High Grade Results Confirm Key Mineral System Model
Released
Released
Announcement PDF
ASX Release
23rd July 2024
HIGH GRADE GOLD RESULTS CONFIRM KEY MINERAL
SYSTEM MODEL AT RUSHWORTH GOLDFIELD
Dart Mining NL (ASX:DTM) (“Dart Mining” or “the Company”) has received initial results from the
Phase 2 diamond drilling within the company’s 100% owned Rushworth Gold tenement package.
The first results from the Phase 2 diamond drilling program at Star of the West and Henry Horne
prospects have been received, with 799m of the planned 1,630m of diamond drilling has been
completed to date. Results of additional sampling of GHDD002, following detailed project
interpretation of the Growlers Hill Phase 1 program, have also been received.
Drilling has confirmed the Company’s Mineral Systems Model of the Rushworth Goldfield, with
sulphide mineralisation presenting as key identifier for potential high-grade structures.
HIGHLIGHTS INCLUDE:
•
•
•
SWDD004 intersected several zones of sulphide mineralisation surrounding large structures
o 0.24m @ 8.8g/t Au, from 56.2m downhole, intersection from within a broad zone
of sulphide mineralisation returning 7.1m @ 0.75g/t Au from 50.8m.
o 3.6m @ 0.44g/t Au, from 161.8m, of sulphide mineralisation including pyrite, cubic
pyrrhotite and acicular arsenopyrite which includes two higher grade sections of
0.2m @ 2.87g/t Au and 0.3m @ 1.45g/t Au
GHDD002 additional sampling has been returned, post project interpretation
o 0.55m @ 7.48g/t Au from 23.1m downhole.
o Interpretation has highlighted potential for multiple stacked, plunging reefs
Further assay results are expected over coming weeks.
Chairman, James Chirnside commented:
“The company is extremely happy to report todays results from our ongoing exploration at
Rushworth. Receiving high grade results from reef structures within zones of gold bearing sulphide
mineralisation is a key step to refining our mineral systems model of the project. Today’s results
confirm our optimism surrounding the results from a potential stacked reef system at Growlers Hill
and add a second prospective target zone within 500m at the Star of the West prospect.
Importantly we are just getting started, with the Growlers Hill and Star of the West prospects being
the first two targets drill tested, on a long list. Drilling remains ongoing and we are very pleased at
the penetration rates and overall rate of progress.”
1|Page
DRILLING RESULTS DISCUSSION
STAR OF THE WEST
Star of the West drill holes SWDD004 to SWDD007 target the Shellback Reef structure, an East –
West orientated, steeply south dipping thrust fault that runs from the Star of the West through to
the Growlers Hill Fault, approximately 500m to the East. Rotary Air Blast (RAB) drill holes
completed by New Holland Mining NL and reported in their December 1993 report (Report on
Geological Investigations on ML 151, Growlers Hill, Rushworth, Central Victoria, for the period
ending December 1993) tested the region, with GRB-11 intersecting a reported 3.0m @ 11.7g/t
Au from 27m with collar locations shown relative to the companies drilling in Figure 4.
The significant intersection from SWDD004 (0.24m @ 8.8g/t Au) has been interpreted as the
northerly continuation of the intersection in GRB-11, and the historic pit mining highlighted by the
LiDAR survey to the East of the drillhole. Approximately 175m of strike exists between the middle
of the historic workings and GRB-11, with SWDD004 approximately in the middle, SWDD006 &
SWDD007 plan to test the structure further west, around the intersection of GRB-11 extending the
strike to over 200m if successful.
The intersection in SWDD004 is associated with a large zone of disseminated sulphides over 7.1m
averaging 0.75g/t Au which includes the 0.24m @ 8.8g/t au associated with a large quartz
structure and 0.42m @ 3.0g/t Au from 50.58m down hole, associated with a richly pyritic
sandstone unit with nearby quartz veining.
The presence of higher gold grade structures (SWDD004 – Star of the West) within a wide envelope
of sulphide mineralisation is a new key observation for the Rushworth project. Gold mineralisation
at Rushworth can be of a very course nature with mineralisation presenting as significantly sized
nuggets as shown in Figure 2 below, previously reported by the company (DTM ASX 5th November
2020). The low-grade gold associated with this disseminated sulphide zone in SWDD004 (7.1m @
0.75g/t Au) appears to be a key indicator of potential for higher grade internal structures.
A second zone of disseminated sulphide mineralisation was intersected in SWDD004 that returned
3.6m @ 0.44g/t Au from 161.8m, which contained two higher grade intersections of 0.3m @
2.87g.t Au and 0.3m @ 1.45g/t Au. Mineralisation in this zone was dominated by disseminated
sulphides, with pyrite, fine grained acicular arsenopyrite and cubic pyrrhotite observed. Acicular
arsenopyrite and fine grained pyrite dominate the sulphide ore bodies of the nearby Fosterville
Gold Mine.
2|Page
GROWLERS HILL
Following the project review and low grade intersection in GHD001 (0.5m @ 0.2g/t Au from 18m,
previously reported (DTM ASX 20th June 2024)) additional sampling was undertaken at the same
structural position in GHD002. These new results returned 0.50m @ 7.5g/t Au from 23.1m
downhole and indicate potential for multiple stacked sub-parallel structures to exist within the
broader reef channel at Growlers Hill. This is also supported by historic geological sketch maps of
the mine area showing a series of N-S lens like mineralised quartz structures being mined.
Geological interpretation from the drilling to date appears to indicate these stacked reefs may
plunge to the south, this may mean GHDD003 and GHDD004 have passed above the most westerly
mineralised structures.
Figure 1: Plan of Growlers Hill showing stacked plunging reefs modified from Murray, R.A.F., 1884. Rushworth Quartz Reefs.
Geological survey of Victoria.
3|Page
Figure 2: Nuggetty gold example from Rushworth – (DTM ASX 20th November 2020)
RUSHWORTH PHASE 3 DRILLING
Initial drilling has been completed at the Star of the West prospect (SWDD007 remains to be drilled,
drilling will occur post receiving results from SWDD005 & SWDD006). The company’s drill rig is in
the process of moving across to the northern line of historic mineralisation targeting the Phoenix
Reef. Phoenix Reef has been the site of significant historic mining, and modern exploration. Drilling
is aiming to test for repeating thrust fault structures at depth below the historic mining and existing
exploration. The Company has also had its tenement application (EL008542) over the Star of the
West prospect accepted, with the application now progressing through advertising and native title
negotiations. The area was formally held under a mining licence by a third party.
4|Page
RUSHWORTH STRUCTURAL ARCHITECTURE
The Rushworth goldfield is focused along a series of regional East-West orientated anticline folds
which host shallow historic gold workings along a cumulative strike length of approximately 14km
(Figure 2). The major limbs of the anticline also exhibit smaller scale parasitic folding and various
changes in bedding strike and dip. Significant North-South orientated structures crosscut and
offset East-West bedding and fold hinges along the length of the field.
The East-West orientation of the field is unusual for Victorian Goldfields, which usually trend
North-South, due to the added structural complexity of the Rushworth Region being highly
influenced by the Lachlan Orocline formation and induced North-South crustal shortening through
subduction rollback.
Mineralisation historically exploited at Rushworth concentrated on alluvial mining before focus
shifted to the hard rock source. Mineralisation is dominated by free gold located in quartz veins
hosted within sandstone and shale lithologies.
Mineralisation at Rushworth is comprised of three main structural architecture types.
1. Thrust hosted Quartz Veins. Formed during compressional events where folding has
accommodated as much crustal shortening as it can, thrust faulting then takes over,
utilising planer weakness usually associated with bedding and accommodates further
shortening. Structures progress along limbs of folds and when a hinge zone is intersected,
the fault structures break across the opposite fold limb introducing dilatational areas and
structural complexity of discordant bedding to promote the deposition of gold from the
mineralised fluid. This style of mineralisation is common across central Victoria particularly
at Fosterville, Bendigo and Ballarat fields.
2. North South Veins. Significant mineralised fault structures crosscut the East-West bedding
and thrust hosted quartz veins in a North-South orientation across the Rushworth
Goldfield. During the folding and rollback event of the Lachlan Orocline formation, NorthSouth structures would have formed to accommodate the rotation of the upper crust in the
region.
3. Saddle Reefs. Some historic workings reported exploiting “Bendigo Style” saddle Reefs
where soft shale units deform in a more ductile fashion than the surrounding sandstone
units and produce dilatational saddles in the hinge of the fold. This style of deformation
and mineralisation is particularly evident and reported in historic texts in the Nuggetty Reef
region.
Areas of significant interest for Dart Mining in the Rushworth Goldfield are areas of structural
intersections, i.e. where the Thrust Faults which strike parallel to bedding intersect the large-scale
North-South Structures. The intersection of major structures provides an increase in structural
complexity and opportunity for the further deposition of gold from mineralised fluids. The
intersection can also increase levels of mineralisation through introducing more mineralising
events.
5|Page
Figure 3: Drilling Progress Plan
6|Page
Figure 4: Plan image showing Star of the West drilling progress and historic drilling
7|Page
Figure 5: SWDD004 cross section looking West
8|Page
Figure 6: Cross Section looking North showing drillhole GHDD002 with previously reported intercepts
9|Page
Figure 7: Cross Section looking North showing previously reported GHDD001 with updated geological interpretation
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Figure 8: Rushworth Tenement location plan
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Figure 9: Dart Tenement location plan
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Approved for release by the Board of Directors.
For more information contact:
James Chirnside
Managing Director
Dart Mining NL
jchirnside@dartmining.com.au
+61 447 447 613
Aimee Coates
Investor Relations
Dart Mining NL
acoates@dartmining.com.au
About Dart Mining
Dart Mining (ASX: DTM) has the aim of evaluating and developing several historic goldfields, as well as
substantiating a new porphyry province in Northeast Victoria. The area is prospective for precious, base,
and strategic metals. These include Lithium, Gold, Silver, Copper, Molybdenum, Zinc, Tungsten, Tin,
Tantalum, and a host of other important minerals. Dart Mining has built a strategically placed gold
exploration footprint in the Central and Northeast regions of Victoria, where historic surface and alluvial
gold mining indicates the existence of potentially significant gold endowment.
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 consents to the
inclusion in the report of the matters based on his information in the form and context in which it appears.
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 forwardlooking statements.
Additional JORC Information
Further details relating and information relating to Dart Mining’s Strategic and Technology metals
exploration programs can be found in Dart Mining’s ASX announcements available on the Company’s
Website.
13 | P a g e
APPENDIX 1
TENEMENT STATUS
All tenement applications continue to pass through the approvals process with the tenements
remaining in good standing as of the 22nd July 2024 (Table 1 – Figure 8 & Figure 9).
Table 1. TENEMENT STATUS
Name
Tenement Type
EL5315
Mitta Mitta4&5
Exploration Licence
Area (km2)
Unless
specified
148
EL006016
Rushworth4
Exploration Licence
EL006277
Empress5
Exploration Licence
EL006300
Eskdale3&5
EL006486
Mt Creek5
EL006764
EL006861
Tenement
Number
Interest
Location
100%
NE Victoria
32
100%
Central Victoria
87
100%
NE Victoria
Exploration Licence
96
100%
NE Victoria
Exploration Licence
116
100%
NE Victoria
Cravensville
Exploration Licence
170
100%
NE Victoria
Buckland
Exploration Licence
414
100%
NE Victoria
EL007007
Union
Exploration Licence
3
100%
Central Victoria
EL006994
Wangara
Exploration Licence
190
100%
Central Victoria
EL007008
Buckland West
Exploration Licence
344
100%
NE Victoria
EL007099
Sandy Creek5
Exploration Licence
437
100%
NE Victoria
EL006865
Dart
Exploration Licence)
567
100%
NE Victoria
EL006866
Cudgewa
Exploration Licence
508
100%
NE Victoria
EL007170
Berringama
Exploration Licence
27
100%
NE Victoria
EL007430
Buchan
EL (Application)
546
100%
Gippsland
EL007435
Goonerah
EL (Application)
587
100%
Gippsland
EL008161
Colbinannin
EL (Application)
458
100%
Central Victoria
EL008542
Star of the West
EL (Application)
2
100%
Central Victoria
EL007425
Deddick
Exploration Licence
341
100%
Gippsland
EL007428
Boebuck
Exploration Licence
355
100%
NE Victoria
EL007426
Walwa
Exploration Licence
499
100%
NE Victoria
EL007754
Tallandoon5
Exploration Licence
88
100%
NE Victoria
RL006615
Fairley’s2
Retention License
340 Ha
100%
NE Victoria
RL006616
Unicorn1&2
Retention License
23,243 Ha
100%
NE Victoria
EL9476
Woomargama
Exploration Licence
85
100%
New South Wales
EL9516
Brewarrina
Exploration Licence
185
100%
New South Wales
All tenements remain in good standing as of 22 July 2024.
NOTE 1: Unicorn Project area subject to a 2% NSR Royalty Agreement with Osisko Gold Royalties Ltd dated 29
April 2013.
NOTE 2: Areas subject to a 1.5% Founders NSR Royalty Agreement.
NOTE 3: Areas are subject to a 1.0% NSR Royalty Agreement with Minvest Corporation Pty Ltd (See DTM ASX
Release 1 June 2016).
NOTE 4: Areas are subject to a 0.75% Net Smelter Royalty on gold production, payable to Bruce William
McLennan.
NOTE 5: Tenements subject to conditions noted in the SQM earn-in agreement (Dart Mining ASX December 2022
SQM Earn-In)
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APPENDIX 2
Table 1: Phase 2 Drilling Collars
Hole ID
Inclination
Azimuth
(Magnetic)
Achieved Hole
Depth (m)
Surveyed
Easting
Surveyed
Northing
Surveyed
Elevation_m
(RL)
GHDD002
SWDD001
SWDD002
SWDD003
SWDD004
SWDD005
SWDD006
SWDD007
HHDD001
-70.4
-60.2
-60.1
-59
-60.8
-59.9
-60.4
-60
-60.9
91.1
45
17.2
102.3
317.6
296.7
326.3
300
162.3
102.5
60.7
61.2
61.1
202.9
176.7
149.7
170.0
200.0
321996.9
320459.8
320458.3
320459.7
321673.0
321673.7
5948605.0
5948605.0
5948417.9
5948697.9
5948761.9
5948761.4
5948758.9
5948653.4
5948653.0
321590.0
321590.0
320000.4
195.2
154.0
154.1
154.2
172.7
172.8
174.0
174.0
164.0
*Grey highlights planned details
Table 2: Phase 2 Drilling Significant Intercepts
Hole ID
GHDD002
SWDD001
SWDD002
SWDD003
SWDD004
Inc.
Inc.
SWDD004
inc.
inc.
SWDD004
HHDD001
From
(m)
23.1
To
(m)
Length
(m)
23.7
0.6
No significant Intercept
No significant Intercept
No significant Intercept
50.6
57.7
7.1
50.6
51.0
0.4
56.2
56.4
0.2
161.8
165.3
3.6
162.1
162.4
0.3
164.8
165.1
0.3
173.9
174.7
0.8
No significant Intercept
Grade
(Au ppm)
7.48
0.75
3.03
8.82
0.44
2.87
1.45
1.68
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APPENDIX 3
JORC CODE, 2012 EDITION – TABLE 1
SECTION 1 SAMPLING TECHNIQUES AND DATA
Criteria
JORC Code Explanation
Sampling techniques
•
•
•
•
Drilling techniques
•
Drill sample recovery
•
•
•
Logging
•
Nature and quality of sampling (e.g. 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 (e.g. ‘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 (e.g. submarine nodules)
may warrant disclosure of detailed information.
Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air
blast, auger, Bangka, sonic, etc.) and details (e.g. 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.).
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 preferential loss/gain of
fine/coarse material.
Whether core and chip samples have been geologically and
geotechnically logged to a level of detail to support appropriate Mineral
Commentary
•
Diamond drilling was utilised to obtain NQ2 sized drill core which was logged in
detail at the Dart Core farm in Wodonga
• Zones of expected mineralisation, and zones showing visual prospectivity during
logging were split into a minimum 0.15m to maximum 0.5m sample intervals
• In interpreted unmineralized samples were not submitted for analysis.
• Sample intervals were whole core sampled
• Samples were submitted to Onsite Laboratories in Bendigo for Photon Assay
analysis
o Samples were crushed and pulverised to 90% passing 75 microns
o Samples wer rotary split into approximate 300gm sub samples
o Samples were passed through the Photon Assay machine for final
gold analysis.
• Certified Reference Materials OREAS 233, OREAS 235, OREAS 237, OREAS 277, and
OREAS 279 as well as CRM blank OREAS 22h were inserted a nominal 20 samples as
part of a QA/QC system.
• Whole core sampling, and the large subsample size of the Photon Assay technique
were utilised to combat the expected nuggerty nature of mineralisation at the
Rushworth Project.
• Diamond Drilling (Core) is of NQ2 (50.6mm diameter) from surface. Drill holes are
angled, and core is orientated (Reflex Tool) to allow structural interpretation
• Holes surveyed using an Trushot downhole camera, with 3m multishot survey
completed at the End of Hole
•
Drill core recovery is recorded for each drill interval recorded by the driller. The
drilled interval (recorded on core blocks) and the recovered interval (measured
during logging) are recorded in the company drill log database and recovery is
calculated as a percentage.
•
Drill core initial summary lithology logging is carried out to allow subsequent hole
planning and to track hole geology against hole plan.
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•
Sub-sampling
techniques and sample
preparation
•
•
•
•
•
•
•
Quality of assay data
and laboratory tests
•
•
•
Verification of
sampling and assaying
•
•
•
•
Location of data points
•
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 (e.g. standards, blanks,
duplicates, external laboratory checks) and whether acceptable levels of
accuracy (i.e. lack of bias) and precision have been established.
•
•
•
•
•
•
•
•
Detailed geological logging of all drill core includes recording of recovery,
weathering, lithology, alteration, mineralization and RQD.
All drill core is photographed prior to sampling. This logging is qualitative.
100% of the drilling was logged.
Samples were submitted to ALS Chemex and analysed for a suite of trace elements
using ALS Methods ME-ICP89 and ME-MS91 (a peroxide leach is considered a total
extraction technique for lithium). These techniques are appropriate and
considered a total extraction technique for key metals Rb, Nb, Sn, Nb, Ta, Cs and Li.
Samples were whole sample crushed, pulverised to P85 at 75um and assayed by
ALS methods ME-ICP89 and ME-MS91.
ALS conducted their own internal laboratory checks.
Laboratory blanks, standards are reviewed per batch to monitor accuracy and
precision.
•
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.
•
•
•
•
Geological logging is completed by experienced geologists
The laboratory supplies all assay data as an export to a CSV file. The raw data is
edited to separate all duplicates and CRM results into a QA/QC tab in the CSV file
and reviewed.
Verification of significant intersections were made by alternative company
personnel.
No independent review of assay data has been carried out.
Geological data is logged quality controlled spreadsheet and checked.
Electronic-only assay data is imported into a database from the laboratory’s
electronic data.
No holes were twinned at this early exploration stage.
Accuracy and quality of surveys used to locate drill holes (collar and down- •
hole surveys), trenches, mine workings and other locations used in Mineral
The location of drill hole collars were confirmed with a Trimble DA2 receiver and
Catalyst 0.3m Subscription set to MGA94 Grid Datum (Zone 55)
17 | P a g e
•
•
Resource estimation.
Specification of the grid system used.
Quality and adequacy of topographic control.
•
•
•
•
Sample security
•
•
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.
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.
•
The measures taken to ensure sample security.
Audits or reviews
•
The results of any audits or reviews of sampling techniques and data.
Data spacing and
distribution
Orientation of data in
relation to geological
structure
•
•
•
•
•
•
•
Accuracy is variable but is expected to be 0.3m
During the mapping and Collar pickup process with constant visual quality
assessment conducted, the receiver maintained an accuracy level <0.4m.
Elevation
Down hole, multi-shot surveys were taken at 15m then a nominal 30 m interval
where possible using a Trueshot survey tool. A 3m multi-shot survey was
conducted at end of hole.
Drill sites were restricted to existing tracks. It was not intended to establish a drill
spacing for resource estimation although these holes can be used at a later date.
Drill core sampling minimum 0.15m and maximum 0.5m with sampling to
lithological and mineralogical boundaries and is considered appropriate for the
style of mineralisation.
Drilling was restricted to existing tracks and pads. However, in all cases it was
possible to drill at a high angle to the host structures and achieve a suitable
orientation that crosscuts the expected mineralised orientation.
Drill transects were oriented perpendicular across the known trend of major
structures.
All samples submitted for analysis are placed in sealed poly-weave bags and
delivered to the laboratory by Dart Staff
An internal review of procedures, operations, sampling techniques and analytical
techniques was made by Dart Mining.
No external review of sampling or results has been undertaken at this early stage
of exploration.
18 | P a g e
SECTION 2 REPORTING OF EXPLORATION RESULTS
Criteria
Mineral tenement
and land tenure
status
JORC Code Explanation
Commentary
•
Type, reference name/number, location and ownership including agreements
or material issues with third parties such as joint ventures, partnerships,
overriding royalties, native title interests, historical sites, wilderness or
national park and environmental settings.
The security of the tenure held at the time of reporting along with any known
impediments to obtaining a licence to operate in the area.
•
•
All tenements remain in good standing as of 1st June 2024
Details of Dart Mining tenements shown in Appendix 2 and Figure 8 and Figure 9
Acknowledgment and appraisal of exploration by other parties.
•
Gold was discovered in Rushworth in August 1853, and for several years
production was from alluvial workings. This developed into reef workings by 1860.
Mining had almost completely ceased by 1914 and attempts to revitalise the
goldfield since have been met with no success.
Garratt (1985) calculated at least 97,000 oz of gold was produced from the
Rushworth Goldfield, with a further 40,000 oz from the Whroo Goldfield 6km to
the south of Rushworth. These figures are considered an absolute minimum for
production due to poor record keeping prior to the 1860’s and the number of
small, unrecorded workings in the district.
A detailed soil sampling survey of over 1200 samples were collected across a 6
km2 area by New Holland Mining N. L.
A series of 26 RAB holes were drilled across the Nuggety Hill – Specimen Hill
prospect by New Holland Mining N.L. in 1993. Several significant intersections
were identified, including 3m at 10.1 g/t, 3m at 3.16 g/t, and 3m at 3m at 2.83 g/t.
The highest grades typically occurred between 50-60m down hole, and grade
often displayed gold enrichment near the surface and approaching the water
table. Notably, drilling stopped at the water table.
In 1994 New Holland Mining N. L. drilled 909m across 14 RAB drill holes across the
Star of the West prospect, and 896m across 12 RC holes on the Nuggety prospect,
924m were drilled across 14 RC holes on the Fletchers Reef section of the Phoenix
prospect. A review and resampling of soil grids across workings and various
prospects showed little correlation between gold bearing structures and gold
grade, suggesting soil sampling is of limited utility in identifying mineralisation.
Dart Mining completed an RC drilling campaign at Phoenix Hill in 2021 and
reported results to the ASX (DART MINING ASX April 2021)
EL006016 is located in the Melbourne structural zone of the Lachlan Fold Belt in
central Victoria. The EL is underlain by metamorphosed Upper Silurian to Lowe
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