Mining Intelligence and News
Austria

Robe Mesa Project

Click for more information
Australia

Robe Mesa Project

Location: 94 km E from Onslow, Western Australia, Austria

Project Contacts:

Level 3, 47 Havelock St West Perth
PO Box 16
Perth
Western Australia, Australia
6005

Contacts:

Additional Resources for Suppliers & Investors

Categories

Overview

Mine TypeOpen Pit
StagePermitting
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Mine Life... Lock
SnapshotThe Robe Mesa iron ore deposit is a part of the Yarraloola project. The Robe Mesa project is a simple, low strip ratio, Direct Shipping Ore (DSO) mining operation.

The 2023 Definitive Feasibility Study (DFS) production schedule mines high-grade and low-grade iron ore throughout the life of mine but only processes high-grade for the first 4 years, with low-grade stockpiled. Processing throughput increases after year 4, with the inclusion of the low-grade ore. Both products will be sold separately but there will be opportunities to blend both products to smooth grade variation over the life of mine.

CZR continues to work with environmental regulators to finalise the permits required to commence construction and operations on site.

Owners

SourceSource
CompanyInterestOwnership
CZR Resources Ltd. 85 % Indirect
CZR Resources has an 85% interest in the Yarraloola JV through Zanthus and Mr Creasy holds 15% through ZanF, free-carried until completion of the DFS. The Yarraloola Joint Venture covers all tenements associated with the Robe Mesa iron ore deposit.

On 11 January 2024 CZR announced it had entered into a binding Share Sale Agreement for the sale of Zanthus Resources Pty Ltd., a wholly owned subsidiary that controls an 85% interest in the Robe Mesa Iron Ore Project, to Miracle Iron Resources Pty Ltd (Miracle Iron) for $102 million.

Contractors

Lock

- subscription is required.

SourceSource

Deposit type

  • Channel Iron (CID)

Summary:

The Robe Mesa Orebody is classified as a Channel Iron Deposit (CID). These deposits are considered as ‘secondary’ as they have formed through erosion and transport and reconsolidation processes rather than an in-situ enrichment of an iron-rich protolith.

Robe Mesa is part of the Robe River paleochannel, which is a tertiary-aged channel. The paleochannel is delineated by a series of flat-topped hills that are locally called ‘mesas’.

The Mesa contains two cycles of deposition, and each has a sharp basal contact that shows an upwards increase in the number of iron-rich fragments.

The Robe Mesa deposit occurs as two mineralised CID horizons of flat-lying pisolitic iron-stone that are each up to 25 m thick and separated by up to 20 m of ferruginous silt and sandstones. These CID horizons contain goethite as the dominant iron ore mineral. High-grade mineralisation is typically sourced from the MCU and MCL units, with the MMU and MML units representing a more poorly sorted and lower-grade pisolitic ironstone

The Robe Mesa is a fluvial deposit of goethite-rich fragments of wood and pisolites supported by a fine grained goethitic matrix. The deposit outlines the trace of a Tertiary-aged channel from the Robe River into older rocks of the Ashburton Formation that have since eroded.

Dimensions
The Robe Mesa deposit has a total strike length of 1700 m (which is limited by the extent of the lease to the south and areas of heritage clearance to the north). Mineralisation extends to the north and the south. It has an across strike width of 800 m and extend vertically for approximately 70 m below surface.

Reserves

Lock

- subscription is required.

Mining Methods

Lock

- subscription is required.

Comminution

Crushers and Mills

Lock

- subscription is required.

Processing

Lock

- subscription is required.

Production

Production rate commencing at 3.5 Mtpa for the first 4 years then increasing to 5 Mtpa as export capacity becomes available – initial 8-year mine life.
CommodityUnitsAvg. AnnualLOM
Iron Ore Mt 3.533
All production numbers are expressed as fines.

Operational metrics

Metrics
Hourly processing capacity  ....  Subscribe
Stripping / waste ratio  ....  Subscribe
Waste tonnes, LOM  ....  Subscribe
Ore tonnes mined, LOM  ....  Subscribe
Total tonnes mined, LOM  ....  Subscribe
* According to 2023 study.

Production Costs

CommodityAverage
All-in sustaining costs (AISC) Iron Ore  ....  Subscribe
C1 cash costs Iron Ore  ....  Subscribe
Assumed price Iron Ore  ....  Subscribe
* According to 2023 study / presentation.

Operating Costs

CurrencyAverage
OP mining costs ($/t milled) AUD  ....  Subscribe
Processing costs ($/t milled) AUD  ....  Subscribe
* According to 2023 study.

Project Costs

MetricsUnitsLOM Total
Pre-Production capital costs $M AUD  ......  Subscribe
Sustaining CapEx $M AUD  ......  Subscribe
Total CapEx $M AUD  ......  Subscribe
OP OpEx $M AUD  ......  Subscribe
Processing OpEx $M AUD 137
Transportation (haulage) costs $M AUD 636
G&A costs $M AUD 275
Total OpEx $M AUD  ......  Subscribe
Income Taxes $M AUD  ......  Subscribe
Royalty payments $M AUD  ......  Subscribe
Gross revenue (LOM) $M AUD  ......  Subscribe
EBITDA (LOM) $M AUD  ......  Subscribe
Pre-tax Cash Flow (LOM) $M AUD  ......  Subscribe
After-tax Cash Flow (LOM) $M AUD  ......  Subscribe
Pre-tax NPV @ 8% $M AUD  ......  Subscribe
After-tax NPV @ 8% $M AUD  ......  Subscribe
After-tax IRR, %  ......  Subscribe
After-tax payback period, years  ......  Subscribe

Required Heavy Mobile Equipment

Lock

- subscription is required.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 10, 2023
....................... Subscription required ....................... Subscription required Subscription required Feb 7, 2025
....................... Subscription required ....................... Subscription required Subscription required Feb 7, 2025

EmployeesContractorsTotal WorkforceYear
...... Subscription required ...... Subscription required ...... Subscription required 2023

Aerial view:

Lock

- subscription is required.