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Australia
Dry River South (Surveyor UG) Mine

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 Location:
235 km SW from Cairns, Queensland, Australia

  Regional Office:
395 Lake Street
Cairns North
Queensland, Australia
4870
Phone  ...  Subscription required
Fax+61 (0) 7 4027 9429
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Zinc
  • Lead
  • Copper
  • Gold
  • Silver
Mining Method
  • Longhole open stoping
  • Avoca
Production Start...
Surveyor Mine Project Mining at the Dry River South Mine (DRS) decline pillar was completed on 6th October 2021. Ore from the stockpile continued to be hauled to Mt Garnet until 17th October 2021.

The project was placed to Care and Maintenance (C&M) with mining equipment being relocated to Mungana Mine at the Chillagoe Project. All Underground mining staff have relocated to the Chillagoe Project.


Owners

Source: p. 20
CompanyInterestOwnership
Aurora Metals Ltd. 100 % Indirect
Aurora Metals Limited was originally called Consolidated Tin Mines Limited (CSD). Aurora owns Surveyor mine.

November 1, 2022 - Aurora Metals Limited (Aurora or the Company) advises the company has engaged advisors to seek interest in a potential sale of the entire company as an operating enterprise potentially on a walk-in walk-out basis.

Pursuant to the proposed sale process, the Company will seek expressions of interest in the form of non-binding offers, the time for receipt of which will end before Christmas 2022. After this, the Company will engage with a shortlist of preferred bidders who will be given an opportunity to undertake in depth due diligence, with a deadline for them to present binding offers to the Company in the first quarter of 2023.

Contractors

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Deposit Type

  • VMS


Summary:

The Dry River South Deposit zinc, lead-rich polymetallic orebody is a sheet of massive pyritic sulphides that dips at a shallow angle to the ESE and plunges gently to the SSW. Massive pyritic sulphides lie along, and just below, the upper contact between highly altered felsic volcanics and relatively unaltered hanging-wall metasediments and extend for up to 250 m down-dip and approximately 800 m down-plunge. The orebody reaches a maximum thickness of about 15 m in structurally thickened domains. The orebody is delimited to the west by late faulting and an extensive body of quartz feldspar porphyry. Down-dip and down-plunge limits are defined by a decrease in sulphides. To the north, the DRS orebody is cut by a complex array of late faults including the NE-trending Andesite Fault. This is interpreted to represent the first stage of structural separation of the DRS orebody from the Surveyor orebody, which lies about 600 m to the north. Access is via a portal and decline from the Surveyor Mine open pit.


Mining Methods

  • Longhole open stoping
  • Avoca


Summary:

Currently operating at approximately 300ktpa.

Rehabilitation of the existing DRS decline and upper level access is ongoing. The rehabilitation includes the installation of cable bolts and fibrecrete using the existing mining fleet. Mining of ore from the remnants within the 200 Panel is completed and the focus is now the 400 Level.

Extraction of Dry River South underground employs Longhole Open Stoping as the mining method in the upper remnant zones with Modified Avoca Stoping to be used to extract the DRS deeps orebody. Development and rehabilitation is achieved using CSD owned Atlas Copco M2D twin boom Jumbos. Longhole production drilling is achieved using CSD owned Sandvik DL432i Production Drill. Teleremote loading in stope is done by CSD CAT R1700 and R2900 loaders and ore is trucked to surface using CSD CAT AD55 articulated dump trucks. Fibrecrete is used throughout the mine, with contractor run batching plant, sprayer and ancillary equipment on site. Ore from the Dry River South Mine is hauled 150 km to Mount Garnet by road-train for processing at the Mount Garnet Processing Plant.


Crushing and Grinding


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:
Since 2018 financial year (which started on July 1, 2017), the Consolidated Tin Mines Ltd. is provided combined data for Dry River South and Mount Garnet mines. Mining operations recommenced at the Mount Garnet mine in July 2017 and at the Dry River South - in May 2018.

CommodityUnits202020192018
Zinc t  ......  Subscription required *  ......  Subscription required *3,140 *
Lead t  ......  Subscription required*  ......  Subscription required*
Copper t  ......  Subscription required*  ......  Subscription required*  ......  Subscription required*
All production numbers are expressed as metal in concentrate. * Combined production for Mount Garnet Mine and Dry River South (Surveyor UG) Mine
Subscription required - Subscription is required.

Operational Metrics:

Metrics202020192018
Tonnes processed  ......  Subscription required189,069 t111,348 t
Annual ore mining rate  ......  Subscription required300 kt
Subscription required - Subscription is required.

Reserves at August 30, 2019:

CategoryTonnage CommodityGradeContained Metal
Indicated 347,789 t Zinc 10.59 % 34,173 t
Indicated 347,789 t Lead 4.22 % 13,630 t
Indicated 347,789 t Copper 0.8 % 2,380 t
Indicated 347,789 t Gold 0.64 g/t 63 koz
Indicated 347,789 t Silver 82.9 g/t 8,452 koz
Inferred 284,414 t Zinc 7.22 % 13,992 t
Inferred 284,414 t Lead 2.71 % 5,195 t
Inferred 284,414 t Copper 0.7 % 1,147 t
Inferred 284,414 t Gold 0.56 g/t 30.5 koz
Inferred 284,414 t Silver 63.6 g/t 3,751 koz



Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Nov 7, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Press Release 2022
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Press Release 2018
Annual Report 2017
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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