• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Australia
Isaac Downs Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
10 km SE from Moranbah, Queensland, Australia

  Project Contacts:
Level 15, 133 Mary Street
Brisbane
Queensland, Australia
40000
Phone  ...  Subscription required
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Australia
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Coal (M/T)
Mining Method
  • Truck & Shovel / Loader
  • Dragline
Processing
  • CHPP
  • Wash plant
Mine Life16 years (as of Jan 1, 2020)
27 July 2021 - The Board of Stanmore Resources Limited is pleased to announce that the mining leases for the Isaac Downs Project have been granted by the Minister for Resources Queensland, Mr Scott Stewart. This is the last significant approval required to enable construction and operations to commence.
Latest NewsStanmore welcomes EPSA to Isaac Downs     January 19, 2022


Owners

Source: p. 4
CompanyInterestOwnership
Golden Energy and Resources Ltd. (GEAR) 60 % Indirect
Stanmore IP South Pty Ltd (operator) 100 % Direct
Stanmore IP South Pty Ltd, a wholly owned subsidiary of Stanmore Coal Limited (Stanmore), is the proponent for the Isaac Downs Project.

Stanmore Coal Limited is a 60.0154% indirect subsidiary of Golden Energy and Resources Limited, and has two principal assets - the producing Issac Plain Complex and Issac Down.

Deposit Type

  • Sedimentary


Summary:

Isaac Downs is located in the northern part of the Permo-Triassic Bowen Basin containing principally fluvial and some marine sediments. The economic seams are contained in the Late Permian Rangal Coal Measures which are approximately 100 m thick. The Rangal Coal Measures are underlain by the Fort Cooper Coal Measures and overlain by the Late Permian to Early Triassic Rewan Group. The transition from the Rangal Coal Measures to the Rewan Formation is 15 to 60 m above the first major seam of the Rangal Coal Measures. The Fort Cooper Coal Measures comprise typically tuffaceous sandstones, siltstones, mudstones and coal seams. The transition between the Rangal Coal Measures and the Fort Cooper Coal Measures is generally clearly marked by the Yarrabee Tuff - a basin-wide marker bed comprised of weak, brown tuffaceous claystone. The first coal seam of the Fort Cooper’s is the Girrah Seam which is 25 metres or more below the Vermont Seam within the Project area.

Alluvium occurs along the Isaac River. The alluvial sediments comprise a fining-upward sequence of unconsolidated sand, silt, clay, gravel, and lithic fragments. The alluvium may extend to a distance up to 750 m from water courses. However, the lateral extent of alluvium may be highly variable.

In the Project area, the Rangal Coal Measures dip to the east to north east (2 to 6 degrees) and include interbedded sandstone, siltstone, and lesser amounts of carbonaceous mudstones, coal, and tuff. A weathered zone extends to 15 m to 30 m below ground level. Typically, the Leichhardt Coal and Vermont Coal Seams occur as a singular package, in very close proximity, with splits in some areas up to 30 m.


Mining Methods

  • Truck & Shovel / Loader
  • Dragline


Summary:

The mine will utilise an open cut mining technique where strips and blocks will be mined in succession, thus allowing waste from one strip or block to be dumped into a previously mined out area. Waste from an initial strip or boxcut will be dumped into an out of pit dump (ex-pit spoil) to the west of the pit area.

Under the BFS mine planning scenario, the initial Isaac Downs box cut will be established where the coal seam is close to the surface topography using an excavator and truck operation at low strip ratios. Subsequently, the dragline will be ‘walked’ from Isaac Plains to Isaac Downs and a standard Bowen Basin dragline operation will be established from north to south, supported by excavator and truck pre-strip operations.

A series of mine stage plans has been developed for the Project, showing the progression of mining activities at each stage. These stage plans have underpinned the assessment and management of Project impacts during and post operations. The Project open cut mining will involve the following activities:
- clearing of any vegetation;
- stripping and stockpiling of topsoil;
- drilling and blasting of pre-strip overburden;
- removing the pre-strip overburden using truck and shovel fleets and/or dozers;
- drilling and blasting of overburden;
- overburden removal by dragline;
- coal mining using excavators;
- progressive rehabilitation of overburden emplacement areas.

The coal will be mined using front end loaders and excavators and placed into rear dump trucks for haulage. The haul trucks will transport the coal along the strip or terrace, up a coal ramp out of the pit, then along a haul road to a ROM coal stockpile area located near the pit. The coal will be dumped onto a stockpile, from where it will be loaded onto road trains (or similar) for transport to the IPM CHPP.


Crushing and Grinding


Processing

  • CHPP
  • Wash plant

Source: Subscription required

Summary:

ROM coal will be hauled on a purpose built, dedicated haul road to the adjoining IPM to the north, where it will be processed at the IPM coal handling and preparation plant (CHPP), before loading onto the IPM rail loop for railing to the Dalrymple Bay Coal Terminal (DBCT) for export. The Project will utilise approved capacity at the CHPP. Coal mined at Isaac Downs will transition from coal mined at IPM, with mining equipment and a similar workforce transferred from IPM to Isaac Downs. IPM operations will recommence once production from Isaac Downs declines in the later years of Isaac Downs operations.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Coal (M/T) Mt 2.219
All production numbers are expressed as clean coal.

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Annual mining rate  ......  Subscription required
ROM coal, LOM  ......  Subscription required
* According to 2020 study.
Subscription required - Subscription is required.

Reserves at June 30, 2020:

CategoryTonnage CommodityMarketable Coal
Proven 22.3 Mt Coal (M/T) 15.8 Mt
Probable 3.6 Mt Coal (M/T) 2.1 Mt
Proven & Probable 25.9 Mt Coal (M/T) 17.9 Mt
Measured 24.7 Mt Coal (M/T)
Indicated 11.5 Mt Coal (M/T)
Total Resource 36.2 Mt Coal (M/T)

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Coal (M/T) AUD  ......  Subscription required *
Total cash costs Coal (M/T) AUD  ......  Subscription required *
Assumed price Coal (M/T) AUD  ......  Subscription required *
* According to 2020 study / presentation.
Subscription required - Subscription is required.

2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M AUD  ......  Subscription required
After-tax NPV @ 9% $M AUD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Heavy Mobile Equipment:
HME TypeModelSizeQuantityRef. Date
Dragline ....................... Subscription required Oct 23, 2020
Excavator ....................... Subscription required 600 t ....................... Subscription required Dec 31, 2020
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 1, 2021
....................... Subscription required ....................... Subscription required Subscription required Oct 1, 2021
....................... Subscription required ....................... Subscription required Subscription required Oct 23, 2020
....................... Subscription required ....................... Subscription required Subscription required Oct 1, 2021
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Subscription required - Subscription is required.

News:

NewsDate
Stanmore welcomes EPSA to Isaac Downs January 19, 2022
Australia's Stanmore gets approval to develop Queensland coal project July 27, 2021
Stanmore inches closer to extending Isaac Plains October 26, 2020

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2022 MDO Data Online Inc.