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Australia
Garden Well Mine

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 Location:
81 km N from Laverton, Western Australia, Australia

  Address:
Level 2
516 Hay Street
Subiaco
Western Australia, Australia
6008
Phone  ...  Subscription required
Fax+61-8-94-42-2290
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2029
The Garden Well Operations include Garden Well open pits, Tooheys Well, Russell’s Find and Erlistoun open pits.

Development of the Garden Well South (GWS) Underground mine below the current Garden Well open pit commenced in early 2021.


Owners

Source: p. 17
CompanyInterestOwnership
Regis Resources Ltd. 100 % Indirect
The Garden Well gold deposit is located on M38/1249, M38/1250, M38/283. Current registered holders of the tenements are: M38/1249 Regis Resources Ltd; M38/1250 and M38/283 Regis Resources Ltd and Duketon Resources Pty Ltd (100% subsidiary of Regis Resources Ltd).

Contractors

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Deposit Type

  • Orogenic


Summary:

Garden Well is located on the eastern limb of the Erlistoun syncline of the Duketon Greenstone Belt. The gold of the Garden Well Deposit occurs as supergene mineralisation within upper Archaean regolith and as hypogene mineralisation in fresh rock. No significant amounts of gold occur in the transported quaternary clay sequence.

The gold is associated with intensely sheared and folded ultramafic and shale units that have been hydrothermally altered to a silica- carbonate-fuchsite-chlorite-pyrite-arsenopyrite assemblage, and underlying chert units.

The gold mineralisation trends roughly north-south over a distance of 2,100m and dips 50º to 60º east which is sub-parallel to the ultramafic-sediment contact.

The approximate dimensions of the deposit are 2,100m along strike (N-S), 600m across (E-W), and 500m below surface.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining method assumed in the Ore Reserve study is the same as that currently employed at the Garden Well Gold Mine, which utilises drill and blast, excavator and truck open pit mining. The existing pit has been designed to be developed in a series of progressive cutbacks.

Geotechnical and hydrogeological recommendations have been applied during pit optimisation and incorporated in design with ongoing reviews. No factors are applied to the Measured portion of the deposit. 5% ore-loss has been considered for the Indicated portions of the deposit in the estimation of the Ore Reserve. This is considered consistent with the current reconciliation to production, the style of estimation and experience from Regis’ other Duketon operations which use the same estimation approach, and is consistent with the suitability of earthmoving equipment to the orebody type (moderate grade and wide mineralised zones).

The UG operation will extend mining of the Garden Well mineralisation below and to the south of the existing operational open pit. Development of the portal is to commence in the March 2021 quarter and will exploit the UG Mineral Resource as it is currently known, which extends to a depth of 500 metres below surface and 700 metres to the south of the Garden Well open pit. The mineralisation is considered to have strong potential to extend further down plunge and this will be explored once UG mining has been established.


Crushing and Grinding
Source: Subscription required


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits202020192018201720162015
Gold koz  ......  Subscription required  ......  Subscription required112131158151
All production numbers are expressed as metal in ore.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Plant annual capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required5 Mt5 Mt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required3.2 Mt3.8 Mt4.3 Mt
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Resources are reported at cut-off grades of 0.4 g/t Au for open-pit.
Reserves are reported at cut-off grades of 0.5 g/t Au for open-pit and 2.1 g/t Au for underground.

CategoryOreTypeTonnage CommodityGradeContained Metal
Measured In-Situ (OP) 11 Mt Gold 0.6 g/t 230 koz
Indicated In-Situ (OP) 43 Mt Gold 0.9 g/t 1,230 koz
Inferred In-Situ (OP) 4 Mt Gold 0.7 g/t 100 koz
Total Resource In-Situ (OP) 59 Mt Gold 0.8 g/t 1,550 koz



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 25, 2022
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....................... Subscription required ....................... Subscription required Subscription required Oct 25, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 25, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2022
Subscription required 2021
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Quarterly Report 2022
Sustainability Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Year-end Mineral Reserves 2015
Feasibility Study Report 2011
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Subscription required - Subscription is required.

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