SMEDG Technical Presentation
Released
Released
Announcement PDF
Mineral Hill Project
Data Mining for a Long Life
Hardrock Mine
SMEDG Technical Presentation
27th July 2023
Stuart Hayward, Chief Geologist
Mineral Hill delivering growth in gold and copper production
3.8Moz Misima Gold Project Definitive Feasibility Study complete
ASX: KSN
Important Notices and Disclaimer
Forward looking statements: Certain statements contained in this presentation, including information as to the future financial or operating performance of KSN and its projects, are forward
looking statements. Such forward looking statements:
include, among other things, statements regarding incomplete and uncertain proposals or targets, production and prices, operating costs and results, capital expenditures, and are or may be
based on assumptions and estimates related to future technical, economic, market, political, social and other conditions;
are necessarily based upon a number of estimates and assumptions that, while considered reasonable by KSN, are inherently subject to significant technical, business, economic,
competitive, political and social uncertainties and contingencies; and
involve known and unknown risks and uncertainties that could cause actual events or results to differ materially from estimated or anticipated events or results reflected in such forwardlooking statements.
KSN disclaims any intent or obligation to update publicly any forward-looking statements, whether as a result of new information, future events or results or otherwise. The words “believe”,
“expect”, “anticipate”, “indicate”, “contemplate”, “target”, “scope”, “plan”, “intends”, “continue”, “budget”, “estimate”, “may”, “will”, “schedule” and similar expressions identify forward
looking statements. All forward looking statements made in this presentation are qualified by the foregoing cautionary statements. Recipients are cautioned that forward looking statements
are not guarantees of future performance and accordingly investors are cautioned not to put undue reliance on forward looking statements due to the inherent uncertainty therein.
Disclaimer: No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions and conclusions contained in
this presentation. To the maximum extent permitted by law, none of KSN, its directors, employees or agents, nor any other person accepts any liability, including, without limitation, any
liability arising out of fault of negligence, for any loss arising from the use of the information contained in this presentation. In particular, no representation or warranty, express or implied is
given as to the accuracy, completeness or correctness, likelihood of achievement or reasonableness or any forecasts, prospects or returns contained in this presentation nor is any obligation
assumed to update such information. Such forecasts, prospects or returns are by their nature subject to significant uncertainties and contingencies.
The information contained in this presentation is for informational purposes only and does not constitute an offer to issue, or arrange to issue, securities or other financial products. The
information contained in this presentation is not investment or financial product advice and is not intended to be used as the basis for making an investment decision. The presentation has
been prepared without taking into account the investment objectives, financial situation or particular needs of any particular person. Before making an investment decision, you should
consider, with or without the assistance of a financial adviser, whether an investment is appropriate in light of your particular investment needs, objectives and financial circumstances. Past
performance is no guarantee of future performance.
For further information on the Life of Mine at Mineral Hill referred to in this Presentation, refer to the Company’s ASX Announcement dated 27 June 2023, $6.5m Capital Raising or Mineral
Hill Production Expansion.
Exploration by Other Explorers
This presentation contains information sourced from the reports of Other Explorers. References to the original reports are provided as footnotes where the information is cited in this
presentation. KSN does not vouch for the accuracy of these reports. KSN has taken the decision to include this information as it is in the public domain and as we assess it to be of
relevance to shareholders and investors.
www.kingstonresources.com.au I ASX: KSN
SMEDG Technical Presentation July 2023
2
Important Notices and Disclaimer
Underground Production Target
The LOM plan includes Mineral Resource Estimates from the Southern Ore Zone (SOZ) and Jack’s Hut to estimate the Production Target. All Ore Reserves and Mineral Resources
underpinning this LOM plan have been prepared by Competent Persons in accordance with the 2012 JORC reporting guidelines. Probable Ore Reserve provides 46% of the total LOM
processing plant feed tonnage. The Underground production target is based on Mineral Resource estimates and comprises Measured (7%), Indicated (31%), Inferred (56%) and unclassified
(6%) material.
There is a low level of confidence associated with Inferred Mineral Resources and there is no certainty that further exploration work will result in the determination of Indicated Mineral
Resources or that the production target itself will be realised.
The stated production target is based on the Company’s current expectations of future results or events and should not be solely relied upon by investors when making investment decisions.
Further evaluation work and appropriate studies are required to establish sufficient confidence that this target will be met. The Company notes that the Project forecasts a positive financial
performance and is therefore satisfied that the use of Inferred resources in production target reporting and forecast financial information is not the determining factor in overall Project
viability and that it is reasonable to report the LOM plan with Inferred Resources.
The Company has concluded that it is has a reasonable basis for providing the forward-looking statements included in this announcement. The detailed reasons for that conclusion are
outline throughout this presentation.
www.kingstonresources.com.au I ASX: KSN
SMEDG Technical Presentation July 2023
3
Company vision
Becoming a leading ASX-listed mid-tier gold and copper producer, pioneering excellence and delivering
sustainable value to stakeholders
Two advanced 100%-owned gold & copper projects
Management team; jurisdictional experience and a track record of success
Long-term diversified gold-copper producer in NSW
Exceptional growth opportunity; exploration upside & regional acquisition
Existing approvals and extensive infrastructure
AU$18+ million cash and existing operating cashflow for growth expansion
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SMEDG Technical Presentation July 2023
4
A diversified portfolio of gold and copper projects
Unleashing exponential growth and value
Mineral Hill Mine, NSW (100%)
• Well-funded: Estimated cash balance of
AU$18.2M and existing operating cash
flow from the Tailings Project.
• Mining Expansion: Open pit and
underground mining scheduled out to the
end of 2027.
• Significant Upside: Current life of mine
only utilizes 22% of the current 8.9Mt of
Mineral Resources.
• Infrastructure Excellence: Extensive
existing infrastructure with all permits
approvals in place.
• Exploration Potential: Exceptional upside
within current Mining Leases (ML) and
Exploration Licenses (EL).
• Current Focus: Maximizing returns
through Tailings Project gold production,
proactive exploration drilling, and
strategic underground re-entry efforts.
www.kingstonresources.com.au I ASX: KSN
Misima Gold Project, PNG
(100%)
• Strong Financial Viability: Pre-Tax
Net Present Value (NPV) of A$956
Million (based on a US$1,800/oz
Gold Price).
• Gold Price Sensitivity: Highly
leveraged to the upside of the gold
price, amplifying potential returns.
• Current Focus: Prioritizing ESIA
reports, strategic funding &
development strategies.
1.
2.
See ASX Announcement dated 27 June 2023, $6.5m Capital Raising or Mineral Hill Production Expansion
See ASX Announcement dated 3 July 2023, Additional funding received from PURE Asset Management
SMEDG Technical Presentation July 2023
5
Corporate snapshot
Current
Share Price1
$0.08
Directors & Management
Mick Wilkes
Non-Executive Chairman
35+ years experience
Shares on Issue
468.6M
Andrew Corbett
Managing Director
25+ years experience
Market Capitalisation
$38.4M
Stuart Rechner
Non-Executive Director
20+ years experience
Enterprise Value
$30.2M
Tony Wehby
Non-Executive Director
35+ years experience
Cash2
$18.2M
Stuart Hayward
Chief Geologist
35+ years experience
Debt
$10.0M
Geoff Merrell
GM Mineral Hill
25+ years experience
12 month Share Price Performance
Shareholder Structure
MarketVolume ('000) (RHS)
Close Price (A$) (LHS)
$0.16
8,000
$0.14
7,000
$0.12
6,000
$0.10
5,000
$0.08
4,000
$0.06
3,000
$0.04
2,000
$0.02
1,000
$0.00
Jun-22
0
Aug-22
Oct-22
Dec-22
Feb-23
Apr-23
● Quintana
● Delphi
● Winchester Investments
● Farjoy
● BNP Paribas Nominees
● Other shareholders
11.7%
13.1%
7.4%
6.8%
4.1%
56.9%
1. Close of trading 18 July 2023. 2. Estimated Cash balance, as at 30 June 2023
www.kingstonresources.com.au I ASX: KSN
SMEDG Technical Presentation July 2023
6
Mineral Hill
Overview
SMEDG Technical Presentation July 2023
7
Mineral Hill – strategic location
Significant organic and regional resource growth opportunities
Abundance of gold-silver and polymetallic Cobar-style
deposits within approved ML’s and within trucking distance
of Mineral Hill processing plant
Wonawinta
Manuka
Federation
Aurelia
Location
516km W of Sydney NSW in Cobar Basin
Ownership
100%: 20 ML’s (4.85km2) and 2 EL’s (335km2)
Reserves (recovered)1,2
53,000 AuEq oz
Resources (recovered)1,2 795,000 AuEq oz (40% Cu, 30% Au)
Orebody
Structure controlled- polymetallic base metal
breccia & vein; Low-sulphidation epithermal
Mining Methods
Open pit and underground long-hole stoping
Water
Supplied from underground and site storage
Power
Mains with grid upgrade
Historical Production
396koz Au, 33kt Cu (plus Pb, Zn concentrate)
1. Gold equivalent ounces calculated based on consensus commodity prices with adjustments based on company
expectations. See Appendix for equivalency calculations
2. See KSN ASX announcements on 18 November 2021, 24 November 2022, 15 March 2023, 21 March 2023 for
additional Mineral Hill Resource and Reserve information.
www.kingstonresources.com.au I ASX: KSN
SMEDG Technical Presentation July 2023
8
Mineral Hill – Evolution and Growth Phases
Long life, strategic asset in the southern Cobar region
Phase 3
Phase 2
Phase 1
Open-pit and Underground Mining
Tailings Project Cash Flow
•
Continuing gold dore production
from the Tailings Project.
•
Refurbish the existing processing
plant and underground
infrastructure.
•
Build the resource and refine mine
planning.
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•
Current LOM out to 2027+
•
Targeting 30 - 35kozpa+ AuEq.
•
Dore, gold concentrate, copper, lead
and zinc concentrate.
•
Organically grow the resource base.
•
Pipeline of resources development
targets beyond LOM inventory.
Grow and Expand
•
Extend the LOM.
•
Add quality throughput to maximise
free cash flow.
•
Target flotation plant expansion from
350ktpa to 500ktpa.
•
Aspiration of 50kozpa+ AuEq.
•
Grow through regional acquisition.
SMEDG Technical Presentation July 2023
9
Mineral Hill – mining lease and infrastructure
Extensive existing infrastructure enables accelerated path to
gold-silver dore, copper, lead and zinc production
EL1999
Pearse Nth
• History of underground and open pit mines.
• Numerous gold-silver and polymetallic Cobar style mineral deposits all
within approved mining leases.
Mineral Resources
Additional Deposits
• Current cash flow from reprocessing historical tailings, owner miner.
• Full mine approvals, environmental permits & biodiversity offset,
tailings facilities, water and power all in place.
Pearse Sth
Hut
Processing Infrastructure
• CIL with 700ktpa
capacity.
GD140
Parker’s Hill
• Flotation plant capacity
of 350ktpa.
• 3 x separate base metal
concentrates; copper,
lead and zinc (superior
payability compared to
bulk concentrate).
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Parker’s Hill
East
TSF
SOZ
EL1999
SMEDG Technical Presentation July 2023
10
Mineral Hill – Initial LOM to 2027
Key stages in implementing transformational growth at Mineral Hill
Calendar Year
2023
2024
2025
2026
2027
Cash flow from Tailings Project
Processing plant refurbishment
Underground re-access works
Underground resource drilling
Open pit mining
Open pit processing
Underground mining
Underground processing
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SMEDG Technical Presentation July 2023
11
Mineral Hill Mine – Resources & Reserves
Attractive commodity base with significant growth potential
• High grade Pearse open pit Mineral Resources.
• Polymetallic underground Mineral Resources.
• Additional resource areas to be estimated in CY23
(Parker’s Hill & Red Terror)
Total Mineral Resources
Deposit
Au
(g/t)
1,171
1.07
0
40
204
3.77
70
25
Pearse North
239
2.97
25
23
190
Southern Ore Zone
3804
1.29
19
0.9%
1.6%
1.4%
158
TSF
Total Probable Reserve Inventory
Deposit
Kt
Pearse South
Zn
%
Au
(Koz)
Ag
(Koz)
Cu
(Kt)
Pb
(Kt)
Zn
(Kt)
2349
34
60
54
456
Au (g/t)
1.07
Pearse South
140
4.00
84
18
375
Jack's Hut
1640
1.25
20
0.9%
0.8%
0.6%
66
1051
15
14
10
Pearse North
120
3.40
25
13
95
Parkers Hill
1843
0.19
43
1.3%
2.1%
0.9%
11
2520
23
39
17
1,431
1.6
57
71
470
TOTAL
8,901
1.13
26
1.0%
1.6%
1.1%
323
6,566
72
113
81
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Ag (Koz)
Pb
%
Kt
TOTAL
Au (Koz)
Cu
%
1,171
TSF
Ag (g/t)
Ag
(g/t)
40
SMEDG Technical Presentation July 2023
12
Mineral Hill – production outlook
Zinc
Transitioning to open pit and underground mining
Lead
• Successful Tailing project delivering platform for
growth.
FY261
• LOM production target out to 2028.
• Transition to open pit production in April 2024.
Copper
Silver
• High grade gold and silver from open pit mining.
• Underground mining to produce high-tech
critical metals, with first copper concentrate in
CY2025.
Silver
Lead
Zinc
• High potential to add mining inventory from
exploration within the current mining leases.
FY251
Gold
Copper
Gold
Gold
FY241
Silver
1. Pie sectors based on proportion of payable metal.
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SMEDG Technical Presentation July 2023
13
Mineral Hill – leveraging existing gold production from the Tailings Project
Tailings processing with CIL capacity up to 700ktpa
Quarterly Gold Production
• Optimised the Tailings Project; increased
throughput rates and increased recovery.
Gold Sold (oz)
• Gold production increased significantly, leading to
reduced unit costs since the start of the project.
AISC (A$/oz)
6,000
5,000
• Mining of the tailings facility allows it to be rebuilt
for future tailings storage.
Gold Sales (oz) and AISC (A$/oz)
• Owner mining focus to drive down costs.
5,000
4,431
4,000
4,777
3,000
2,500
3,000
1,000
4,000
3,500
3,705
3,153
2,000
4,500
2,079
2,000
1,770
1,543
1,500
1,494
1,000
500
-
-
Figure: Tailings Mining Project – current high margin gold production
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SMEDG Technical Presentation July 2023
14
Mineral Hill – Surface Mining
High-grade gold ore with silver credits
• Two separate open pits
at Pearse:
• New pit at Pearse
North
• Deepening and
cutback of Pearse
South
• All permits, management
plans and environmental
approvals in place.
• High-grade gold/silver
ore (4.4g/t AuEq).
• Owner mining strategy to
be employed.
• Discovering additional
high-grade Au/Ag
deposits within the ML
will be a key focus.
Mining
Unit
Open pit
Oxide Tonnes
kt
7.8
Sulphide Tonnes
kt
250
Total Ore Tonnes
kt
258
Gold
g/t
3.7
Silver
g/t
58
Gold
koz
31
Silver
koz
470
Total Waste Tonnes
kt
2,674
Total Ore Tonnes
kt
258
Total Material Movement
kt
2,933
Strip Ratio
W:O
10:1
Grades
Metal
Material Movement
Pearse North and South pit designs
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SMEDG Technical Presentation July 2023
15
Mineral Hill – Underground Mining
Existing decline development minimises capital requirement to access high-grade ore
• Production target1 using the Southern Ore Zone (SOZ) and Jack’s Hut
MREs.
• Existing decline development reduces capital expenditure.
• Access to SOZ underground development has commenced.
• Resource drilling in Q2FY24. Initial Ore Reserve by Q4FY24.
• Jack’s Hut is highly prospective with potential to increase Mineral
Resources along the entire Mineral Hill trend (2.2km strike length).
Underground longitudinal projection looking east – Jack’s Hut and Southern Ore Zone
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1.
Mining Physicals
Mining
Development Ore Tonnes
Stope Ore Tonnes
Grades (Dev and Stope)
Gold
Silver
Copper
Lead
Zinc
Metal
Gold
Silver
Copper
Lead
Zinc
Material Movement
Waste Tonnes
Ore Tonnes
Total Material Movement
Lateral Development
Capital Development
Operating Development
Total Lateral Development
Vertical Development
Vertical Development
See ASX Announcement dated 27 June 2023, $6.5m Capital Raising or Mineral Hill Production Expansion for key
assumptions.
Unit
Underground
kt
kt
112
773
g/t
g/t
%
%
%
1.7
18
0.9%
1.6%
1.3%
koz
koz
kt
kt
kt
47
503
8
14
11
kt
kt
kt
309
885
1,194
m
m
m
1,509
6,845
8,534
m
240
SMEDG Technical Presentation July 2023
16
5 Yr Production & Development Plan
Mineral Hill – Mine Ore Zones, Resource & Reserve
Status
1. TSF1
KSN
2. Pearse South
KSN
3. Pearse North
KSN
4. Southern Ore Zone
KSN
• SOZ Reserve due June 2024
5. Jack’s Hut
KSN
• Jack’s Hut
• Iodide
• Missing Link
• Ashes
6. Parkers Hill – Red Terror
KBL
7. GD140
8. Eastern Ore Zone
EL1999
3
JORC 2012 Reserve
JORC 2012 Reserve
JORC 2012 Reserve
JORC 2012 Resource
2
Pearse Nth
Pearse Sth
JORC 2012 Resource
Jack’s Hut
5
7
EOZ
8
TSF
JORC 2004 Resource
1
4
GD140
6
Parker Hill
SOZ
EL1999
EL1999
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SMEDG Technical Presentation July 2023
17
Advanced near mine development plan
Resource expansion strategy and near mine
exploration FY23/24
EL1999
4
• Drilling at Pearse North to test Inferred and for pit slope
analysis.
Pearse Nth
• Drilling at SOZ to test Inferred and determine potential
stope spans.
Pearse Sth
3
• Drilling from underground to test SOZ Inferred and find
extensions.
2
• Surface RC/diamond drilling at Jack’s Hut – infill shallow
levels and find extensions to modelled structures.
5
GD140
Jack’s Hut
EOZ
• RC/Diamond drilling near mine geophysical targets.
1
Southern Ore Zone (SOZ) Extension.
2
Ashes Graben.
3
Area 6.
4
Bogong Prospect.
5
EOZ Extensions
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Parker Hill
TSF
SOZ
EL1999
1
EL1999
SMEDG Technical Presentation July 2023
18
Mineral Hill
Resource
Development and
Exploration
Strategy
SMEDG Technical Presentation July 2023
19
Production & Development Plan
Aiming for new mine production from late 2023 – enhance existing Resources & Reserves + Discovery
2022
2023
2024
2025
2026+
Tailings production
Pearse South/Pearse North
SOZ underground
Jacks Hut
Parkers Hill / GD 140
Drilling
Development
Production
• Focus on Pearse open pits and SOZ underground for production following tailings processing
• Targeting commencement of production from existing Reserves at the Pearse pits followed by a
restart at SOZ utilising the existing underground development
• Development of advanced open pit targets at Jacks Hut, Missing Link and Parkers Hill to secure
longer term production growth beyond initial five-year mine plan
• Discovery of new deposit through efficient and effective exploration on KSN tenements
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SMEDG Technical Presentation July 2023
20
Exploration & Resource Development Update
Exploration & Resource Definition Strategy
Growing the Company by Growing Mineral Hill
Strategic Aims:
Define new mine production from late 2023
underpinned by existing resource and reserve base
and new discoveries
1. Mine Lease Areas (ML) (4.85 km2)
Enhance, extend and discover Mineral Resources that
meet JORC 2012 standards, that will efficiently convert to
Ore Reserves that form and establish a Life of Mine Plan
for the Mineral Hill Mine (ML) beyond the TSF project.
2. EL1999 (38.3 km2)
Develop a ranked pipeline of targets on EL1999 and a
program of works to test and advance targets with the
highest potential for economic extraction.
3. EL8334 (290 km2)
Develop a ranked pipeline of targets on EL8334 and a
program of works to test and advance targets with the
highest potential for economic.
4. Seek regional projects and opportunities that have the
potential to add ore feed to the Mineral Hill processing
plant and extend Project life.
KSN Mineral Hill Project tenement package
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SMEDG Technical Presentation July 2023
21
Mineral Hill
Regional Context
SMEDG Technical Presentation July 2023
22
Exploration & Resource Development Update
Agenda
•
Regional Context
•
EL8334 Review and Target
Generation
•
EL1999 Review and Target
Generation
•
Mineral Hill Resource
Development update
Mineral Hill Project Area viewed to the Southeast (Foreground Pearse North – Pearse South; Middle distance – Processing Plant; TSF Project)
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SMEDG Technical Presentation July 2023
23
Mineral Hill District - Regional Context
Regional scale metallogenic and structure framework
•
Regional scale metallogenic and structure framework
•
Controlling mineral system location and development - deep
tapping magmatic fluid pathways
•
Gilmore Fault Zone (Gilmore Suture)
• Compound fault complex striking N-NNW
• Eastern boundary of Siluro-Devonian sediments and
volcanics of the Cobar Supergroup and Cobar Basin
• Boundary between Siluro-Devonian Kopyje Group and
Ordovician multiply-deformed turbidites – Girilambone
Group and Ordovician Macquarie Arc
•
Lachlan Transverse Zone (LTZ) - a major yet subtle westnorthwest- trending structure that cuts across the Tasmanides
of southeastern Australia(Glenn & Wurth, 1999).
•
Framework manifests as breaks in trends of gravity signal that
defines regional scale Orogens and geological units.
100km
NSW Iso. Grav. 500m
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SMEDG Technical Presentation July 2023
24
Mineral Hill District - Regional Context
Regional scale metallogenic and structure framework
•
Regional scale metallogenic and structure framework
•
Controlling mineral system location and development - deep
tapping magmatic fluid pathways
•
Framework manifest as breaks and offsets in trends of
magnetic domains that defines regional scale Orogens and
geological units
•
Interaction between Gilmore Suture and Lachlan Transverse
Zone (LTZ) manifest as major flexures in the basin edge parallel
structures
• Locus of multiple mineral deposits and mineral
occurrences
•
Mineral Hill ML and EL tenements capture highly prospective
terrain over 335 km2
100km
NSW RTP TMI 25m
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SMEDG Technical Presentation July 2023
25
Mineral Hill District - Regional Context
Regional Geophysics - Gravity
•
Major crustal structures
• Gravity
• Resistivity contrasts in magnetotellurics (MT)
• Change in Ordovician basement geology from
Adaminaby Group to Girilambone Group
•
Coincident:
o Gilmore Fault Zone
o Deep crustal faults
o Axis of hotter
o Corresponds with Lachlan Transverse Zone
and the Rookery Fault
•
Favourable structural architecture with intrusive
granites
50km
Isostatic Gravity with trend of higher metamorphic grade
Data & NSW Solid Geology interpretation from MinView geoscience data and web mapper
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SMEDG Technical Presentation July 2023
26
Mineral Hill District - Regional Context
Mineral Systems & Target Type
W
Gilmore Fault Zone
E
Target Type: Orogenic Mineral Systems
•
Granite fluid & metal source
•
Structure pathways
•
Host rock traps
•
Preservation
Prospective for:
•
Cobar type Zn-Pb-Ag
•
Cobar type Cu-Au
•
Lode Au
•
Lode Sb-Au
Mineral systems framework for critical commodities- Diagrammatic sketch of the orogenic mineral system illustrating the relative location of deposits types within the
overall setting and the likely distribution of critical and other commodities within and around these deposit types. Ref. Geoscience Australia
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SMEDG Technical Presentation July 2023
27
Mineral Hill District - Regional Context
Mineral Hill District – Geology
•
•
•
•
•
•
EL 1999 and EL 8334 cover a NW-trending corridor - the
Canbelego – Mineral Hill Belt.
The licences host Ordovician Girilambone Group overlain by
Early Devonian rocks and Quaternary cover.
The oldest rocks in the area are the Cambro-Ordovician
Girilambone Groups which represent a sequence of
metasediments and mafic volcanics. This stratigraphic unit is
characterised by a high response in the magnetic data.
The Girilambone Group is overlain by the Mineral Hill Volcanics
– a series of pyroclastic flows (ignimbrites, vitric and lapilli tuffs)
with intercalated sediments of Silurian – Lower Devonian age.
The Mineral Hill Volcanics are overlain by units of the Majuba
Volcanics (feldspar +/- quartz phyric, locally flow-banded
rhyolitic to dacitic lavas), Devonian Talingaboolba Formation (a
monotonous sequence of sandstones, siltstones and
conglomerates which either unconformably overlie the Mineral
Hill Volcanics or are over-thrust over the volcanics) and Myamley
Sandstone.
Sedimentary and volcanic units have been intruded by Yellow
Mountain Granite – a foliated, medium-grained, equigranular
and porphyritic biotite granite
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100km
SMEDG Technical Presentation July 2023
28
Mineral Hill District - Regional Context
Mineral Hill District – Geology and Deposit Styles
•
Gilmore Fault Zone striking N-NNW (orogenic Au, e.g. Mt Boppy)
•
Devonian Yarra Yarra Creek Group sediments and limestone
(carbonate replacement e.g. Manuka)
•
Siluro-Devonian granite - Yellow Mountain Granite (intrusive
related e.g. Yellow Mountain)
•
Siluro-Devonian sediments and volcanics of the Cobar
Supergroup, Kopyje Group (Cobar-type Zn-Pb-Ag and Cu Au e.g.
Mineral Hill, Hera, Peak, CSA, Endeavour)
•
Ordovician multiply-deformed turbidites – Girilambone Group
(orogenic Cu-Ag-Au e.g. Tritton)
100km
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SMEDG Technical Presentation July 2023
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Mineral System Approach to Exploration and Evaluation
Key Exploration Tools and Concepts
Schematic cross section of geophysical features associated with the
Southern Ore Zone mineralization.
•
Surface geology
•
Aeromagnetics and radiometrics
+ Gravity
•
Surface geochemistry (Soil, Rock
Chip, Stream Sed, etc.)
•
Coincident IP chargeability high
and gravity low/high contrast
•
Linear to arcuate IP chargeability
high
•
Mineral system models, and
metal & alteration zonation
•
Drill hole and mining data sets
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Cypress (1969-1970) Dipole-Dipole IP Chargeability
Model depth slices (colour image) over magnetics
(background texture) with known resources (yellow and
purple polygons).
Deposit and lode specific metal zonation and pathfinder elements (Compound projection from the east)
1999 Soil geochemistry
SOZ lode specific metal zonation (after Morrison & Others)
EL1999 RTP Magnetics
SMEDG Technical Presentation July 2023
30
Mineral Hill
EL8334
Exploration and
Targets
SMEDG Technical Presentation July 2023
31
EL8334 Exploration
EL8334 Exploration
•
District scale review – geology & geophysics
•
Mineral systems approach to better understand
prospectivity and exploration potential
•
Reporting and data of c. 36 previous explorers
•
Previous exploration data sourced from
Minview (GSNSW web access for geoscientific
data): stream sediments, soils, rock chips,
drilling
•
Targets identified in EL8334 also guided by
prev. consultants: E.g. geochemical thresholds
of Rutherford (1996), and structural dilational
zones of Etheridge Henley Williams (1997)
Magnetics TMI RTP 1VD highlighting the Gilmore Fault Zone
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SMEDG Technical Presentation July 2023
32
EL8334 Exploration
EL8334 Target Summary
EL8334 targets
• Prospective geological units
• 40+ line km of Pb-Zn-+/-Cu in soil
geochemistry anomalies
• Multiple Au-As in soil geochemistry
anomalies
• Coincident complex AEM response
• Existing detailed gravity data
•
5 principal target areas
1. Claytons Dam (Au)
2. Walkers Hill (Au-Cu-Pb)
3. Long Panel Mine & Websters
Gossan (Pb-Zn-Cu-Au)
4. Gleninga (Au)
5. Yellow Mountain & China Workings
(Pb-Zn-Cu-Au)
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SMEDG Technical Presentation July 2023
33
EL8334 Exploration
EL8334 FY24-25 Focus Areas
• Aim: assess and explore and turnover
targets areas in the next 2 year period
• Strategy: Focus on known Base metal and
precious metal target areas from historical
data
• Staged assessment
• EL wide geophysical target assessment
and review in context with regional and
detailed magnetics, gravity and HTEM
data sets
• 5 primary target areas in the south
• Walkers Hill and NW
• Low cost, rapid coverage of target zones
with Cypress Pines and Soil Geochem
with pXRF (See Inset)
• Reconnaissance RC of selected targets
to 200mdh
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SMEDG Technical Presentation July 2023
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Mineral Hill
EL1999
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