Australia

Cadia Hill Mine

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Categories

Overview

Mine TypeStockpile
StatusArchived Information
Commodities
  • Gold
  • Copper
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
SnapshotOperations at the Cadia Hill open pit ceased by 2014.

In December 2019, Cadia Holdings received approval from the New South Wales Department of Planning and Environment (NSW DPE) to fully utilise the decommissioned Cadia Hill mine pit for deposition of dewatered tailings. Now the pit has been used for tailings storage as a mined-out Cadia Hill open pit TSF.

Surface stockpiles from Cadia Hill containing approximately 0.3 Moz gold and 0.04 Mt of copper remain in Mineral Resource (As of 2023, it has remained unchanged since 2018).
Related AssetCadia Valley Operation

Owners

SourceSource
CompanyInterestOwnershipInvestor's Info
Newmont Corp. 100 % Indirect
Cadia Holdings Pty Ltd. (operator) 100 % Direct
Cadia is 100% owned by Newcrest through its wholly owned Subsidiary, Cadia Holdings Pty Ltd.

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.

Deposit type

  • Vein / narrow vein
  • Porphyry

Summary:

The Cadia Hill deposit is a sheeted quartz vein system located almost entirely within the quartz monzonite porphyry phase of the Cadia Intrusive Suite.

The predominant alteration is propylitic (chlorite-epidote) with narrow domains of structurally-controlled phyllic (sericitic) alteration. Mineralization is in part related to chlorite matrix hydrothermal breccias that cut the deposit. Unusually, compared to the other mineralized systems in the area, potassic alteration is confined to K-feldspar rich vein haloes and to some quartz veins.

The vein system forms a broad, 300 m wide tabular envelope that dips 60° to the southwest. Chalcopyrite with lesser bornite, pyrite and gold occur in the quartz veins and as disseminations throughout the intrusive wallrock.

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 Cadia Valley Operation

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 16, 2024
....................... Subscription required ....................... Subscription required Subscription required Apr 16, 2024

Aerial view:

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