Triumph Drilling Reveals New Gold Mineralised Zones
Released
Released
Announcement PDF
ASX Release
3 July 2025
TRIUMPH DRILLING REVEALS NEW GOLD MINERALISED ZONES
Dart Mining NL (“Dart” or the “Company”) is pleased to announce an update on its ongoing Triumph
drilling programme. Dart has been drilling within the Inferred Mineral Resource area with the
company’s diamond drill rig to acquire important structural orientation and confirmation assay
data. The drilling has aimed to provide further support for resource classification upgrade from the
existing 150koz Inferred Resource (ASX: DTM March 2025) to include a component of Indicated
classification ounces to support further economic assessments and extraction scenarios.
This update includes assay results and mineralisation observations from the first 10 drill holes.
HIGHLIGHTS
•
•
•
•
Dart has completed 1,906m (12 holes) of diamond core drilling across New Constitution, South
Constitution, and Big Hans;
Assays have been received for the first 10 drill holes (New Constitution and South Constitution
only) with results for the last two completed drill holes outstanding with the laboratory;
Highlight significant assays include:
• TRDD001A: 10.5m @ 2.63 g/t Au + 12.21g/t Ag + 1.94% Zn from 68.6m;
▪ Including 3.1m @ 7.42 g/t Au + 25.42 g/t Ag + 6.37% Zn from 75.5m;
• TRDD003: 1.9m @ 4.36 g/t Au + 6.13 g/t Ag from 146.5m
▪ Including 0.4m @ 18.5 g/t Au + 25.6 g/t Ag;
• TRDD003: 1.95m @ 3.73 g/t Au + 0.9% Zn from 82.7m;
▪ Including 0.3m @ 22.8 g/t Au and 52.5 g/t Ag;
• TRDD002A: 1.9m @ 3.42 g/t Au + 26.21 g/t Ag from 68.8m
▪ Including 0.3m @ 18.6 g/t Au + 152 g/t Ag; and
• TRDD009: 6.0m @ 1.57 g/t Au from 116.0m;
▪ Including 0.4m @ 4.74 g/t Au from 116.0m and 0.4m @ 17.7 g/t Au + 44.9g/t
Ag from 119.5m.
In 8 of the 10 assayed drill holes, a total of 9 new mineralised zones have been interpreted
which has indicated that New Constitution and South Constitution are made up of wider zones
of discrete, stacked mineralised lodes; Dart is now focusing on drill testing structural and step
out concepts at depths up to 450m to test and understand the bigger picture potential at
Triumph.
Dart Mining NL
ABN: 84 119 904 880
Level 6, 412 Collins Street
Melbourne VIC 3000
Contact: James Chirnside
Email: jchirnside@dartmining.com.au
Mobile: +61 447 447 613
Webpage: www.dartmining.com.au
LinkedIn: Dart Mining NL
Twitter: @DartMining
1|Page
Darts Chairman, James Chirnside, commented: “The results received to date are an exciting
development for Dart. While we are currently intersecting known mineralised structures with some
surprising higher-grade results, the real impact is the new lodes that have been intercepted. These
lodes are both on the hanging wall and footwall sides of the New Constitution and South Constitution
systems and drilling confirms a strike length akin to the existing resource. Importantly, drilling is not
only confirming known resources, but also pointing to resource upgrades, due to new parallel lodes
being discovered. To that end we have commenced development of a high-quality Exploration Target
statement for Triumph. This will be completed in the next couple of months and should adequately
demonstrate the scale and significance of this exciting Intrusion Related Gold System. Given the highgrade gold ore at or near surface in several deposits, we are considering and studying various options
around open pit project development.”
A summary of the first 10 drill hole significant assay results is shown in Table 1 and the Dart drilling
to date shown in Figure 1. Drilling to date on Triumph has shown that additional stacked lodes have
been intersected adjacent to the existing MRE. Of the 10 drill holes completed with assays, at least
9 new lodes have been intersected adjacent to the known mineralisation. Each of these has above
1g/t cut-off Au intercepts, as well as anomalous silver (Ag) and arsenic (As) – note As is a strong path
finder for Au at Triumph. Cross-section interpretation of the new lodes from three holes is shown
in Figure 2. A complete set of cross section for the drill holes is included in Appendix 4. A long section
highlighting the drilling results relative to the New Constitution orebody is shown in Figure 3.
Significant intercepts that are interpreted to be new lodes are highlighted in Table 1. These new
lodes present additional targets for Dart to consider in future exploration to expand the Mineral
Resource Estimate around the existing known mineralisation. These adjacent parallel new lodes
present further open cut targets and any increase in the number of stacked lodes could have an
improved economic impact on strip ratio in a mining study scenario. Further, Dart’s observation of
base metal association with structurally complex zones (and its association with high Au) is
improving the exploration model going forward which will continue to unlock Triumph’s full
potential.
2|Page
Figure 1: Plan map showing location of reported drill hole assays compared to the existing Mineral Resource
Estimate.
3|Page
Table 1: Summary of significant intercepts of drilling results (seven holes) plus notable new lode intercepts.
Drill Hole Name
TRDD001A
including
TRDD001A
including
including
TRDD001A
including
TRDD002A
including
including
TRDD002A
including
TRDD003
TRDD003
including
TRDD004
TRDD004
TRDD004
including
TRDD005
TRDD005
TRDD006
including
TRDD006
TRDD006
including
TRDD007
TRDD007
TRDD007
including
TRDD007
including
TRDD008
TRDD009
including
including
TRDD009
including
including
TRDD009
TRDD010A
TRDD010A
including
TRDD010A
including
TRDD010A
including
TRDD010A
including
From Depth (m)
37.5
38.0
68.6
69.1
76.6
136.7
137.2
68.8
68.8
69.65
119.6
119.9
82.7
146.5
147.0
11.0
19.8
65.15
66.8
35.8
54.6
113.8
114.3
126.5
131
134.5
128.7
142.4
49.5
50.0
100.5
100.5
23.8
69.1
69.1
71.6
116
116
119.5
165.2
40.0
53.0
53.0
107.4
108.4
114.0
114.0
123.3
126.5
Thickness (m)
1.5
0.5
10.5
2.3
2.0
1.5
0.5
1.9
1.4
0.3
1.6
0.8
2.0
6.3
0.9
0.5
0.3
2.1
0.4
2.6
1.3
1.3
0.35
1.7
5.0
1.5
0.3
0.3
1.3
0.3
2.65
0.4
0.3
2.8
0.5
0.3
6.0
0.4
0.4
0.3
0.5
1.5
0.5
1.3
0.3
1
0.5
4.0
0.75
Au g/t
2.26
6.76
2.63
1.92
11.27
2.31
6.92
3.42
4.64
18.65
0.95
1.88
3.73
1.40
9.19
1.58
2.44
2.00
9.43
0.52
1.29
3.52
13.05
0.58
0.38
1.01
1.42
1.65
1.59
6.82
0.88
4.21
3.68
0.41
0.39
2.07
1.57
4.74
17.7
1.87
1.74
0.94
2.7
0.47
1.06
0.99
1.61
0.42
0.91
Ag g/t
Zn %
12.21
1.94
11.88
Notes
NEW LODE
NEW LODE
26.21
9.53
NEW LODE
NEW LODE
0.9
NEW LODE
NEW LODE
NEW LODE
NEW LODE
20.86
NEW LODE
NEW LODE
NEW LODE
NEW LODE
NEW LODE
NEW LODE
NEW LODE
NEW LODE
NEW LODE
NEW LODE
11.8
48.8
44.9
LODE EXTENTION
LODE EXTENTION
LODE EXTENTION
NEW LODE
NEW LODE
NEW LODE
NEW LODE
NEW LODE
4|Page
Figure 2: Cross section highlighting assay results > 0.1 g/t Au and new lode interpretations compared to the
existing Mineral Resource Estimate.
5|Page
Figure 3: Long Section through New Constitution showing the reported Dart drilling results relative to the known mineralisation and existing drill hole database.
6|Page
Gold mineralisation is hosted within quartz-sulphide veins and is associated with pyrite and
arsenopyrite, with gold and silver likely contained within the pyrite, with the pyrrhotite likely an
associated but not host sulphide. The veins typically show a sericite (-chlorite) alteration halo,
however this appears to be more associated with the quartz veining itself rather than sulphides.
Observations of the gold-silver-copper-lead-zinc-arsenic mineralisation within sulphidic zones is
hosted in composite intrusions of several types of dioritic and granodioritic rock. These intrusives
exhibit at least two phases of alteration, which may represent at least two different distinct phases
or a spatial association and fractionation between the phases. Alteration within and peripheral to
mineralised sulphidic veins occurs as spatially and temporally associated strong to intense phyllic
(sericite/muscovite ± pyrite-silica) alteration with predominantly narrow vein selvages. Pockets of
weak to strong potassic (biotite-K feldspar) alteration associated with weak copper mineralisation
are observed.
Figure 4 shows a zone of structurally broken core with high-grade Zn. Initial thoughts on the strong
Zn mineralisation within the structural zone point to cross cutting structures. The bulk of the core
drilled in the first holes shows relatively intact core (albeit weak near the alteration zones)
supporting a competent in-situ Resource. The drilling at New Constitution is predominately
orientated east-west to target a north-south interpretation. Although this east-west drilling is not
optimal to intercept these interpreted cross-cutting structures, there are other occurrences of
elevated Zn in the New Constitution historically drilled datasets to be reviewed and followed up
considering potential for cross cutting structures. Typically, where Zn is greater than 1%, gold is over
4 g/t. Of the 5 intercepts where Zn is > 5%, gold ranges from 18g/t to 67 g/t Au (in the database).
Figure 4 – TRDD001A core tray sample highlighting intensely faulted/structural zone and high grade Au.
Dart Mining NL
ABN: 84 119 904 880
Level 6, 412 Collins Street
Melbourne VIC 3000
Contact: James Chirnside
Email: jchirnside@dartmining.com.au
Mobile: +61 447 447 613
Webpage: www.dartmining.com.au
LinkedIn: Dart Mining NL
Twitter: @DartMining
7|Page
EXPANSION FOCUS – NORTH AND SOUTH CORRIDOR
Existing drill intercept highlights are shown on Figure 5 for the Southern Mineralised Corridor
including the Super Hans, Big Hans, New Constitution and South Constitution resource blocks.
Existing drill intercept highlights are shown on Figure 6 for the Northern Mineralised Corridor
including the Bald Hill resource block and historic Advance mine area. Both areas highlight strong
geophysical extensions which are shown in the background of Figure 5 and Figure 6 by the
chargeability (ASX: MBK Nov 2016, MBK Jan 2017) as well as historical and current drilling intercepting
high grade material. These areas will be a focus for Mineral Resource growth as Dart works through
the numerous targets at Triumph with historical and current drilling intercepting high grade
material.
Figure 5 – Existing drill intercept highlights for the Southern Mineralised Corridor including (east to west)
the Super Hans, Big Hans, New Constitution and South Constitution resource blocks with chargeability
(geophysics) maps as the background.
Figure 6 - Existing drill intercept highlights the Northern Mineralised Corridor including the Bald Hill
resource block, Bald Hill East and historic Advance mine area with chargeability (geophysics) maps as the
background.
8|Page
NEXT STEPS
At the Triumph Gold Project, Dart intends to:
•
Drill test depth potential beneath the Southern Mineralised Corridor and chargeability
anomaly to the Northwest of New Constitution.
•
Continue Diamond drilling to expand the existing resources along strike and at depth;
•
In the next quarter complete and announce a high-quality Exploration Target for the Triumph
Gold Project based upon existing drilling in areas where this drilling does not yet have the
required density to proclaim a JORC Resource.
•
Undertake regional exploration, targeting the project area, as well as testing bulk tonnage
targets including those at depth;
•
Continue to review and identify additional prospective target zones for exploration in
addition to existing resource areas; and
Continue to review and identify further advanced projects throughout Central Queensland
for potential acquisition and joint venture.
•
Approved for release by the Board of Directors.
For more information contact:
Please see our Investor Hub for further information
James Chirnside
Managing Director
Dart Mining NL
jchirnside@dartmining.com.au
+61 419 605 842
Owen Greenberger
Head of Exploration / Investor Relations
Dart Mining NL
ogreenberger@dartmining.com.au
About Dart Mining
The Triumph Gold Project is Dart’s first step into an advanced intrusion related gold system project in
Queensland. Dart will look to develop a regional presence in Queensland through advanced stage intrusion
related and epithermal gold projects. Dart Mining will continue to evaluate several historic goldfields in
Central and Northeast Victoria including the Rushworth Goldfield and the new porphyry and lithium province
in Northeast Victoria identified by Dart. The area is prospective for precious, base, and strategic metals. Dart
Mining has built a strategic and highly prospective gold exploration portfolio in Central and Northeast regions
of Victoria, where historic surface and alluvial gold mining indicates the existence of potentially large gold
endowment.
9|Page
Competent Person’s Statement
The information in this report has been prepared, compiled, and verified by Mr. Owen Greenberger (B.Sc.
Geology), a Competent Person who is a Member of the Australian Institute of Geoscientists. Mr. Greenberger
is Head of Exploration for Dart Mining. Mr. Greenberger has sufficient experience that is relevant to the style
of mineralisation and type of deposits 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. Greenberger takes responsibility for the exploration
results, and consents to the inclusion in the report of the matters based on his information in the form and
context in which it appears.
The information in this report that relates to Mineral Resources is based on information compiled and
reviewed by Mr Andrew Dawes, who is a Member of the Australasian Institute of Mining and Metallurgy and
a Member of the Australian Institute of Geoscientists. Mr Andrew Dawes is employed by AHD Resources and
consults to Dart Mining NL. Mr Andrew Dawes has sufficient experience that is relevant to the style of
mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a
Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Mineral Resources.
Mr Andrew Dawes consents to the inclusion in the report of the matters based on his information in the form
and context in which it appears.
Dart Mining confirms that it is not aware of any new information or data that materially affects the
information included in this, or referenced relevant market announcements and, in the case of estimates of
mineral resources or ore reserves, that all material assumptions and technical parameters underpinning the
estimates continue to apply and have not materially changed
Forward-Looking Statement
Certain statements contained in this document constitute forward-looking statements. Forward-looking
statements include, but are not limited to, Dart Mining’s current expectations, estimates and projections
about the industry in which Dart Mining operates, and beliefs and assumptions regarding Dart Mining’s future
performance. Such forward-looking statements are based on a number of estimates and assumptions made
by the Company and its consultants in light of experience, current conditions and expectations of future
developments which the Company believes are appropriate in the current circumstances. When used in this
document, words such as; “anticipate”, “could”, “intends”, “estimate”, “potential”, “plan”, “seeks”, “may”,
“should”, and similar expressions are forward-looking statements. Although Dart Mining believes that its
expectations presented in these forward-looking statements are reasonable, such statements are subject to
known and unknown risks, uncertainties and other factors, which may cause the actual results, achievements
and performance of the Company to be materially different from the future results and achievements
expressed or implied by such forward-looking statements. Investors are cautioned that forward-looking
information is no guarantee of future performance and accordingly, investors are cautioned not to place
undue reliance on these forward-looking statements.
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APPENDIX ONE
THE TRIUMPH GOLD PROJECT
The Triumph Gold Project (Triumph or Project) is located approximately 520km by road north of
Brisbane, Queensland, and is well serviced by the coastal port city of Gladstone 80km by road to the
north. The Project is comprised of two Exploration Permits: EPM 18486 and EPM 19343 covering an
area of 137.6 sq.km or 43 sub-blocks in total. The Company has recently applied for additional area
immediately adjacent east of the triumph project with EMP 29097.
Figure 6: Location of the Triumph Gold Project
Local Geology
The Triumph Gold Project is located in the Yarrol belt of the Wandilla Province (New England Orogen),
where late Permian to Middle Triassic leucocratic intrusives are scattered throughout Devonian and
Carboniferous sediments. Known mineralisation at Triumph is located within one of these intrusive
bodies, the Norton Tonalite.
The Norton Tonalite is dissected by numerous brittle faults and shears, as well as common minor mafic
intrusive dykes of dolerite to basaltic composition. There is a distinct magnetic low signature at the
core of the Norton Tonalite which is yet to be drill tested (ASX SHN: (ASX SHN: Robust Maiden Resource
at Triumph Gold Project (31 March 2022)).
Structure
The Norton Tonalite is sinistrally offset by 1.8km by the northwest-trending Norton Fault, which can be
traced for over 28km. Initially thought to post date mineralisation, a single drill hole has intersected
11 | P a g e
the interpreted Norton Fault which returned 1m @ 2.9g/t Au and 1m @ 2.2g/t Au (ASX MKB: Triumph
Gold Project Update Amended (25 July 2014) indicating that the fault may have been active during the
main gold mineralisation event.
On a local scale the Norton Tonalite has two distinct fracture orientations that both host gold
mineralisation. One fracture set is approximately east-west striking and the other is northwestsoutheast striking. These fracture orientations are likely to have formed contemporaneously (ASX SHN:
Robust Maiden Resource at Triumph Gold Project (31 March 2022)).
Mineralisation
Gold and silver mineralisation is hosted in quartz-sulphide veins with pyrite and arsenopyrite forming
the bulk of the sulphide. Calcite is abundant in some lodes and present in most or all of them. Veins
typically show sericite-chlorite alteration halos although this appears to be more associated with quartz
veining rather than sulphides. Mineralisation at Triumph is interpreted as an intrusion related gold
system (IRGS) (ASX SHN: Robust Maiden Resource at Triumph Gold Project (31 March 2022)).
Morrison (Intrusion-Related Gold Deposits in North Queensland, GSQ Project final meeting 7th December, 2017) stated
that there were over 130 known IRGS in Queensland with 17 of these having resources over 1 million
ounces. Sunshine have stated that Triumph is analogous to the Ravenswood IRGS gold deposit which
has an endowment in excess of 5 million ounces of gold (ASX SHN: Follow Up Drilling at Liontown (19
June 2024)).
Resource Highlights
The Project is located across the historic Norton Goldfield and has a current JORC (2012) Mineral
Resource Estimate prepared over five prospects in close proximity: Inferred gold resource of 150,091
oz made up of 2,16 million tonnes at a grade of 2.17g/t gold using a 1g/t cut-off has been declared in
2025.
More than 75% of the Triumph Inferred resource is within 100m of the surface and largely located
within 1.2km of strike within a 6km long structural corridor (ASX SHN: Follow Up Drilling at Liontown
(19 June 2024)). Dart considers that there is potential for proving up mineralisation below current
drilling and open pit depths that may result in underground mining options subject to favourable
economic studies.
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APPENDIX TWO
JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria
JORC Code explanation
Sampling
techniques
• Nature and quality of sampling (eg cut channels, random
chips, or specific specialised industry standard measurement
tools appropriate to the minerals under investigation, such as
down hole gamma sondes, or handheld XRF instruments,
etc). These examples should not be taken as limiting the
broad meaning of sampling.
• Include reference to measures taken to ensure sample
representivity and the appropriate calibration of any
measurement tools or systems used.
• Aspects of the determination of mineralisation that are
Material to the Public Report.
• In cases where ‘industry standard’ work has been done this
would be relatively simple (eg ‘reverse circulation drilling was
used to obtain 1 m samples from 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.
• Drill type (eg core, reverse circulation, open-hole hammer,
rotary air blast, auger, Bangka, sonic, etc) and details (eg core
diameter, triple or standard tube, depth of diamond tails, facesampling bit or other type, whether core is oriented and if so,
by what method, etc).
• Method of recording and assessing 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
Drilling
techniques
Drill sample
recovery
Commentary
•
•
•
•
Sampling has been made on HQ and NQ diamond drilled core.
Sampling is whole core sampling based on the geologists sub sampling
(down to 30cm) logging definition.
As it is whole core, no sub-sampling techniques were used.
Samples are prepared with PREP-31B which includes crush to 70 %
passing 2mm, riffle split off 1kg, pulverise split to better than 85%
passing 75 microns.
•
Drilling is diamond drilling either HQ or NQ core size and is triple tube
drilling. Core is oriented where possible using the Reflex ACT III tool.
•
Core is measured after each run and core recovery based on the drill
metres is recorded.
Once in the transition and fresh material, Triumph experiences limited
to no core loss with the exception of intensely broken zones where
recovery is still > 95%.
•
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Criteria
JORC Code explanation
preferential loss/gain of fine/coarse material.
Logging
Subsampling
techniques
and sample
preparation
Quality of
assay data
and
laboratory
tests
• Whether core and chip samples have 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.
• If core, whether cut or sawn and whether quarter, half or all
core taken.
• If non-core, whether riffled, tube sampled, rotary split, etc and
whether 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.
• The nature, quality and appropriateness of the assaying and
laboratory procedures used and whether the technique is
considered partial or total.
• For geophysical tools, spectrometers, handheld XRF
instruments, etc, the parameters used in determining the
analysis including instrument make and model, reading times,
calibrations factors applied and their derivation, etc.
• Nature of quality control procedures adopted (eg standards,
blanks, duplicates, external laboratory checks) and whether
acceptable levels of accuracy (ie lack of bias) and precision
have been established.
Commentary
•
•
•
•
•
•
•
•
•
•
No relationship has been observed between sample recovery and gold
grade.
The drill core has been geologically and geotechnically logged to a level
to support appropriate mineral resource estimation, mining studies and
metallurgical studies. Core is logged both qualitatively and
quantitatively. Core tray photography is both wet and dry photography.
All 2,067m have been logged so far. Sampling is discrete based on
observed mineralisation, alteration, key structural features.
Core is whole core sampling so no sub-sampling techniques in the field
are used which ensures appropriate in-situ representation.
The PREP-31B method includes crush to 70 % passing 2mm, riffle split
off 1kg, pulverise split to better than 85% passing 75 microns. The
larger 1kg riffle split is larger than the standard 250g to reduce sample
size bias.
Sampling size is suitable to represent the mineralisation intersected.
All samples were analysed at ALS Global (ALS, Brisbane).
All samples were assayed for Au using a 50g fire assay with AU-ICP22
determination as well as ME-MS61 for multi element. In the case
where key elements are over range, Ag, Pb, Zn, and Cu was completed
using OG-62. As completed with OG46, and Au completed with GRA22.
The three types of QAQC samples were used were Certified Reference
Material (CRM/Standards), Field Duplicates, and Blank material.
The Blanks consist of store-bought sand which has been shown to be
barren based on previous work. The Blanks are used to provide
information of any possible contamination or calibration issues during
the crush, pulverisation, and analytical phases. The field duplicates
utilised the spear to collect a second sample to test repeatability
(precision) of the original sample. The standards samples are used to
14 | P a g e
Criteria
JORC Code explanation
Commentary
•
•
•
Verification
of sampling
and
assaying
• The verification of significant intersections by either
independent or alternative company personnel.
• The use of twinned holes.
• Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic) protocols.
• Discuss any adjustment to assay data.
•
•
•
•
Location of
data points
Data spacing
and
distribution
• Accuracy and quality of surveys used to locate drill holes
(collar and down-hole surveys), trenches, mine workings and
other locations used in Mineral Resource estimation.
• Specification of the grid system used.
• Quality and adequacy of topographic control.
•
• Data spacing for reporting of Exploration Results.
• Whether the data spacing and 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.
•
•
•
•
test the accuracy of the analyses.
Three CRMs were OREAS standards and include: OREAS 277, OREAS
245, and OREAS 233.
QAQC samples were entered into the sample stream at a rate of 1 in
20.
Where lower detection limits were reported for assay results these
were replaced by half the lower detection limit for geological
interpretation and modelling purposes.
All core photos are reviewed by the Competent Person and also visited
site during early drilling.
No twinned holes have been undertaken.
Data from the field log sheets is entered into a digital database,
primarily an Excel spreadsheet with subsequent conversion into an SQL
database maintained by EarthSQL at the completion of the hole. The
Excel spreadsheet has been created with a series of validation criteria
in the form of pulldown menus for each data entry that restricts what
can be entered into each field and significantly reduces the error
associated with data entry.
Assay results are received from the laboratory in electronic (via email)
format onsite and sent to Sample Data importing to the EarthSQL
database. The electronic results are provided in an CSV file.
Collars are collected by Dart Geologists using a dGPS Trimble device
and is suitable for collecting collar XYZ.
All collar coordinates are in MGA94 Z56.
Downhole survey has been surveyed using Reflex survey tool.
AHD Resources was provided a 3D elevation topography or digital
terrain model (“DTM”) for the Triumph area from Dart Mining in the
form of a .msh file.
The drilling is in fill drilling of the existing Mineral Resource Estimate. As
such, the geological continuity is known and expected. Where new
lodes are intercepted, multiple drill holes confirm the new lodes along
strike. Given the close proximity to the existing MRE, the spacing is
sufficient to have confidence in the continuity.
15 | P a g e
Criteria
JORC Code explanation
Commentary
•
•
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.
• 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.
Sample
security
• The measures taken to ensure sample security.
•
Audits or
reviews
• The results of any audits or reviews of sampling techniques
and data.
•
•
No sample compositing has been applied.
Drilling is typically orientated perpendicular to the interpreted strike of
mineralization where possible.
No orientation-based sampling bias has been recognised. However, in
some cases the drilling has been sub-parallel to mineralised structures.
This has been accounted for in the geological interpretation of the
mineral resources a
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