Overview

Mine Type	Open Pit
Stage	Pre-Feasibility
Commodities	REE Ilmenite Zircon Rutile Monazite Xenotime Titanium
Mining Method	Truck & Shovel / Loader Dredging
Production Start	...
Mine Life	...
Snapshot	Wimmera is a large, fine-grained deposit providing a potential multi-decade source of both zircon and rare earths – including the highly valuable heavy rare earths dysprosium and terbium. It is planned that Wimmera’s rare earths will be transported to Eneabba to be refined into separated rare earth oxides. Work continuing on processing solution for higher level of impurities in zircon. Definitive feasibility study funding approved in February 2023, scheduled for completion end of 2025. As zircon revenue has not been accounted for in Wimmera’s Ore Reserve estimation at this stage, it represents potentially substantial future upside to the development’s economics. The internally derived commodity price assumptions are established by monitoring supply and demand on an ongoing basis using confidential and commercially sensitive trading arrangements.

Deposit type

• Mineral sands
• Sedimentary

Summary:

The WIM100 deposit is located along the south eastern margin of the Murray Basin geomorphological province in the state of Victoria, Australia. The zone of mineralisation grading in excess of 1% HM is hosted in a single tabular horizon within the Loxton Parilla Sand (LPS) geological unit. Mineralisation extends over a north-south strike distance of 9.5km and an east-west distance of 3.5km. The mineralisation varies from 3 to 20m in thickness averaging 9.5m and resides beneath 8 to 20 m of unmineralised sediment.

WIM100 along with adjacent deposits WIM50 and WIM50 North are located along the southern margin of the Murray Basin, a shallow, intracratonic basin of Cainozoic age. The basin covers a saucershaped area around 300,000km2 extending into eastern South Australia, south-western New South Wales and north-western Victoria. It is flanked by uplands of Proterozoic and Palaeozoic rocks.

The Murray Basin contains a succession of freshwater, marine, coastal and continental sediments. The latest marine transgression-regression event resulted in the deposition of the Late Miocene to Late Pliocene Loxton-Parilla Sand (LPS). These sediments were deposited in shallow marine, littoral environments with some terrestrial fluvial intercalation and are characterised by fine to coarsegrained, generally well sorted sand with minor clay silt and gravel.

Dimensions
The WIM100 mineralisation has a north-south strike extent of about 9.5 km, an east-west across strike extent of about 3.5 km. The mineralisation varies from 3 to 20 m in thickness and averages about 9.5m in thickness. The mineralisation is covered by an average thickness of about 15 m of non-mineralised Shepparton Formation and coarse grained LPS with depth to mineralisation varying from about 8 m to 20 m.

Mining Methods

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Comminution

Crushers and Mills

Processing

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Production

Operational metrics

Metrics
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Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Mar 26, 2024
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