Overview

Mine Type	Open Pit
Status	Inactive / Suspended
Commodities	Iron Ore
Mining Method	Truck & Shovel / Loader
Production Start	...
Mine Life	...
Snapshot	Strike is now undertaking Stage 2 Development of Paulsens East, which will involve conventional open pit mining of the Paulsens East hematite ridge, ramping up to an annualised production rate of up to ~1.8 Mtpa, with road train haulage to and export (via transhipment operations) through the Port of Ashburton near Onslow. Whilst the successful shipment of its first shipment of iron ore from Paulsens East is a significant milestone for the Company, Strike has determined to pause on further shipments from Utah Point given market conditions, together with rising input costs, adversely impacting operating margins. Strike is advancing the development of an export solution through the Port of Ashburton, which has the potential to significantly improve the commercial economics at Paulsens East and thus will play an important part in the decision to restart operations at Paulsens East.

Deposit type

• Conglomerate hosted

Summary:

The Paulsens East tenement includes sediments of the Middle Proterozoic Wyloo Group which contain hematite mineralisation. The Wyloo Group rocks range from the continental Beasley River Quartzite to red beds of the Mt McGrath Formation that have been overlain by the shallow marine Duck Creek Dolomite.

The iron mineralisation found within the tenement occurs as a hematite conglomerate in the Mt McGrath Formation forming a prominent arcuate ridge up to 60 metres high, with cumulative average widths of ~6 metres and approximately 3,000 metres long. The conglomerate consists of hematite pebbles in a hematite rich matrix and cement. The conglomerate, when it is fully mineralised, is composed of hematite clasts in a hematite matrix. When the conglomerate is “unmineralised” (i.e. below economic cut-off grade) the clasts are composed chert and often Weeli Wolli BIF (a distinctive banded red chert alternating with a siliceous hematite BIF).

The Paulsens East iron ore deposit comprises three main bands of iron rich hematite conglomerate mappable as continuous bands along its three kilometre strike length. These bands were originally deposited in the Proterozoic and formed by erosion of mineralised bedrock and its subsequent reconstitution. During reconstitution, hematite pebbles were deposited and held together in hematite matrix along land and marine interface such that the high purity heavy hematite conglomerate bands occur interbedded with ferruginous quartzites and subordinate ferruginous clay.

The core of the deposit is generally very high grade and it is expected that sampling of blast holes and sharp colour contrast will assist greatly in grade control.

The Indicated Mineral Resource extends from the surface to 75 metres below the deepest drill intersection or the 150 metre RL (reduced level), whichever occurs first.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

Commodity	Units	2023
Iron Ore	t	....

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Dec 13, 2023