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Australia

Rothsay Mine

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Australia

Rothsay Mine

Location: 312 NE from Perth, Western Australia, Australia

Address:

Suite 4, Level 3 South Shore Centre 85 South Perth Esplanade
PO Box 876; South Perth WA 6951
Perth
Western Australia, Australia
6151

Contacts:

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Summary

Mine TypeUnderground
StatusActive
Commodities
  • Gold
Mining Method
  • Longhole open stoping
Production Start... Lock
Mine Life... Lock
SnapshotThe Rothsay Underground mine is a part of the Deflector Operation.

The Rothsay underground mine is a high-grade satellite ore source, with ore road-hauled approximately 197km to Deflector mine. Rothsay ore has been processed at the Deflector processing plant.

Owners

SourceSource
CompanyInterestOwnership
Vault Minerals Ltd. 100 % Indirect
On June 19, 2024, Silver Lake advised that the merger between Silver Lake and Red 5 Limited by way of scheme of arrangement has now been implemented. All Silver Lake shares have been transferred to Red 5.

The Vault Minerals Limited has been decided as the new name of the merged Red 5 and Silver Lake.

Contractors

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SourceSource

Deposit type

  • Vein / narrow vein

Summary:

The Rothsay gold mine is located within the Warriedar Greenstone Belt, an Archaean sequence of mafic, ultramafic, metavolcanic and sedimentary rocks folded in an anticlinal formation which plunges and strikes to the north-northwest with steeply dipping limbs.

The five main lodes within Deflector (Western, Central, Da Vinci, Contact and Deflector South West) are tabular sheets of gold-copper mineralisation, all striking northeast with a moderate variation in thickness and occurring parallel to the enclosing strata. All lodes are narrow, subparallel, fault-hosted, quartz sulfide veins.

The Rothsay gold mine is located within the Warriedar Greenstone Belt, an Archaean sequence of mafic, ultramafic, metavolcanic and sedimentary rocks folded in an anticlinal formation which plunges and strikes to the north-northwest with steeply dipping limbs. The deposit is hosted in three discrete areas and within five individual shear zones. Woodley Shear (formerly A Shear), Woodley East and associated hanging wall shears (formerly H Shear) occur to the east of the main Woodley Lode. Orient Shear (formerly B Shear) and Clyde and Clyde East shears (formerly C and D shears) occur in a second area further west and Miners Shear (formerly E Shear) occurs as an isolated shear in the northwest.

The Woodley Shear is located at the contact between serpentinised peridotite and a porphyritic pyroxenite. The serpentinite forms the hanging wall unit. A sequence of mafic volcanic and sub-volcanic sills forms the hanging wall to the serpentinite. The Woodley Shear is characterised by several generations of quartz veining with adjacent tremolite alteration. The early quartz phase is typically blue-black due to the partial replacement of alumina by chromium oxide. The shear zone is typically 2–5 m thick, and mineralisation does not typically occur outside the shear zone. The main gold mineralisation is associated with shear-hosted quartz veins of blue and white quartz up to 3 m thick. The footwall porphyritic dolerite is relatively unaltered, while the hanging wall serpentinite is strongly foliated and has been subject to intense, though patchy, tremolite alteration.

The Rothsay resource extents are 1,500 m strike, 300 m across strike and 400 m below surface and the resource is open at depth. These extents host approximately 17 interpreted ore lodes. The lodes are 0.1–2 m wide.

Reserves

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Mining Methods

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Heavy Mobile Equipment

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AV - Autonomous

Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Commodity Production

CommodityProductUnits2024202320222021
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Gold Metal in doré oz

Operational metrics

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Production Costs

Commodity production costs have not been reported.

Personnel

Mine Management

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 9, 2024
....................... Subscription required ....................... Subscription required Subscription required Nov 23, 2024
....................... Subscription required ....................... Subscription required ........... Subscription required Subscription required Oct 14, 2024
....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2024

Workforce

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...... Subscription required 2021

Aerial view:

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