• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Australia
Cadia PC2-3 Expansion Project (Cadia Valley Operation)

This page is not tailored to
devices with screen width under 750 px.
 Location:
22 SW from Orange, New South Wales, Australia

  Project Contacts:
1460 Cadia Rd, Cadia
South Orange
New South Wales, Australia
2800
Phone  ...  Subscription required
Fax+61-02-6366-4333
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Australia
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageConstruction
Mine TypeUnderground
Commodities
  • Gold
  • Copper
  • Silver
  • Molybdenum
Mining Method
  • Block caving
Production Start...
Mine Life45 years (as of Jan 1, 2018)
Cadia is currently undergoing an expansion project which is expected to help it retain its industry-leading position as one of the largest, lowest-cost and longest-life gold/copper mines in the world.

The Cadia Expansion Project consists of:
– development of the next panel cave, Panel Cave 2-3 (PC2-3);
– increasing the plant processing capacity from 32Mtpa to 35Mtpa;
– delivering life-of-mine gold and copper recovery improvements; and
– reducing unit costs.

First ore from PC2-3 is expected during the first half of FY23 with the upgraded plant facilities operational by the December 2022 quarter. Mill throughput rates are expected to start ramping up towards 35Mtpa in the December 2022 quarter.


Owners

Source: p. 17,171
CompanyInterestOwnershipInvestor's Info
Newcrest Mining Ltd. 100 % Indirect

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Vein / narrow vein
  • Porphyry
  • Breccia pipe / Stockwork


Summary:

Mineralisation in the porphyry deposits occurs as sheeted and stockwork quartz–sulphide veins, and locally as broadly stratabound disseminated mineralisation (Cadia East) and skarn (Big Cadia and Little Cadia).

The Cadia district porphyry deposits have recorded a sequence of alteration and mineralisation events that evolved from early-stage magnetite-stable sodic, potassic and calc-potassic alteration with locally significant gold–copper mineralisation, through a period of transitional stage potassic alteration that introduced most of the gold–copper mineralisation. Propylitic and calc- silicate alteration were developed in the deposit peripheries at this time and a late stage of feldspathic alteration developed irregularly around the deposit margins and locally destroyed mineralisation.

The Cadia East–Far East deposit occupies a mineralised zone 2.5 km in strike length, 600 m in width and over 1,900 m in vertical extent. It is located below and to the east of the Cadia Hill deposit.

Mineralisation is developed in the Forest Reef Volcanics (FRV), and in a series of subvertical to steeply northdipping monzodioritic to quartz monzonitic dykes, that are termed the Cadia Far East intrusive complex (CFEIC). The syn-mineral nature of at least some of the intrusions is indicated by the presence of mineralised xenoliths within monzonite porphyry dykes that also host porphyry- style veining and alteration.

The Weemalla Formation has be ........


Mining Methods

  • Block caving


Summary:

The current operations are planned as a series of three lifts (Lifts 1, 2, and 3). The relative elevation of these lifts and all underground infrastructure is expressed in mine height datum which is 5,000 m above AHD (i.e. 5,900 m mine Relative Level (RL) is equivalent to 900 m AHD). Lifts 1 and 2 are approximately 1,200–1,400 m high with their bases located at approximately 4650 mRL and 4450 mRL. Lift 3 sits below Lift 2 with a block height of 275 m and a base at the 4,175 mRL. Lift 1 refers to the following panel caves: PC1–1, PC1–2, PC1–4, PC5001. Lift 2 refers to the following panel caves: PC2, PC2–3, PC2–4 and PC2–5. Lift 3 refers to the following panel cave: PC 3–1.

Cadia East is accessed via two declines, the main access decline, and the conveyor decline.

The mining method involves inducing caving of the rock mass by undercutting a block of ore. Mining proceeds by progressively advancing an “undercut” level beneath the block of ore. Above the undercut level, the overlying host rocks are pre-conditioned using blasting and/or hydraulic fracturing, resulting in controlled fracturing of the ore block.

Following pre-conditioning of the overlying host rocks, broken ore is removed through an extraction level developed below the undercut level. The extraction level is connected to the undercut level by drawbells, through which the ore gravitates to drawpoints on the extraction level. The ore is removed by a load–haul–dump (LHD) fleet to ........


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold koz 34415,471
Copper kt  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate.

Operational Metrics:

Metrics
Ore tonnes mined 1,366 Mt *
Annual processing rate 33 Mt *
Annual ore mining rate 33 Mt *
* According to 2018 study.

Reserves at June 30, 2022:
Cut-Off Assumptions Cadia East Underground: Mineral Resource Net Smelter Return (NSR) of approx. A$18.00/t milled; Ore Reserve NSR of approx. A$22.11/t milled.

CategoryTonnage CommodityGradeContained Metal
Probable 1,200 Mt Gold 0.42 g/t 16 M oz
Probable 1,200 Mt Copper 0.29 % 3.5 Mt
Probable 1,200 Mt Silver 0.7 g/t 27 M oz
Probable 1,200 Mt Molybdenum 82 ppm 0.099 Mt
Indicated 2,600 Mt Gold 0.35 g/t 30 M oz
Indicated 2,600 Mt Copper 0.26 % 6.8 Mt
Indicated 2,600 Mt Silver 0.65 g/t 55 M oz
Indicated 2,600 Mt Molybdenum 66 ppm 0.17 Mt
Inferred 500 Mt Gold 0.24 g/t 3.8 M oz
Inferred 500 Mt Copper 0.17 % 0.85 Mt
Inferred 500 Mt Silver 0.47 g/t 7.5 M oz
Inferred 500 Mt Molybdenum 25 ppm 0.012 Mt

Commodity Production Costs:

CommodityUnitsAverage
All-in sustaining costs (sold) Gold USD 30 / oz *†  
Assumed price Copper USD 3 / lb *  
Assumed price Gold USD 1,250 / oz *  
* According to 2018 study / presentation.
† Net of By-Product.

Operating Costs:

Units2018
Total operating costs ($/t milled) USD 11.8 *
* According to 2018 study.

2018 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 2, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 2, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Quarterly Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Press Release 2018
Technical Report 2011
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.