Overview
Stage | Production |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Production Start | ... |
Mt Webber incorporates two mining areas: Fender and Daltons. Daltons pit is in its final two stages with mining expected to recommence in Fender pit mid-2023. |
Source:
p. 17
The Mt Webber mine is 100% owned by Atlas Iron Limited.
Atlas Iron Limited was acquired by Hancock Prospecting Pty Ltd, through its wholly-owned subsidiary Redstone Corporation Pty Ltd in December 2018.
Contractors
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Summary:
The Mount Webber Project consists of three deposits:
• Gibson/Daltons – one deposit split on a tenement boundary;
• Fender – located to the southwest on the same banded iron formation (BIF) unit as Gibson/Daltons; and
• Ibanez – located slightly to the west of Gibson on a parallel BIF outcrop.
The Project is located within the Archaean age Granite greenstone terrane of the Pilbara Craton, with the deposits occurring within the Gorge Creek and Sulphur Springs Groups of the Pilbara Supergroup (Slomp, 2017). Complex folding and faulting have resulted from the deposits being located between two large granitoid complexes – the Shaw Granitoid Complex to the east and the Yule Granitoid Complex to the west (Hermawan, 2013).
The deposits are hosted within the Pincunah Banded Iron Member (Hickman, 2013) of the Kangaroo Caves Formation. The Pincunah Banded Iron Member comprises red-black BIF, chert, tuff, siltstone and shale and is unconformably underlain by the Warrawoona Group mafic and ultramafic lithologies. The BIF and chert of the Pincunah Banded Iron Member form steep-sided ridges with flat-topped summits. The Pincunah Banded Iron Member has been informally divided into Upper and Lower BIF units separated by a thin chert unit.
One dolerite intrusive has been identified in the Fender deposit that cuts the entire sequence, but this has had no apparent effect on the mineralisation.
Mineralisation
The mineralisation has ........
Summary:
Mt Webber incorporates two mining areas: Fender and Daltons. Daltons pit is in its final two stages with mining expected to recommence in Fender pit mid-2023.
The mining approach to the Mount Webber deposit is by conventional open pit mining methods using drill and blast methods. Mined material is mined in 6 m-high benches. The blasted rock is loaded across two 3 m-high flitches by backhoe excavators into rigid body trucks.
The contractor provides the mining and processing equipment, completes operations and maintenance activities. The mining of ore at Mt Webber is contracted to BGC Contracting Pty Ltd (now NRW Contracting Pty Ltd).
Ore and waste is differentiated through grade control practices and ore is trucked to the run-of mine (ROM) stockpile. Ore is segregated into grade categories, namely:
• H0 - +60% Fe
• H1 – 57.5 to 60% Fe
• H2 – 55 to 57.5% Fe (Ibanez and Fender)
• H2 – 53.5 to 57.5% Fe (Gibson/Daltons)
• H3 – 53.5 to 55% Fe (Ibanez and Fender)
• H3 – 50 to 53.5% Fe (Gibson/Daltons).
Material is classified as waste when the grade is below 53.5% Fe for Ibanez and Fender and below 50% Fe for Gibson/Daltons.
The LOM strip ratio is 1 : 0.32 (ore t : waste t).
Source:
Source:
Summary:
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Source:
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Reserves at December 1, 2018:
Mineral resources: cut-off 50% Fe
Ore reserves: cut-off 50%-53.5% Fe
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade |
Proven & Probable
|
30,000 kt
|
Iron
|
57.6 %
|
Measured
|
23,200 kt
|
Iron
|
58.6 %
|
Indicated
|
13,300 kt
|
Iron
|
56.2 %
|
Inferred
|
1000 kt
|
Iron
|
56.9 %
|
Commodity Production Costs:
| Commodity | Units | 2018 |
C1 cash costs
|
Iron Ore
|
AUD
|
39.3 / wmt
|
All-in costs
|
Iron Ore
|
AUD
|
57.6 / wmt
|
Financials:
| Units | 2020 | 2019 |
Revenue
|
M AUD
| ...... |
......
|
After-tax Income
|
M AUD
| ...... |
......
|
Operating Cash Flow
|
M AUD
| ...... |
......
|
Corporate Filings & Presentations:
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