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Australia
Garden Well South Project

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

  Project Contacts:
Level 2, 516 Hay Street
Subiaco
Western Australia, Australia
6008
Phone  ...  Subscription required
Fax+61-8-9442-2290
EmailEmail
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
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  • Filings & News

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Overview

StageConstruction
Mine TypeUnderground
Commodities
  • Gold
Mining Method
  • Longhole open stoping
  • Cemented backfill
Production Start...
Mine Life4 years (as of Jan 1, 2020)
Good progress on the Garden Well South underground continued during the September quarter with stope production to commence in the December quarter and commercial production scheduled for second half of FY23.


Owners

Source: p. 22
CompanyInterestOwnership
Regis Resources Ltd. 100 % Indirect
Current registered holders of the tenements are Regis Resources Ltd. Regis Resources Ltd has 100% interest in all tenements.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Breccia pipe / Stockwork
  • Orogenic


Summary:

The Garden Well deposit lies in the DGB in the north-eastern part of the Archean Yilgarn Craton of Western Australia. The DGB is characterised by a strong N-S structural trend defined by major faults and shear zones, regional folds and granite batholiths.

The geology of GWS UG consists of a sequence of folded sedimentary and volcanic rocks. The sequence can be differentiated into fine grained siltstones, lapilli and tuff volcaniclastics, sedimentary breccias, black shales, banded iron formation, chert, interbedded chert/shale and a footwall basalt unit. All of the units strike NNW at approximately 340-350o. Folding is tight and plunges approximately 20o to the SSE.

Primary mineralisation is present as pyrite beds and veinlets within the western limb of the syncline, hosted by siderite-altered chert. Mineralisation at GDW is strongly controlled by lithological rock type.

The maiden GWS UG MRE is estimated from the initial target zone at GWS and extends over 700m down plunge to a depth of 500 meters below natural surface.

Gold is hosted in a moderate east to steeply dipping shear zone trending N-S. Gold mineralisation within chert, shale and BIF is associated with brecciated zones including elevated sulphides and quartz veins.


Mining Methods

  • Longhole open stoping
  • Cemented backfill


Summary:

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.

The GWS UG Project is currently planned to be mined over four years using conventional Long Hole Open Stoping (LHOS) mining methods using a combination of selective cemented rock fill and mineralised (ore grade) pillars.

The development and stoping schedule across the life of mine (LOM) has been sequenced to allow for a relatively rapid extraction rate of the Mineral Resource, without a protracted low production “tail”. Mine production has not been levelled as the UG ore displaces lower grade open pit mill feed as it becomes available, facilitated by the much larger processing capacity of the ~5Mt/a Garden Well plant.

The GWS UG Project will establish a portal and decline off the western wall of the Garden Well open pit approximately 130m below surface (mbs). This location sits around midway between the natural surface and the final planned depth of the Garden Well open pit of ~265mbs. A return air way and escapeway will be est ........


Crushing and Grinding


Processing

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Summary:

- subscription is required.


Projected Production:

CommodityUnitsLOM
Gold koz 176

Operational Metrics:

Metrics
Ore tonnes mined, LOM  ......  Subscription required
Annual ore mining rate  ......  Subscription required
* According to 2020 study.
Subscription required - Subscription is required.

Reserves at December 31, 2020:
Resources are reported at cut-off grade of 1.8 g/t Au.
Reserves are reported at cut-off grade of 2.1 g/t Au.

CategoryTonnage CommodityGradeContained Metal
Probable 1 Mt Gold 3.4 g/t 100 koz
Indicated 1 Mt Gold 3.8 g/t 140 koz
Inferred 1 Mt Gold 3.4 g/t 130 koz
Total Resource 2 Mt Gold 3.6 g/t 280 koz

Commodity Production Costs:

CommodityUnitsAverage
All-in sustaining costs (AISC) Gold AUD  ......  Subscription required&nbs
Assumed price Gold AUD  ......  Subscription required&nbs
* According to 2020 study / presentation.

2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M AUD  ......  Subscription required
Total CapEx $M AUD  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of December 14, 2020:
HME TypeQuantity
Drill jumbo (two boom) ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 9, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 9, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 9, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Quarterly Report 2023
Annual Report 2022
Quarterly Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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