Overview
Stage | Production |
Mine Type | Open Pit & Underground |
Commodities |
|
Mining Method |
- Truck & Shovel / Loader
- Sub-level caving
- Longhole open stoping
|
Production Start | ...  |
Mine Life | 2025 |
Telfer is comprised of the Main Dome, West Dome open pits and underground mines and produces gold and copper via a large, dual train, comminution circuit followed by flotation and cyanide circuits, which produce gold doré and a copper-gold concentrate.
Telfer mine life further extended with West Dome Stage 8 approval. The mine now expected to extend operations into early FY25. First ore production in the West Dome Stage 8 was achieved during the December 2022 quarter with mining rates in the cutback performing above expectations in FY23.
The longer-term future of Telfer beyond FY26 is based on underground mining of multiple projects, including the Havieron project and multiple near Telfer opportunities. Havieron is a proposed greenfield copper-gold mine located 45 km from Telfer. The project is operated by Newcrest under a joint venture agreement with Greatland Gold plc (Greatland). The project is currently subject of an ongoing feasibility study. |
Source:
p. 12
Company | Interest | Ownership | Investor's Info |
Newmont Corp.
|
100 %
|
Indirect
|
|
The Telfer Project is owned and operated by Newcrest Mining Limited and its subsidiary, Newcrest Operations Limited.
On November 6, 2023, Newmont Corporation completed the acquisition of Newcrest Mining Limited to create the world’s leading gold company with robust copper production.
Contractors
- Subscription is required.
Deposit Type
- Intrusion related
- Breccia pipe / Stockwork
Summary:
The Telfer deposit and the group of tenements lie within the north-eastern portion of the Yeneena Basin, which is an irregular-shaped sedimentary basin that lies to the east of the Pilbara Craton, west of the Canning Basin, and north-east of the Savory Basin.
The Telfer gold-copper deposit is divided into the West Dome open pit operation and the Main Dome underground operation, including six upper M-Reefs, which form part of the Main Dome mineralization complex and consist of high-grade and narrow, bedding-concordant veins within the deposit.
The geology of the Telfer deposit area consists of a late Proterozoic sequence of marine sediments that have been weakly metamorphosed, structurally deformed by folding and faulting,, and locally intruded by granites.
The Telfer Dome is composed of sedimentary units from the Telfer Formation and the the Malu Quartzite Member. Gold and copper mineralization are hosted within both formations. The Telfer Formation is subdivided into seven units that include mostly sandstones and siltstones. The Malu Quartzite Member is conformably overlain by the Telfer Formation and subdivided locally into five main stratigraphic units, mainly quartz sandstones and altered sandstones. Weathering locally modified mineralization to depths typically up to 200 m, with the the boundary between oxide and primary mineralization being irregular.
The topography at the Telfer mine site is dominated by two large-scale asymm ........

Mining Methods
- Truck & Shovel / Loader
- Sub-level caving
- Longhole open stoping
Summary:
The Telfer operation is comprised of open pit mining at both Main Dome and West Dome and underground mining at Main Dome. Open pit mining is a conventional truck and hydraulic excavator operation. Underground selective and bulk long hole open stope mining methods are used for excavation of the high-grade reefs and Western Flanks respectively, while stockwork ore and waste are mined using sub level cave bulk mining methods. Underground sub level cave mining ore and Western Flanks bulk open stope ore is hoisted to the surface via a shaft.
Open pit mining occurs at the West Dome open pit, via multiple stages named stage 2, 4, 5, and 8. The operation utilises conventional truck and shovel mining on 12 m high benches. Most material mined requires blasting. The primary mining fleet comprises 530 t and 360 t class excavators and Caterpillar 793 (220 t) trucks. Mining is undertaken by a third-party open pit mining contractor under the direction and supervision of Newcrest. Current total material movement is 40 Mtpa, containing 20 Mtpa of ore.
Byrnecut undertake all underground mining activity on the site; from large scale sub-level caving operations to smaller narrow vein high grade reef stopes. The mine has made extensive use in the past of autonomously operated loaders tipping into ore-passes, with chute loaded trucks hauling material on a consolidated haulage level to the main crushing station. Ore is then hauled to surface by shaft. As the mine progresses de ........

Source:
Source:

- subscription is required.
Flow Sheet:
Summary:

- subscription is required.
Production:
Commodity | Product | Units | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
Gold
|
Metal in conc./ doré
|
oz
| ......  | ......  | ......  | ......  | ......  | 425,536 | 386,242 |
Copper
|
Metal in concentrate
|
M lbs
| ......  | ......  | ......  | ......  | ......  | ......  | ......  |
Silver
|
Metal in conc./ doré
|
koz
| ......  | ......  | ......  | ......  | ......  | ......  | ......  |
Copper
|
Concentrate
|
kt
| | | | | ......  | ......  | |
- Subscription is required.
Operational Metrics:
Metrics | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
Ore tonnes mined
| ......  | ......  | ......  | 17,481 kt | 21,923 kt | 20,321 kt |
Waste OP
| ......  | ......  | ......  | | | |
Total tonnes mined
| ......  | ......  | ......  | 55,107 kt | 59,581 kt | 44,293 kt |
Tonnes milled
| ......  | ......  | ......  | 16,209 kt | 22,734 kt | 23,026 kt |
- Subscription is required.
Reserves at June 30, 2023:
Mineral Resources Cut-Off Criteria: Telfer West Dome Open Pit - NSR of A$22.50/t milled; Telfer Stockpiles - NSR of A$22.50/t milled; Telfer Underground - Variable NSR of A$46.55/t - A$147.96/t milled; Havieron - Variable NSR of A$50.00/t - A$100.00/t milled; Satellites Deposits - 0.20g/t gold in oxide material and 0.56g/t gold for transitional and fresh material; Camp Dome - 0.13% copper based on dump leach processing; O'Callaghans - NSR of A$80.0/t milled applied to visible high grade mineralised skarn that has a minimum 5m height.
Ore Reserves Cut-Off Criteria: Telfer West Dome Open Pit - NSR of A$22.50/t milled; Telfer Stockpiles - NSR of A$22.50/t milled; Telfer Underground - Variable NSR of A$46.55/t - A$147.96/t milled; Havieron - NSR of A$130.00/t milled.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
40.6 M dmt
|
Gold
|
1.82 g/t
|
2.382 M oz
|
Proven & Probable
|
40.6 M dmt
|
Copper
|
0.25 %
|
0.1 Mt
|
Measured & Indicated
|
169.44 M dmt
|
Gold
|
1.06 g/t
|
5.8 M oz
|
Measured & Indicated
|
169.44 M dmt
|
Copper
|
0.29 %
|
0.49 Mt
|
Inferred
|
97.5 M dmt
|
Gold
|
1.12 g/t
|
3.505 M oz
|
Inferred
|
97.5 M dmt
|
Copper
|
0.21 %
|
0.2 Mt
|
Source:

- subscription is required.
HME Type | Model | Quantity | Leased or Contractor | Ref. Date |
Dozer
|
.......................
|
|
|
Oct 23, 2023
|
Drill
|
.......................
|
.......................
|
|
Oct 27, 2022
|
Drill
|
.......................
|
.......................
|
|
Oct 27, 2022
|
Drill
|
.......................
|
.......................
|
|
Oct 27, 2022
|
Excavator
|
.......................
|
|
|
Oct 23, 2023
|
Excavator
|
.......................
|
|
|
Oct 23, 2023
|
Excavator
|
.......................
|
|
|
Oct 23, 2023
|
Grader
|
.......................
|
|
|
Oct 23, 2023
|
Loader
|
.......................
|
.......................
|
|
Oct 27, 2022
|
Loader (FEL)
|
.......................
|
|
|
Oct 23, 2023
|
Truck (dump)
|
.......................
|
|
|
Oct 23, 2023
|
Truck (haul)
|
.......................
|
|
|
Oct 23, 2023
|
Truck (underground)
|
.......................
|
.......................
|
|
Oct 27, 2022
|
- Subscription is required.
Corporate Filings & Presentations:
- Subscription is required.
- Subscription is required.