Mark Arundell, Exploration Manager-Australia, Castillo Copper - Wongoni- The hidden porphyry copper?
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Transcript of Mark Arundell, Exploration Manager-Australia, Castillo Copper - Wongoni- The hidden porphyry copper?
CASTILLO COPPER LIMITED
Los Bronces mine (Anglo American)
Los Bayos sector, Rio Rocin Project
(Castillo Copper)
StatementsCompetent Persons Statement
The information in this presentation, which relates to Mineral Resources and exploration results, has been reviewed by Dr Nicholas
Lindsay and Mr Mark Arundell. This information, in the opinion of Dr Lindsay and Mr Arundell, complies with the reporting standards of
the 2004 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'.
Dr Lindsay and Mr Arundell are Members of the Australian Institute of Geoscientists and have sufficient experience which is relevant to
the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking to qualify as a
Competent Person as defined in the 2004 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and
Ore Reserves'. Dr Lindsay is a Director of and Mr Mark Arundell is a consultant to Castillo Copper Limited and both consent to this
presentation
Forward Looking Statement
This presentation includes certain ‘forward looking statements’. All statements, other than statements of historical fact, are forward
looking statements that involve various risks and uncertainties. There can be no assurances that such statements will prove accurate, and
actual results and future events could differ materially from those anticipated in such statements.
Such information contained herein represents management’s best judgment as of the date hereof based on information currently
available. The company does not assume the obligation to update any forward- looking statement
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About Castillo Copper
• Castillo Copper is pure copper exploration company
focused on Chile, the world’s leading copper producer
• Chile remains highly prospective for discovery of
large and high grade orebodies
Castillo Copper is different because it:
• Has a long and successful history of operating in Chile
• Has an extensive local network of contacts
• Is focused on the big value-add that comes from
finding ore bodies, based on three carefully selected
projects with proven copper mineralisation
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ASX listed: CCZ
Capital Structure
• Price 0.06 $/share (24/6/13)
• Shares 80,200,004
• Options 12,100,000 at $0.20 by 30/6/14
5,000,000 at $0.10 by 20/6/17
• Market Cap. ~A$4.8 million
Board & Management
Chairman (Non-Exec) William (Bill) Ryan
Managing Director Nicholas Lindsay
Executive Director Scott Funston
Non-Executive Director Daniel Crennan
Company Secretary David McEntaggart
General Manager (Chile) Fredy Bustos
Explor Manager (Aust) Mark ArundellOwnership
• Board & Management 16.9%
• Top 20 shareholders 67.4%
• Listed 20 May 2013
• Formerly Oakland Resources Limited ASX:OKL
Castillo Australian Projects
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Wongoni
Apsley
Crosby
Billilingra
Orange
Wongoni Porphyry Gold Copper
� Historic small scale Copper producer
� Under explored Cadia / Northparkes host rock sequence
� Geophysical signature akin to Northparkes & Cadia
� Potentially unrecognised Molong Belt
� High K calc alkaline assemblage
� Advanced argillic alteration system
� Alteration / geochemistry is zoned → vector to porphyry
Gold-Copper mineralisation
� Shallow cover (<100m) barrier to previous exploration
� Cadia (Newcrest) : 44Moz Gold, 7.5Mt Copper
� Northparkes (Rio Tinto) : 2.2Moz Gold, 1.5Mt Copper6
Wongoni – The Right Rocks
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Agnew, 2000. Magmatic / Hydrothermal
Cu-Au Deposits of the Lachlan Fold
Belt, NSW. Uni of Tas.
Northparkes
Cadia
Wongoni
Wongoni
� Geology – Tucklan Formation – GSNSW (Dubbo)
• Dark grey to black massive silicieous mudstone
• Three local members
• Basalt-andesite to dolerite, latite, chert, limestone
• Original assigned Devonian age
• GSNSW mapping (1990’s) identified Late Ordovician (Eastonian) fauna
• Prospectivity increased immediately
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Wongoni – Tucklan Beds
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Shoshonite
High K Calc Alk
Wongoni
Dunedoo
Northparkes Gravity
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Northparkes
Wongoni – The Right Gravity
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Wongoni
Dunedoo
Dubbo
Comobella - Alkane
BodangoraKaiser
Gilgandra
Mudgee
Cadia Valley Magnetics
12
Ridgeway
Cadia HillCadia East
The Right Magnetics
13
Magnetic targets on
margin of gravity low
→ Cadia seKng(?)Gravity Low
Wongoni
Dunedoo
Alteration – CRA/North drilling
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Kspar
Musc
Chl Albite
Wongoni – Magnetic Target
15151515
CRA Drillhole
North Drillhole
Chlorite
“Sericite”/Chlorite
“Sericite”
Albite
50m – pyrite
Intrusion!
HillviewBackground :
Regional Magnetics
2.5km
Gravity Low
Wongoni – The Right Alteration
16161616
2.5km
NaK
Chlorite
Muscovite/Chlorite
Muscovite
Albite
Gravity Low
Hillview
Background :Regional Magnetics
Wongoni – Hillview Prospect
13 - 138m 13 - 150m
14 - 146m13 - 147m
17171717
Alb-Qtz-Ser-Py
Alb-Qtz-Ser-Chl-Hm
Alb-Qtz-Ser-Py
Alb-Qtz-Ser-Py
Cadia East – Alteration
18181818
2.5km
Na
Wood, D., Crucial Challenges to Discovery and Mining, SEG 2012 Conference
Wongoni - Hillview Prospect (CRA)
� Geology• Andesite to dacite volcanics
and volcaniclastics,
• Lesser rhyolite, limestone & metasediments
• Intrusions : tonalite, dacite“porphyry”
� Mineralisation• Copper & gold
• Structurally controlled –diffuse zones and stringers
• Gold – confined to surface
� Alteration� 1992 : Honours thesis
• Albite and chlorite
• Carbonate – vein / disseminated
• Sericite quartz pyrite
� 2012 : Hylogger - GSNSW
• Kaolinite / Phengite → Phengite / Fe-Mg chlorite → Kaolinite / Muscovite
• Dickite
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Hillview Prospect
� CRA Ltd 1992� RC92HV6 - 6m @ 0.2% Cu from 70m
� RC92HV10 - 4m @ 0.5g/t Au from 6m
10m @ 0.19% Zn from 26m
� RC92HV11 - 10m @ 0.10% Cu from 4m
8m @ 0.26% Zn from 44m
� DD92HV12 - 1m @ 0.11% Cu from 61m
� DD92HV14 - 2m @ 0.15% Cu from 40m
� North Ltd 1998� Hillview
� Silica-sericite-pyrite alteration
� Elevated Zn & S
� HVRP17 (36m) 0-22m 22m @ 0.21% Zn
� HVRP1 (22m) 8-22m 14m @ 1.76% S
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HVRP1
HVRP17
RC92HV6RC92HV10
RC92HV11
DD92HV13
DD92HV12
DD92HV14
Porphyry Cu metal zonation
Halley, 2013. “Exploration Footprints”,
MDRU Short course 71, Vancouver
Porphyry Cu “footprint”1km
Background :Potassium Radiometrics
Bismuth
Antimony
Antimony
Wongoni - Summary
� Historic small scale Copper producer
� Limited modern exploration
� Previous explorers focused on shallow mineralisation
� Under explored Cadia host rock sequence
� Porphyry Gold-Copper alteration system - “advanced argillic”
� Alteration / geochemistry is zoned → vector to porphyry
Gold-Copper mineralisation
� Shallow cover (<100m) barrier to previous exploration
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