ‘reverse circulation drilling by Lithium Borate Fusion XRF (ALS Method
was used to obtain 1 m samples from ME-XRF30).
which 3 kg was pulverised to produce
a 30 g charge for fire assay’). In other
cases more explanation may be
required, such as where there is coarse
gold that has inherent sampling
problems. Unusual commodities or
mineralisation types (eg submarine
nodules) may warrant disclosure of
detailed information.
Drilling Drill type (eg core, reverse circulation, No drilling undertaken.
techniques open-hole hammer, rotary air blast,
auger, Bangka, sonic, etc) and details
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Criteria JORC Code explanation Commentary
(eg core diameter, triple or standard
tube, depth of diamond tails, face-
sampling bit or other type, whether
core is oriented and if so, by what
method, etc).
Drill sample Method of recording and assessing No drilling undertaken.
recovery core and chip sample recoveries and
results assessed.
Measures taken to maximise sample
recovery and ensure representative
nature of the samples.
Whether a relationship exists between
sample recovery and grade and
whether sample bias may have
occurred due to preferential loss/gain
of fine/coarse material.
Logging Whether core and chip samples have No drilling undertaken.
been geologically and geotechnically
logged to a level of detail to support
appropriate Mineral Resource
estimation, mining studies and
metallurgical studies.
Whether logging is qualitative or
quantitative in nature. Core (or
costean, channel, etc) photography.
The total length and percentage of the
relevant intersections logged.
Sub- If core, whether cut or sawn and Rock Chips
sampling whether quarter, half or all core taken.
techniques If non-core, whether riffled, tube Entire rock chips were submitted to the lab for
and sample sampled, rotary split, etc and whether
sample prep and analysis.
preparation sampled wet or dry.
For all sample types, the nature, quality
and appropriateness of the sample
preparation technique.
Quality control procedures adopted for
all sub-sampling stages to maximise
representivity of samples.
Measures taken to ensure that the
sampling is representative of the in situ
material collected, including for
instance results for field
duplicate/second-half sampling.
Whether sample sizes are appropriate
to the grain size of the material being
sampled.
Quality of The nature, quality and Rock Chips
assay data appropriateness of the assaying and
and laboratory procedures used and • All samples were submitted to ALS Laboratories in
whether the technique is considered
laboratory Wangara, Perth where 1-3kg rock chips samples
partial or total.
tests were crushed so that >70% of material
For geophysical tools, spectrometers,
passes through -6mm, the sample is then
handheld XRF instruments, etc, the
parameters used in determining the pulverised to >85% passing 75 micron.
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Criteria JORC Code explanation Commentary
analysis including instrument make and • A 66-gram aliquot of pulverised sample is fused
model, reading times, calibrations with 12:22 lithium borate flux containing an
factors applied and their derivation,
oxidizing agent, and poured to form a fused
etc.
disk. The resultant disk is in then analysed by
Nature of quality control procedures
adopted (eg standards, blanks, XRF spectrometry specifically for Rare Earths
duplicates, external laboratory checks) (ALS Method ME-XRF30)
and whether acceptable levels of • Lithium borate fusion is considered a total
accuracy (ie lack of bias) and precision
digest and Method ME-XRF30 is appropriate
have been established.
for REE determination.
• No standards, duplicates or blanks submitted
with rock chips.
Verification The verification of significant Rock Chips
of sampling intersections by either independent or
and alternative company personnel. • Rock chip and geological information is written
assaying The use of twinned holes. in field books and coordinates and track data
Documentation of primary data, data
saved from handheld GPSs used in the field.
entry procedures, data verification,
data storage (physical and electronic) • Gascoyne Geological Services geologist inspected
and logged all rock chips.
protocols.
Discuss any adjustment to assay data. • Field data is entered into excel spreadsheets to
be loaded into a database.
Location of Accuracy and quality of surveys used • All sample locations were recorded with a
data points to locate drill holes (collar and down- Garmin handheld GPS which has an accuracy
hole surveys), trenches, mine workings
of +/- 5m.
and other locations used in Mineral
Resource estimation. • GDA94 MGAz50.
Specification of the grid system used.
Quality and adequacy of topographic
control.
Data Data spacing for reporting of Sample spacing and distribution is not sufficient to
spacing Exploration Results. establish the degree of geological and grade
and Whether the data spacing and continuity appropriate for a Mineral Resource.
distribution distribution is sufficient to establish the
degree of geological and grade
continuity appropriate for the Mineral
Resource and Ore Reserve estimation
procedure(s) and classifications
applied.
Whether sample compositing has been
applied.
Orientation Whether the orientation of sampling At this early stage of exploration, mineralisation
of data in achieves unbiased sampling of possible thickness’s, orientation and dips are not known.
relation to structures and the extent to which this is
known, considering the deposit type.
geological
structure If the relationship between the drilling
orientation and the orientation of key
mineralised structures is considered to
have introduced a sampling bias, this
should be assessed and reported if
material.
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sample security |
The measures taken to ensure sample security. |
• All geochemical samples were collected, bagged, and sealed by Gascoyne Geological Services staff and delivered to Bennalong Transport in Carnarvon. • Samples were delivered directly to ALS Laboratories in Wangara, Perth by Bennalong Transport ex Carnarvon. |
| Audits or reviews |
The results of any audits or reviews of sampling techniques and data. |
No audits have been completed. |
Section 2 Reporting of Exploration Results
(Criteria in this section apply to all succeeding sections.)
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Criteria JORC Code explanation Commentary
Mineral Type, reference name/number, Frontier Resources Ltd entered into a conditional
tenement location and ownership including agreement to acquire all of the shares in Dalkeith
and land agreements or material issues with third Capital Pty Ltd (Dalkeith) which holds two
parties such as joint ventures, exploration licence applications in the Gascoyne
tenure status
partnerships, overriding royalties, Region of Western Australia. The acquisition of
native title interests, historical sites, Dalkeith remains subject to receipt of shareholder
wilderness or national park and approval in general meeting.
environmental settings. • The Gascoyne Project consists of 2 pending
The security of the tenure held at the Exploration Licenses (E09/2515 and E09/2516).
time of reporting along with any
• All tenements are 100% owned by Dalkeith Capital.
known impediments to obtaining a
licence to operate in the area. • The Gascoyne Project covers 2 Native Title
Determinations including the Thudgari
(WAD6212/1998)
and the Combined Thiin-Mah, Warriyangka, Tharrkari
and Jiwarli (WAD464/2016).
• The Gascoyne Project is located over the following
pastoral leases; Edmund, Gifford Creek, and Wanna.
Exploration Acknowledgment and appraisal of • Historical exploration of a sufficiently high standard
done by exploration by other parties. was carried out in the region by a few parties
other parties including:
Hurlston Pty Ltd 1986-1987: WAMEX Report A23584
Newmont 1990: WAMEX Report A32886
Newcrest 1990: WAMEX Report A36887
Desert Energy 2006-2007: WAMEX Reports A78056,
A80879
Geology Deposit type, geological setting and • The Gascoyne Project is located within the
style of mineralisation. Gascoyne Province, within the Gascoyne Province of
the greater Capricorn Orogen – the region that
records the collision of the Pilbara-Glenburgh Terrane
at 2215–2145 Ma (Ophthalmian Orogeny) and
eventual collision of Pilbara/Glenburgh and Yilgarn
at 2005–1950 Ma (Glenburgh Orogeny), the Gifford
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Creek Carbonatite Complex (GCCC) intrudes the Dulurcher Supersuite (including Yangibana and Pimbyana Granites) and the Pooranoo Metamorphics. The c.1360 Ma GCCC is composed of; • ~NW striking Lyons River Sills (calcio-, magnesio- and ferrocarbonatites) • ~NE striking fenite (alteration) veins • Yangibana Ironstones (REE ore bodies) • Magnetite-biotite dykes • Carbonatites in region are thought to have been generated from melting of the Glenburgh Orogen- fertilized mantle during reactivation of structures (e.g. Lyons River Fault) at c. 1370 Ma followed by magma ascent along the same structures. • The Gascoyne Project is prospective for Ferrocarbonatite hosted REEs. |
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| Drill hole Information |
A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: o easting and northing of the drillhole collar o elevation or RL (Reduced Level –elevation above sea level in metres) of the drill hole collar o dip and azimuth of the holeo down hole length and interceptiondepth o hole length. If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case. |
No drilling undertaken. |
| Data aggregation methods |
In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg 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 |
No drilling undertaken. |
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Criteria JORC Code explanation Commentary
of metal equivalent values should be
clearly stated.
Relationship These relationships are particularly No drilling undertaken.
between important in the reporting of
mineralisatio Exploration Results.
If the geometry of the mineralisation
n widths and
with respect to the drill hole angle is
intercept
known, its nature should be reported.
lengths If it is not known and only the down
hole lengths are reported, there should
be a clear statement to this effect (eg
‘down hole length, true width not
known’).
Diagrams Appropriate maps and sections (with • Refer to figures within this report.
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 drill hole collar locations and
appropriate sectional views.
Balanced Where comprehensive reporting of all • The accompanying document is a balanced
reporting Exploration Results is not practicable, report with a suitable cautionary note.
representative reporting of both low
and high grades and/or widths should
be practiced to avoid misleading
reporting of Exploration Results.
Other Other exploration data, if meaningful • Suitable commentary of the geology
substantive and material, should be reported encountered are given within the text of this
exploration including (but not limited to): document.
geological observations; geophysical
data
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
substances.
Further work The nature and scale of planned • Detailed airborne magnetic – radiometric surveys,
further work (eg tests for lateral surface geochemistry and mapping prior to drilling
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.
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