Star of Mangaroon Extended
Released
Released
Announcement PDF
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ASX ANNOUNCEMENT 22 January 2024
Star of Mangaroon Extended – Mangaroon (100%)
HIGHLIGHTS
•
Assays from shallow RC (18 holes, 1,725m) and diamond (2 holes, (137.9m) drilling programs
around the historic Star of Mangaroon gold mine include high-grade intercepts of:
SOMDD001: 1.4m @ 87.9g/t Au from 16.0m
SOMDD002: 2.5m @ 3.3 g/t Au from 68.2m
SOMRC008: 2.0m @ 4.8 g/t Au from 68m
SOMRC007: 1.0 @ 4.0 g/t from 19m (and a 2m mining void immediately above)
•
These are in addition to previously reported results from the first 10 holes of the RC program (ASX:
11 Dec 2023) including:
SOMRC004: 9m @ 13.4 g/t Au from 9m including 2m @ 59.4g/t Au from 16m
SOMRC005: 7m @ 23.0 g/t Au from 53m including 3m @ 48.9g/t Au from 54m
SOMRC006: 8m @ 15.5 g/t Au from 89m including 3m @ 30.4g/t Au from 90m
•
Encouragingly, SOMRC018 (23m @ 0.4 from 10m) confirmed historical thick, oxide mineralisation
to the north of the Star of Mangaroon. This may represent a halo around another high-grade lode
and requires follow-up.
•
SOMRC015 (3m @ 2.9g/t Au from surface) indicates potential for additional lodes to the south
heading towards the historical working at Popeye. This area hosts rock chips of 121.2 g/t Au, 179
g/t Ag (SM7) and 30.1 g/t Au, 552 g/t Ag (RNLYD048).
•
The Star of Mangaroon is one of several historical mines within the >10km long Mangaroon Shear
Zone which has seen drilling along only ~200m of strike. Seven new prospects have already been
identified in an area with camp scale potential which has never seen systematic exploration due to
fractured, small scale ownership. There will be a strong focus on gold along the Mangaroon Shear
Zone in 2024.
Dreadnought Resources Limited (“Dreadnought”) is pleased to announce further results
from first pass drilling at the Star of Mangaroon, part of the 100% owned Mangaroon Project,
located in the Gascoyne Region of Western Australia.
Dreadnought’s Managing Director, Dean Tuck, commented:
“These results have confirmed the high-grade gold potential
around the Star of Mangaroon and along the >10km Mangaroon
Shear Zone. This comes from the now consolidated project being
systematically explored using modern techniques for the first
time. We are continuing to integrate this and other information
into our geological models along the Shear Zone. The diamond
holes in particular have provided valuable structural insights. This
and other ongoing work will establish our drill priorities for what
I am sure will be an exciting drill program commencing in March
2024.”
Figure 1: Image of visible gold SOMDD001 (~17.0-17.1m)
where the hole assayed 1.4m @ 87.9 g/t Au from 16m. Field
of view is ~8cm.
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SNAPSHOT – MANGAROON GOLD (100%)
Mangaroon Gold is 100% Owned by Dreadnought
•
Over 5,000km2 of highly prospective ground.
•
Initial focus area is a ~40km x ~20km area around the >10km long Mangaroon Shear Zone - a linkage
structure between the crustal scale Minga Bar and Edmund Faults.
•
Numerous historical workings along the Shear Zone which has remarkably only seen limited shallow drilling
along ~200m of strike at the Star of Mangaroon.
Consolidation Provides for First Ever Modern Exploration
•
All historical workings and gold occurrences were discovered by pastoralists and prospectors over
outcropping mineralisation. There has been minimal historical and modern exploration due to fractured,
small scale ownership. Large scale modern exploration is now being undertaken for the first time under
Dreadnought’s consolidated ownership.
Genuine Camp Scale Potential
•
Five historical mines developed on outcropping mineralisation and dozens of gold occurrences along highly
prospective structural corridors.
•
Majority of historical workings are contained within an ~800km2 area of Dreadnought’s consolidated land
holding.
Significant, Step-change, Growth Potential
•
Dreadnought is deploying modern geochemical and geophysical techniques to explore for mineralisation
under shallow cover.
•
Initial geochemical and geophysical surveys have generated new prospects with stronger and larger signatures
than the historical mines, including the region’s largest high-grade producer at the Star of Mangaroon.
Shallow, High-grade, Au-Ag Potential
•
•
The Star of Mangaroon contains significant shallow high grade gold hits including: (ASX: 6 June 2023, 4 September
2023, 11 December 2023):
MA10: 4m @ 26.0 g/t Au from 9m
MA17: 7m @ 14.3 g/t Au from 21m
MA23: 2m @ 29.8 g/t Au from 19m
MA43: 1m @ 53.0 g/t Au from 18m
SOMRC004: 9m @ 13.4 g/t Au from 9m
SOMRC005: 7m @ 23.0 g/t Au from 53m
SOMRC006: 8m @ 15.5 g/t Au from 89m
SOMDD001: 1.4m @ 87.9 g/t Au from 16m
Rock chip results from regional prospects and historical workings include:
MNRK0515: 74.8 g/t Au (Diamond)
TPRK05: 41.7 g/t Au (Two Peaks)
SM7: 121.2 g/t Au, 179 g/t Ag (Popeye)
RNLYD048: 30.1 g/t Au, 552 g/t Ag (Popeye)
Gold is a Long-term, Strategic, Global Asset During Uncertain Times
•
Gold is a long-term, strategic, global asset that provides a store of value in uncertain times. With banking
sector uncertainty, geopolitical tensions and a challenging economic environment, gold’s role as a safe haven
has come to the fore.
•
Demand for gold ETFs is strong as is central bank buying of physical gold.
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Star of Mangaroon & Lead Gold Mines Drill Program
The Star of Mangaroon was discovered in 1956 and, until recently, has been the largest gold producer in the
Gascoyne. Between 1960 and 1983 the mine produced 7,464 oz at an average grade of 34.8g/t Au1. Most of the gold
production came from underground with the lowest extraction level ~90m below surface.
The Star of Mangaroon has received little exploration despite drilling undertaken in the 1990s which produced
significant results including (ASX: 6 June 2023, 4 September 2023):
• MA10: 4m @ 26.0 g/t Au from 9m
• MA17: 7m @ 14.3 g/t Au from 21m
• MA23: 2m @ 29.8 g/t Au from 19m
• MA43: 1m @ 53.0 g/t Au from 18m
• SMC07: 4m @ 18.7 g/t Au from 18m
• SMC09: 4m @ 16.4 g/t Au from 14m
The majority of historical drilling is within 50m of surface. Only one hole has been drilled >100m which returned 4m
@ 3.76 g/t Au from 176m (STMRC005) and highlights the potential at depth.
A program of 18 RC holes (1,725m) and 2 diamond holes (137.9m) was recently drilled to confirm and extend
existing mineralisation along strike and at depth. Significant results from the program include:
SOMRC004: 9m @ 13.4 g/t Au from 9m including 2m @ 59.4g/t Au from 16m
SOMRC005: 7m @ 23.0 g/t Au from 53m including 3m @ 48.9g/t Au from 54m
SOMRC006: 8m @ 15.5 g/t Au from 89m including 3m @ 30.4g/t Au from 90m
Figure 2: Long section along ~1km of the Star of Mangaroon Shear Zone showing the location of recently drilled holes in relation to
previous drilling and the interpreted lodes remaining open and untested at depth. 1. Prime Minerals Annual Report 2008, WAMEX Report A79994
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The recent drilling intersected the 1-9m wide lode along a rheological contact between a hanging wall paragneiss and
footwall orthogneiss. The high-grade lode dips ~50-60° to the east and has been confirmed over ~200m strike and
to a depth of ~150m. Drilling to date indicates a steep northerly plunge to mineralisation which requires additional
drilling in 2024.
Mineralisation at the Star of Mangaroon is finely disseminated free gold within foliation parallel quartz veins,
occasionally associated with trace pyrrhotite, chalcopyrite and arsenopyrite.
Step-out, fence-line drilling to the south of the main workings has confirmed mineralisation at surface (SOMRC015:
3m @ 2.9g/t Au) that is interpreted to be part of a new lode along strike that also requires further drilling. If the
lode does swing west as indicated by this intercept, then holes SOMRC016 and SOMRC017 would have failed to test
the lode horizon, leaving the new lode open and untested at depth.
Step-out, fence-line drilling to the north of the main workings has confirmed thick oxide mineralisation (SOMRC018:
23m @ 0.4g/t Au from 10m). This mineralisation may be part of a proximal halo around high-grade lodes that requires
detailed mapping and sampling.
The Star of Mangaroon remains open at depth and along strike and may contain multiple high-grade lodes. Further
drilling in 2024 will involve systematic target testing along the >10km long Mangaroon Shear Zone.
Figure 3: Plan view image showing the location of recently drilled holes in relation to previous drilling over an ortho image.
The surface projection of the Star of Mangaroon lode is in red.
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Background Mangaroon Gold (100%)
Dreadnought began the consolidation of the Mangaroon region in late 2020, to pursue the nickel and high-grade gold
potential which had been identified by the Mangaroon Station pastoralist, Allan McDonald.
Dreadnought’s consolidated ownership has for the first time allowed for a comprehensive review of the high-grade
gold potential in the region.
This is the first-time information on the historical workings and gold occurrences from such a wide range of sources
has been compiled. Pleasingly, this has highlighted the significant scale of gold mineralisation along the >10km long
Mangaroon Shear Zone - a significant splay structure linking the Minga Bar and Edmund Faults. Due to previous
fractured small-scale ownership, no modern exploration has been undertaken and remarkably drilling of only ~200m
of strike has occurred along the Shear Zone.
Comprehensive reviews by Dreadnought have included: collating unpublished records; rock chipping and mapping of
historical workings; a first ever detailed airborne magnetics survey; and an ultrafine fraction (“UFF”) soil survey. This
work is ongoing and has already confirmed anomalism along the entire ~10km strike and generated 7 new prospects
under shallow cover.
Features from the work to date include (Figure 4):
•
Generation of 7 new targets (Tiger, Rory, KG, Gilmore, Hudson, Elzie and Sailor Man). Tiger stands out for
having a stronger gold (317ppb Au) and pathfinder anomaly than the Star of Mangaroon itself which is the main
historical mine in the region.
•
Extension of anomalism at Popeye to >500m under shallow cover. Popeye contains a small shaft and rock chips
to 121.2 g/t Au, 179 g/t Ag (SM7) and 30.1 g/t Au, 552 g/t Ag (RNLYD048).
•
Definition of drill targets at the undrilled Diamond Gold Mine, rock chips to 74.8 g/t Au (MNRK0515).
•
Definition of drill targets at
the undrilled Mitchell’s
Find, rock chips to 16.4 g/t
Au, 126 g/t Ag (RNLYD029).
•
Definition of gold-in-soil
anomalies with As-Bi-SbTe+/-Ag-Cu-Pb pathfinder
associations over the main
historical mines (Star of
Mangaroon, Two Peaks,
Pritchard’s, Lead Gold).
•
Infill and extensional UFF
soil surveys are ongoing to
define existing anomalies
and
generate
new
anomalies.
Figure 4: Image of the >10km
long Mangaroon Shear Zone
highlighting historical
mines/workings, and highly
prospective results.
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Background on Mangaroon (E08/3274, E8/3178, E09/2384, E09/2433, E09/2473: First Quantum Minerals Earn-in)
(E08/3275, E08/3439, E09/2290, E09/2359, E09/2370, E09/2405, E09/2448, E09/2449, E09/2450, E09/2467, E09/2478,
E09/2531, E09/2535, E09/2616, M09/91, M09/146, M09/147, M09/174, M09/175: 100%)
Mangaroon covers >5,000km2 of the Mangaroon Zone in the Gascoyne Region of Western Australia, the world’s
top investment jurisdiction as per the Investment Attractiveness Index published in the Fraser Institute’s Annual
Survey of Mining Companies. Part of the project is targeting Ni-Cu-PGE and is subject to First Quantum Minerals
Ltd (“FQM”) earning up to 70%. The region is also host to high-grade gold mineralisation at the Bangemall/Cobra
and Star of Mangaroon gold mining centres. Finally, there are the high NdPr:TREO ratio ironstone REE deposits at
Yin and Yangibana which have the Gifford Creek Carbonatite as their source.
Dreadnought has already successfully delivered:
• An independent Resource of 29.98Mt @ 1.04% TREO (83% Measured & Indicated) within the 43km long Yin
REE Ironstone Complex (ASX 30 Nov 2023).
• An initial independent Inferred Resource of 10.84Mt @ 1.00% TREO (ASX 28 Aug 2023) within the >17km long REE-
Nb-Ti-P-Sc Gifford Creek Carbonatite.
• Definition of over a dozen gold prospects within the >10km long Mangaroon Au Shear Zone (100%) where
fractured, small-scale ownership has limited previous gold exploration, with only ~200m of the >10km having
been drilled, notwithstanding the high-grade, camp scale potential.
• Discovery of massive Ni-Cu-Co-PGE sulphides along the ~45km long Money Intrusion (First Quantum Minerals
earn-in) which contains high tenor magmatic mineralisation.
Figure 5: Plan view map of Mangaroon showing the location of Au, Ni-Cu-Co-PGE and REE prospects in relation to
major structures, geology and roads.
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For further information please refer to previous ASX announcements:
•
•
•
•
•
•
•
•
•
25 November 2020
15 March 2021
7 April 2021
17 May 2021
12 September 2022
7 June 2023
4 September 2023
1 November 2023
11 December 2023
Mangaroon Ni-Cu-PGE & Au Project
Exploration Commences at Mangaroon Ni-Cu-PGE & Au Project
Option/JV Agreement Signed with Global Base Metal Miner
Update on Mangaroon Ni-Cu-PGE & Au Project
Star of Mangaroon Acquisition & Consolidation
Mangaroon Gold Review and Further Consolidation
Outstanding Gold Opportunities Along >10km Mangaroon Shear Zone
Gold Drilling Commenced at Star of Mangaroon
Thick, High-Grade Gold Including 7m @ 23.0g/t Au
UPCOMING NEWSFLOW
January: Results of Central Yilgarn Project Review (100%)
January: Update on Ni-Cu-Co-PGE Drilling at Mangaroon (Earn-in)
January: Quarterly Report
January/February: Update on Ni-Cu-Co-PGE IP Survey at Mangaroon (Earn-in)
February: Assays from RC drilling at Tarraji-Yampi (80%, 100%)
February: Results from target generation and definition work at Bresnahan HREE-Au-U (100%)
13-15 February 2024: RIU Explorers Conference
March: Half Year Financial Report
February: Results from surface sampling & mapping of LCT targets at Mangaroon & Central Yilgarn (100%)
March: Commencement of RC & diamond drilling at Mangaroon Ni-Cu-Co-PGE (Earn-in)
March/April: Commencement of RC drilling at Mangaroon Au (100%)
For further information please contact:
Dean Tuck
Managing Director
Dreadnought Resources Limited
E: dtuck@dreres.com.au
~Ends~
Jessamyn Lyons
Company Secretary
Dreadnought Resources Limited
E: jlyons@dreres.com.au
This announcement is authorised for release to the ASX by the Board of Dreadnought.
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Cautionary Statement
This announcement and information, opinions or conclusions expressed in the course of this announcement contains forecasts and forwardlooking information. Such forecasts, projections and information are not a guarantee of future performance, involve unknown risks and
uncertainties. Actual results and developments will almost certainly differ materially from those expressed or implied. There are a number of
risks, both specific to Dreadnought, and of a general nature which may affect the future operating and financial performance of Dreadnought,
and the value of an investment in Dreadnought including and not limited to title risk, renewal risk, economic conditions, stock market
fluctuations, commodity demand and price movements, timing of access to infrastructure, timing of environmental approvals, regulatory risks,
operational risks, reliance on key personnel, reserve estimations, native title risks, cultural heritage risks, foreign currency fluctuations, and
mining development, construction and commissioning risk.
Competent Person’s Statement – Exploration Results
The information in this announcement that relates to geology, exploration results and planning, and exploration targets was compiled by Mr.
Dean Tuck, who is a Member of the AIG, Managing Director, and shareholder of the Company. Mr. Tuck has sufficient experience which is
relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent
Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'.
Mr. Tuck consents to the inclusion in the announcement of the matters based on the 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.
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INVESTMENT HIGHLIGHTS
Kimberley Ni-Cu-Au Project (80/100%)
The project is located only 85kms from Derby in the
West Kimberley region of WA and was locked up as a
Defence Reserve since 1978.
The project has outcropping mineralisation and historic
workings which have seen no modern exploration.
Results to date indicate that there may be a related,
large scale, Proterozoic Cu-Au-Ag-Bi-Sb-Co system at
Tarraji-Yampi, similar to Cloncurry/Mt Isa and Tennant
Creek.
Mangaroon Ni-Cu-Co-3PGE JV & Au/REE 100%
Project
Mangaroon covers ~5,000kms2 and is located 250kms
south-east of Exmouth in the Gascoyne Region of WA.
At the Money Ni-Cu-Co-3PGE has been identified and
is subject to an earn-in by First Quantum Minerals (up
to 70%). Dreadnought also has areas of outcropping
high-grade gold including the historic Star of Mangaroon
and Diamonds gold mines. In addition, Mangaroon has
emerged as a globally significant, rapidly growing,
potential source of critical minerals. Highlights include:
-
An Exploration Target estimated for the top 150m
of ~40km of the Yin REE Ironstone Complex (ASX
13 Feb 2023).
-
An independent Resource for Yin Ironstones Complex of 29.98Mt @ 1.04% TREO over only ~4.6kms –
including an Measured and Indicated Resource of 26.3Mt @ 1.04% TREO (ASX 30 Nov 2023).
-
Regional source of rare earths at the Gifford Creek Carbonatite totaling ~17kms x ~1km (ASX 7 Aug 2023).
-
A large, independent initial Resource of 10.84Mt @ 1.00% TREO at the Gifford Creek Carbonatites, containing
a range of critical minerals including rare earths, niobium, phosphate, titanium and scandium (ASX 28 Aug 2023).
Bresnahan HREE-Au-U Project (100%)
Bresnahan is located ~125km southwest of Newman in the Ashburton Basin. The project comprises ~3,700kms2
covering over 200kms strike along the Bresnahan Basin / Wyloo Group unconformity. Bresnahan is prospective for
unconformity related heavy rare earth (“HREE”) deposits similar to Browns Range HREE deposits, unconformity
uranium (“U”) deposits and mesothermal lode gold similar to Paulsens Au-Ag-Sb deposits along strike.
Prior to consolidation by Dreadnought, the Bresnahan Basin had been successfully explored for unconformity
uranium with limited exploration for mesothermal gold. Bresnahan is a first mover opportunity to explore for
unconformity HREE.
Central Yilgarn Gold, Base Metals, Critical Minerals & Iron Ore Project (100%)
Central Yilgarn is located ~190km northwest of Kalgoorlie in the Yilgarn Craton. The project comprises ~1,400 kms2
covering ~150km of strike along the majority of the Illaara, Yerilgee, South Elvire and Evanston greenstone belts.
Central Yilgarn is prospective for typical Archean mesothermal lode gold deposits, VMS base metals, komatiite hosted
nickel sulphides and critical metals including Lithium-Cesium-Tantalum.
Prior to consolidation by Dreadnought, the Central Yilgarn was predominantly held by iron ore explorers and
remains highly prospective for iron ore.
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Table 1: Significant Intersections >0.3g/t Au with >10g/t Au highlighted.
Hole ID
SOMRC002
SOMRC004
incl
SOMRC005
incl
SOMRC006
incl
SOMRC007
SOMRC008
SOMRC013
and
SOMRC014
SOMRC015
SOMRC018
incl
SOMDD001
SOMDD002
From (m)
To (m)
51
9
16
53
54
89
90
19
68
88
102
157
0
10
30
16.0
68.2
52
18
18
60
57
97
93
20
70
92
105
160
3
33
33
17.4
70.7
Interval
(m)
1
9
2
7
3
8
3
1
2
4
3
3
3
23
3
1.4
2.5
Au (g/t)
Prospect
0.8
13.4
59.4
23.0
48.9
15.5
30.4
4.0
4.8
0.9
0.6
0.6
2.9
0.4
1.2
87.9
3.3
Star of Mangaroon
Table 2: Drill Collar Data (GDA94 MGAz50)
Hole ID
SOMRC001
SOMRC002
SOMRC003
SOMRC004
SOMRC005
SOMRC006
SOMRC007
SOMRC008
SOMRC009
SOMRC010
SOMRC011
SOMRC012
SOMRC013
SOMRC014
SOMRC015
SOMRC016
SOMRC017
SOMRC018
SOMDD001
SOMDD002
Easting
372308.1
372339.8
372373.4
372323.8
372362.1
372402.8
372331.5
372376.3
372420.1
372447.8
372326.4
372370.9
372409.8
372451.6
372262.6
372296.4
372330.2
372279.9
372325
372384.7
Northing
7359748
7359748
7359748
7359784
7359779
7359783
7359823
7359824
7359823
7359822
7359863
7359863
7359863
7359859
7359710
7359709
7359709
7359924
7359789
7359791
dreadnoughtresources.com.au
RL
284.524
284.561
284.037
283.839
283.476
282.597
284.297
283.571
283.01
282.785
285.235
284.776
284.097
283.949
285.631
286.316
285.893
287.664
283.815
282.868
Dip
-60
-60
-60
-60
-61
-61
-59
-58
-56
-61
-58
-60
-61
-61
-58
-60
-61
-60
-57
-59
Azimuth
274
270
274
274
274
272
272
273
271
270
277
274
274
277
267
267
265
30
271
254
EOH
33
75
123
36
84
114
42
90
126
180
42
84
138
204
84
84
84
102
41.2
96.7
Type
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
RC
DDH
DDH
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JORC Code, 2012 Edition – Table 1 Report Template
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria
JORC Code explanation
Commentary
Sampling techniques
•
Reverse Circulation (RC) and Diamond (DD) drilling was
undertaken to produce samples for assaying.
•
•
•
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.
RC Drilling
Two sampling techniques were utilised for the RC drilling, 1m
metre splits directly from the rig sampling system for each
metre and 3m composite sampling from spoil piles. Samples
submitted to the laboratory were determined by the site
geologist.
1m Splits
From every metre drilled a 2-3kg sample (split) was subsampled into a calico bag via a Metzke cone splitter from each
metre of drilling.
3m Composites
All remaining spoil from the sampling system was collected in
buckets from the sampling system and neatly deposited in
rows adjacent to the rig. An aluminium scoop was used to
then sub-sample each spoil pile to create a 2-3kg 3m
composite sample in a calico bag.
A pXRF is used on site to help determine mineralised samples.
Mineralised intervals have the 1m split collected, while
unmineralised samples have 3m composites collected.
Diamond Core
Core is orientated for structural and geotechnical logging
where possible. In orientated core, half core is submitted to
the lab for analysis in intervals ranging from 20cm to 1m
depending on the geological context. If core is orientated,
then the half core is cut so as to preserve the orientation line
with the same side of the core submitted down the hole.
All samples are submitted to ALS Laboratories in Perth for
determination of gold by PhotonAssay from crushed sample
(ALS Method Au-PA01).
Select samples are also submitted for 48 multi-elements via 4
acid digestion with MS/ICP finish (ALS Code ME-MS61) to
assist with lithological interpretation.
QAQC samples consisting of duplicates, blanks and CRM’s
(OREAS Standards) are inserted through the program at a
rate of 1:50 samples.
Drilling techniques
•
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.).
RC Drilling
The first 3 drill holes were completed by Ausdrill utilising a
Drill Rigs Australia truck mounted Schramm T685WS drill rig
with additional air from an auxiliary compressor and booster.
Bit size was 5¾“.
The remaining drill holes were completed by Top Drill
utilising a Schramm T685WS drill rig with additional air from
an auxiliary compressor and booster. Bit size was 5½ ”.
Diamond Drilling
Diamond drilling was undertaken by Hagstrom Drilling with
a truck-mounted low impact diamond drill rig. Drilling is
either HQ to end of hole or initially HQ and dropping to
NQ once the hole is cased off for deeper drill holes.
Core is orientated using a Reflex Sprint gyro and True Core
Orientation Tool.
dreadnoughtresources.com.au
11
ASX:DRE
+61 (08) 9473 8345
info@dreres.com.au
Unit 1, 4 Burgay Court
Osborne Park WA 6017
ABN 40 119 031 864
Criteria
JORC Code explanation
Drill sample recovery
•
•
•
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.
Commentary
RC Drilling
Drilling was undertaken using a ‘best practice’ approach to
achieve maximum sample recovery and quality through the
mineralised zones.
Best practice sampling procedure included: suitable usage of
dust suppression, suitable shroud, lifting off bottom between
each metre, cleaning of sampling equipment, ensuring a dry
sample and suitable supervision by the supervising geologist
to ensure good sample quality.
Diamond Drilling
HQ and NQ drilling has been undertaken. All core
recoveries are measured and recorded by the drill crew for
each run and remeasured and checked by Dreadnought
personnel.
Core recovery to date has been very high.
Logging
•
•
•
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.
At this stage, no known bias occurs between sample recovery
and grade.
RC Drilling
RC chips were logged under the supervision of a Senior
Geologist with sufficient experience in this geological terrane
and relevant styles of mineralisation using an industry standard
logging system which could eventually be utilised within a
Mineral Resource Estimation.
Lithology, mineralisation, alteration, veining, weathering and
texture were all recorded digitally.
Chips were washed each metre and stored in chip trays for
preservation and future reference.
RC pulp material is also analysed on the rig by pXRF, and
magnetic susceptibility meter to assist with logging and the
identification of mineralisation.
RC logging is qualitative, quantitative or semi-quantitative in
nature.
Diamond Drilling
Diamond core is logged under supervision of a Senior
Geologist with sufficient experience in this geological terrane
and relevant styles of mineralisation using an industry
standard logging system which could eventually be utilised
within a Mineral Resource Estimation.
Lithology, mineralisation, alteration, veining, weathering and
structure are recorded digitally.
DD Logging is qualitative, quantitative or semi-quantitative in
nature.
Sub-sampling
techniques and sample
preparation
•
•
•
•
•
•
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 t
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