• 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
Rocklands Mine

This page is not tailored to
devices with screen width under 750 px.
 Location:
15 km W from Cloncurry, Queensland, Australia

  Address:
Corella Park Road
Cloncurry
Queensland, Australia
4824
Phone  ...  Subscription required
Fax(617) 4742 4898
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
  • 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

StatusTemporary Suspension
Mine TypeOpen Pit
Commodities
  • Copper
  • Cobalt
  • Gold
  • Magnesium
Mining Method
  • Truck & Shovel / Loader
Processing
  • Gravity separation
  • Flotation
  • Magnetic separation
Mine Life10 years (as of Jan 1, 2016)
The Company suspended operations on 31 August 2018.
Latest NewsCuDeco Limited: Production Resumes at Rocklands     December 18, 2017


Owners

 
CompanyInterestOwnership
CuDeco Ltd. 100 % Direct

Deposit Type

  • Sedimentary


Summary:

Hosted within metamorphosed meso-Proterozoic age volcano-sedimentary rocks and intrusive dolerites of the Eastern Fold Belt of the Mt Isa Inlier. Dominated by dilational brecciated shear zones containing coarse patchy to massive primary mineralisation, with high-grade supergene chalcocite enrichment and bonanza-grade coarse native copper in oxide. Structures hosting mineralisation are sub-parallel, east-southeast striking and steeply dipping. The observed mineralisation, and alteration, exhibit ffinities with Iron Oxide-Copper-Gold (IOCG) style deposits. Polymetallic copper-cobalt-gold mineralisation, and significant magnetite, persists from the surface, through the oxidation profile, and remains open at depth.

The Rocklands copper-cobalt-gold mineralisation is hosted in a series of subparallel, east south east trending, steeply dipping zones. Mineralised lodes occur within a metamorphosed sedimentary succession of siltstone, sandstone/quartzite, quartz magnetite/jaspilite lenses, calcareous beds and calc-silicates of Proterozoic age. Copper is the dominant mineralisation at Rocklands, lesser amounts of cobalt and gold. Copper mineralisation extends from surface to depth with overlapping oxide, secondary and primary styles of copper mineralisation. Mineralisation appears to be associated with and controlled by steeply dipping, west northwest trending, linear, structures that cut the shallow dipping metasedimentary sequence at a high angle.

Copper mineralisation extends from surface and is open at depth with overlapping oxide, secondary and primary styles. Primary sulphide mineralisation occurs at the base of a thick secondary mineralisation sequence of native copper and chalcocite with a minor complete oxidation zone.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The planned mining method for Rocklands is a conventional open pit truck and shovel operation, using 180t and 190t class hydraulic excavators, in backhoe configuration, and 90t dump trucks. Drilling and blasting is conducted on 10 m high benches. Digging is conducted on flitches of 2.5 m height in the ore and up to 5 m high in bulk waste blocks. CuDeco currently owns and operates its own Mining fleet. Proposals for a ‘Dry Hire’ Leased Fleet have been sought and are currently being assessed to compare costs with current fully owned and maintained fleet.


Crushing and Grinding


Processing

  • Gravity separation
  • Flotation
  • Magnetic separation

Source: Subscription required

Summary:

The Fixed Crushing Plant was initially installed with the following equipment:
- Grizzly screen
- Jaw crusher
- Two rolls crushers
- Various screens and conveyors.

The Process Plant installed at Rocklands consists of:
- A high pressure grinding roll (HPGR)
- A rotary scrubber (de-agglomerator)
- Classifying screens
- Jigging circuit, consisting of coarse, intermediate and fine jig circuits
- Spiral separation, consisting of rougher and scavenger spirals
- Table separation, consisting of rougher and cleaner tables
- Two belt filters, to filter fine native copper product from spirals and tables
- Five thickeners (gravity, copper concentrate, pyrite (cobalt) concentrate, magnetite concentrate and tailings thickeners)
- Ball mill and cyclones
- Copper flotation, consisting of roughing, regrinding, cleaning, scavenging and re-cleaning
- Pyrite (cobalt) flotation, consisting of roughing, cleaning and re-cle ........

Recoveries & Grades:

CommodityParameter2017
Copper Recovery Rate, %  ......  Subscription required
Copper Head Grade, % 1.07
Subscription required - Subscription is required.

Production:

CommodityUnits2017
Copper t 26,956
All production numbers are expressed as metal in concentrate.

Operational Metrics:

Metrics20172016
Ore tonnes mined 843,908 t
Tonnes processed 897,388 t
Annual processing capacity 3 Mt

Reserves at December 31, 2017:

CategoryTonnage CommodityGradeContained Metal
Measured 38.4 Mt Copper 0.66 % 558 M lbs
Measured 38.4 Mt Cobalt 305 g/t
Measured 38.4 Mt Gold 0.14 g/t 174 koz
Measured 38.4 Mt Magnesium 5.5 %
Indicated 16.3 Mt Copper 0.59 % 213 M lbs
Indicated 16.3 Mt Cobalt 255 g/t
Indicated 16.3 Mt Gold 0.16 g/t 86 koz
Indicated 16.3 Mt Magnesium 4.3 %
Inferred 0.6 Mt Copper 0.6 % 8 M lbs
Inferred 0.6 Mt Cobalt 232 g/t
Inferred 0.6 Mt Gold 0.21 g/t 4 koz
Inferred 0.6 Mt Magnesium 2.7 %

Financials:

Units2017
Revenue M AUD 79.6  
Gross profit M AUD -6.43  
After-tax Income M AUD -135.58  


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 25, 2021
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Press Release 2018
Annual Report 2017
Financial Review 2017
Feasibility Study Report 2016
Subscription required - Subscription is required.

News:

NewsDate
CuDeco Limited: Production Resumes at Rocklands December 18, 2017

Aerial view:

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2020 MDO Data Online Inc.