1 Meeting carbon budgets - challenges and opportunities for Wales September 2015 Dr. Ute Collier.
Copper opportunities in New South Wales
Transcript of Copper opportunities in New South Wales
CuJ U LY 2 0 1 7
CopperOpportunities in New South Wales, Australia
To Adelaide
A.C.T.
Q U E E N S L A N D
V I C T O R I A
SO
UT
H A
US
TR
AL
I A
New EnglandOrogen
LachlanOrogen
Murray Basin
Delamerian OrogenCurnamonaCraton
Thomson Orogen
The PeakThe Peak
CSACSA
Cadia ValleyOperations
Cadia ValleyOperations
Tritton operationsTritton operations
NorthparkesNorthparkes
EndeavorEndeavor
ConradConrad
Copper HillCopper Hill
GrasmereGrasmere
PinnaclesPinnacles
BushrangerBushranger
Mallee BullMallee BullMineral HillMineral Hill
WoodlawnWoodlawn
YeovalYeoval
NymageeNymagee
Peak HillPeak Hill
Temora porphyry districtTemora porphyry district
TottenhamTottenham
Lewis PondsLewis Ponds
MarsdenMarsden
Mudgee
DUBBO
Wentworth
Cobar
ORANGE
WOLLONGONG
Nyngan
Walgett
Coonamble Gunnedah
Parkes
Broken Hill
Narrabri
Inverell
Young
Cowra
Goulburn
Griffith
NOWRA
Batemans Bay
Narooma
Bega
Cooma
Moree
WAGGAWAGGA
ALBURY
Grafton
Yamba
Ballina
LISMORE
NEWCASTLE
Balranald
Deniliquin
TibooburraLightning Ridge
Eden
BATHURST
PORT MACQUARIE
COFFS HARBOUR
Kempsey
Taree
Muswellbrook
Bourke
TAMWORTH
Armidale
SYDNEY
CANBERRA
* Total contained commodity
CSA
Conrad
REFERENCE
Cu occurrence<500 t Cu*500 t to 10 000 t Cu*10 000 t to 50 000 t Cu*>50 000 t Cu*Operating mineProjectExport portRailway Major road, sealedMajor road, unsealedGas pipeline
200 km
N
Overview
• New South Wales has a copper endowment (past production and identified resources) exceeding 20.3 million tonnes.
• Copper is either the principal commodity or a significant credit in a diverse range of deposits.
• The state remains under-explored, with a range of opportunities for new discoveries.
Deposit types
New South Wales (NSW) has a diverse range of copper-rich deposits where copper is produced as either the principal commodity (e.g. Northparkes, CSA, Tritton) or as a concentrate with significant copper credits. These copper-enriched systems include:
• Porphyry Cu–Au deposits and related skarn deposits, including the world class Cadia Au–Cu system (Cadia East and Ridgeway mines) and the Northparkes, Copper Hill and Temora Cu–Au districts
• Copper-rich volcanic associated massive sulfide (VAMS) deposits hosted by deep marine basins, including the world class Woodlawn Kuroko-style deposit and the deposits in the Tritton–Girilambone Besshi-style district (Tritton operations)
• Orogenic base-metal deposits including the ‘Cobar’-type Cu-dominant (CSA) and Au–Cu (The Peak) mines, with a distinctive feature of many such deposits being the vertical extent and continuity of individual ore lenses
• High and intermediate sulfidation epithermal Au–Cu systems such as Peak Hill and Mineral Hill — some of which are associated with copper-rich porphyry systems
• Significant copper in some Broken Hill-type base metal deposits (Pinnacles — Curnamona Craton) and in a number of intrusion-related polymetallic systems (Conrad).
www.resourcesandenergy.nsw.gov.au
Copper production in New South Wales (1987–2016)
50 000
100 000
0
150 000
200 000
250 000
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2015
Cadia start-up
Global Financial Crisis
Cadia Eaststart-up
Northparkes start-up
Tritton start-upTo
nnes
Financial year (ending 30 June)
Mineral Hillrecommissioned
2016
Prospective terranes
Lachlan Orogen
The mainly Ordovician to Carboniferous Lachlan Orogen is, in general, poorly explored for copper. Recent exploration has focussed on the large to very large porphyry Cu–Au systems associated with the Macquarie Arc — several belts of volcanic-dominated rocks of Ordovician to Early Silurian age which host the world class Cadia deposits. In addition, the Lachlan Orogen contains many small to large copper-rich deposits associated with Ordovician and Silurian back-arc basins (VAMS-type deposits) and the late Silurian to Early Devonian Cobar Basin (‘Cobar-type’ orogenic sulfide-rich Cu ± Au deposits — e.g. CSA). Other targets include:
• Cu-rich skarns, high and intermediate sulfidation epithermal deposits
• orogenic sulfide-rich deposits associated with major structures — some of which have been major producers in the past and
• Devonian-age intrusion-related copper-rich systems associated with units of the Boggy Plain Supersuite (e.g. the Yeoval porphyry Cu deposit).
New England Orogen
The Devonian to Triassic New England Orogen is under-explored by Australian standards. The orogen is host to copper-rich volcanic associated massive sulfide deposits and polymetallic intrusion-related deposits, some of which also contain significant copper. There are also a number of poorly explored porphyry Cu–Au–Mo systems of Permo–Triassic age.
Other areas
There is further significant potential for copper-rich deposits in the following areas:
• The northern extension of the Lachlan Orogen — where it is covered by younger sequences (potential for porphyry Cu–Au and ‘Cobar-type’ orogenic sulfide-rich deposits)
• The Neoproterozoic to early Palaeozoic Koonenberry Belt (now interpreted to be a Cambrian Arc built on the rifted margin of Gondwana), which hosts VAMS-type mineralisation including the Grasmere deposit
• Along the edge of the Palaeoproterozoic Broken Hill Block, where there is untested potential for porphyry Cu–Au mineralisation.
Copper endowment (past production + resources) for NSW, classified by deposit type
Total endowment >20.3 Mt; current resources >16 Mt
Skarn
VAMS
Orogenic base metal
Porphyry
Other incl. epithermal, intrusion-related & SEDEX
1.5%7.2%
11.5%
78.8%
1.0%
Table continued on back.
Summary of significant copper resources within NSW
Mine nameDeposit type Current resources and reserves (JORC)
Containedcopper (‘000 t)
Cadia Valley OperationsPorphyry Cu-Au
Cadia East: (probable) 1500 Mt @ 0.48 g/t Au, 0.28 % CuCadia East:(global resource) 3000 Mt @ 0.38 g/t Au, 0.26% Cu
7800
CSAOrogenic base metal
(proved & probable): 5.7 Mt @ 4.12% Cu, 17.5 g/t Ag(measured & indicated): 5.7 Mt @ 5.67% Cu, 24.1 g/t Ag(inferred): 6.3 Mt @ 5.5% Cu, 21 g/t Ag
664
EndeavorSEDEX
(proved & probable) 7.6 Mt @ 7.6% Zn, 4.9% Pb, 98 g/t Ag, 0.2% Cu(global resource) 26.2 Mt @ 6.7% Zn, 4.1% Pb, 62 g/t Ag, 0.18% Cu
47
NorthparkesPorphyry Cu-Au
(proved & probable) 102.28 Mt @ 0.6% Cu, 0.26 g/t Au, 2.21 g/t Ag(global resource) 497.86 Mt @ 0.56% Cu, 0.18 g/t Au, 1.75 g/t Ag
2788
The PeakOrogenic base metal
(proved & probable) 2.87 Mt @ 2.89 g/t Au, 6.9 g/t Ag, 1.29% Cu(measured & indicated) 4.1 Mt @ 3.37 g/t Au, 7.5 g/t Ag, 1.04% Cu(inferred) 2.0 Mt @ 3.14 g/t Au, 10.9 g/t Ag, 1.13% Cu
65
Tritton OperationsVAMS
Tritton Underground: (proved & probable) 6.37 Mt @ 1.7% CuTritton Underground: (measured, indicated & inferred) 11.24 Mt @ 1.5% Cu
169
Murrawombie: (probable) 4.041 Mt @ 1.3% Cu (open cut & underground)Murrawombie: (indicated & inferred) 8.04 Mt @ 1.4% Cu
113
Avoca Tank: (probable) 0.68 Mt @ 2.5% Cu, 0.8 g/t AuAvoca Tank: (indicated & inferred) 0.90 Mt @ 2.6% Cu, 0.8 g/t Au
23
Project nameDeposit type
BushrangerPorphyry Cu–Au
(indicated) 25 Mt @ 0.4% Cu(inferred) 28 Mt @ 0.3% Cu
184
Cadia Valley Operations (care and maintenance)Porphyry Cu-Au
Ridgeway: (probable) 82 Mt @ 0.54 g/t Au, 0.28% Cu (care and maintenance)Ridgeway: (global resource) 150 Mt @ 0.51 g/t Au, 0.33% Cu
495
Other (Cadia Hill etc.): (proved & probable) 90 Mt @ 0.5 g/t Au, 0.14% CuOther (Cadia Hill etc): (global resource) 310 Mt @ 0.43 g/t Au, 0.16% Cu
496
ConradIntrusion-related
(indicated & inferred) 2.65 Mt @ 105.3 g/t Ag, 0.20% Cu, 1.33% Pb, 0.53% Zn, 0.22% Sn, 6.8 g/t In
5.3
Copper HillPorphyry Cu–Au
(global resource) within pit shell 153 Mt @ 0.32 % Cu, 0.27 g/t Au, and an additional62 Mt @ 0.28% Cu, 0.18 % Au outside pit shell
663
GrasmereVAMS
(indicated & inferred) 5.75 Mt @ 1.03% Cu, 0.35% Zn, 2.3 g/t Ag, 0.05 g/t Au 59
Lewis PondsVAMS
(indicated) 6.35 Mt @ 2.4 % Zn, 0.2% Cu, 1.4% Pb, 1.5% Au, 68 g/t Ag(inferred) 0.27 Mt @ 3% Zn, 0.1% Cu, 1.9% Pb, 1.1 g/t Au, 96 g/t Ag
13
Mallee BullOrogenic base metal
(indicated & inferred) 3.92 Mt @ 2.3% Cu, 32 g/t Ag, 0.3 g/t Au 90
MarsdenPorphyry Cu–Au
(indicated & inferred) 230 Mt @ 0.17 g/t Au, 0.34% Cu 782
Mineral Hill (care and maintenance)Epithermal
Parkers Hill: (indicated & inferred (oxide): 1.1 Mt @ 0.9% Cu, 3.7% Pb, 0.4% Zn, 70 g/t AgParkers Hill: (indicated & inferred (sulfide): 1.178 Mt @ 1.8% Cu, 1.3% Pb, 38 g/t Ag, 0.3 g/t AuSOZ (H Lode): (global resource) 0.104 Mt @ 1.0% Cu, 0.02% Pb, 0.01% Zn, 1.8 g/t Au, 4 g/t AgSOZ (G Lode): (global resource) 0.339 Mt @ 1.3% Cu, 0.02% Pb, 0.03% Zn, 2.1 g/t Au, 4 g/t AgSOZ (A Lode): (global resource) 0.523 Mt @ 3% Zn, 3.6% Pb, 0.9% Cu, 1.3 g/t Au, 37 g/t AgRed Terror: (global resource) 0.186 Mt @ 1.7% Cu, 0.1% Pb, 0.3% Zn, 2.2 g/t Ag, 2.4 g/t Au
44
NymageeOrogenic base metal
(indicated & inferred) 8.1 Mt @ 1.20% Cu, 0.30% Pb, 0.70% Zn, 9 g/t Ag 97
Temora porphyry districtPorphyry Cu–Au
(indicated & inferred) 279 Mt @ 0.3% Cu, 0.2 g/t Au 837
TottenhamVAMS
Carolina: (indicated & inferred) 3.39 Mt @ 1.5% CuMt Royal: (indicated & inferred) 3.6 Mt @ 0.9% Cu
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www.resourcesandenergy.nsw.gov.au
Further information
The Advanced Mineral Projects & Exploration Highlights in NSW Map summarises recent exploration activities and ore reserve/resource announcements. This map is updated every six months and is available at www.resourcesandenergy.nsw.gov.au
Project nameDeposit type Current resources and reserves (JORC)
Containedcopper (‘000 t)
WoodlawnVAMS
Underground: (probable) 2.8 Mt @ 5.5% Zn, 1.6% Cu, 1.9% Pb, 0.45 g/t Au, 42 g/t AgUnderground: (measured & indicated) 4.1 Mt @ 7.2% Zn, 2.0% Cu, 2.6% Pb, 0.52 g/t Au, 55 g/t AgUnderground: (inferred) 2.5 Mt @ 5.9% Zn, 1.8% Cu, 2.3% Pb, 0.61 g/t Au, 47 g/t AgReclaimed tailings: (proved & probable) 9.5 Mt @ 2.2% Zn, 0.5% Cu, 1.3% Pb, 0.31 g/t Au, 31 g/t AgReclaimed tailings: (measured & indicated) 9.8 Mt @ 2.3% Zn, 0.51% Cu, 1.3% Pb, 0.31 g/t Au,
32 g/t AgReclaimed tailings: (inferred) 1.1 Mt @ 2.3% Zn, 0.47% Cu, 1.2% Pb, 0.25 g/t Au, 27 g/t Ag
182
YeovalPorphyry Cu–Au
(inferred) 12.9 Mt @ 0.38% Cu, 0.14 g/t Au, 120 g/t Mo, 2.2 g/t Ag 49PR
OJ
EC
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Top left: Circuit board with copper components.
Bottom left: Ore processing mill at Northparkes, near Parkes.
Right: Tightly folded copper-rich (malachite) ore from the Murrawombie pit near Nyngan.
Contact: [email protected] | +61 2 4931 6689
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