Australia

Solomon Hub Operation

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Categories

Overview

Mine TypeOpen Pit
StatusActive
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
SnapshotThe Solomon Hub comprises the Firetail, Kings Valley and Queens Valley mines. The expansion to Queens Valley has enabled continued production of the Kings Fines product.
Related AssetsFiretail Mine, Kings/Queens Valley Mine

Owners

SourceSource
CompanyInterestOwnershipInvestor's Info
Fortescue Ltd 100 % Indirect
FMG Solomon Pty Ltd. (operator) 100 % Direct
Fortescue’s wholly owned and integrated operations in the Pilbara include the Solomon (Firetail, Kings Valley and Queens Valley mines).

Contractors

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Deposit type

  • Channel Iron (CID)
  • Bedded Iron (BID)
  • Detrital Iron (DID)

Summary:

Solomon Hub Deposits – Firetail, Kings and Queens. The Solomon Project area is situated approximately 60km to the north of the Tom Price township in the northern Hamersley ranges. Outcropping geology in the project area is dominated by the Dales Gorge, Whaleback Shale and Joffre Members of the Brockman Iron Formation which hosts large bedded iron deposits (BID) throughout the Hamersley Province. The Firetail deposit comprises the majority of BID tonnes at Solomon, where geologically favourable environments have allowed for the formation and preservation of large tonnages of bedded iron mineralisation.

Incised into the bedrock geology are regional palaeochannel systems, predominantly one to two kilometres in width, and stretching for tens of kilometres. During the Miocene period, deep chemical weathering and erosion of iron rich material into these fluvial channels has formed channel iron deposits (CID). The CID is subdivided into an upper ‘hard CID’ and a lower ‘ochreous CID’, there is also a semi-continuous middle CID layer which is difficult to detect with RC drilling. Clay lenses within the CID are observed as semi-discrete bands, often several meters thick. The clay lenses are somewhat discontinuous and of a poddy nature although often traceable between drill holes. CID of approximately 40km strike length is preserved in the Kings CID system, with an additional 25km of CID located in the Serenity deposit to the west. Other CID occurrences are also known throughout the Solomon project area. The material overlying the CID (and other areas) has been eroded from adjacent mineralised and un-mineralised bedrock. This clastic material is concentrated into horizons of elevated iron grade termed detrital iron deposits (DID), which forms part of the sequence of overlying late Tertiary aged alluvial and colluvial deposits.

Mineralisation within the Solomon area is hosted by buried Channel Iron Deposits (CID), Bedded mineralisation (BID and Detrital mineralisation (DID). Outcropping geology in the area is the Dales Gorge, Whaleback Shale and Joffre Members of the Brockman Iron Formation which contain the BID mineralisation. Incised into this bedrock geology are the large Channel systems which contain the DID and CID mineralisation.

Kings: The CID mineralisation has a strike length of 20km and a width of 1 - 2km. Though the CID mineralisation outcrops in the southeast corner of the deposit, the majority of the CID mineralisation is buried and occurs at depths of up to 40m below surface and the defined mineralised units have a thickness of between 1m and 65m.

Queens: The CID mineralisation has a strike length of 10km and a width of 0.5 - 1km. The CID mineralisation is buried and occurs at depths of up to 60m below surface and the defined mineralised units are between 1m and 65m thick.

Firetail: The bedded mineralisation has a strike length of 7km and outcrops on the north and south limbs of an anticline. Mineralisation is strata bound, has an average thickness of 20m and extends to a depth of 100m below surface in places.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

Combined production numbers are reported under FMG Operation

Operational metrics

Metrics202320222021202020192018201720162015
Annual production capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe75 Mt of iron ore lump & fines75 Mt of iron ore lump & fines75 Mt of iron ore lump & fines70 Mt of iron ore lump & fines70 Mt of iron ore lump & fines

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

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AV - Autonomous

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 20, 2023
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....................... Subscription required ....................... Subscription required Subscription required Oct 20, 2023

Total WorkforceYear
...... Subscription required 2022
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Aerial view:

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