Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Processing |
|
| Production Start | 1881 |
| Mine Life | 9 years (as of Jan 1, 2021) |
South Island domestic (“SID”) consisted of the Takitimu and Canterbury mines, producing a low sulphur thermal energy coal for local agricultural, health and other food manufacturing industries.
Takitimu had a successful year with all key operational targets being met. Rehabilitation focus for FY22 is 12 hectares including commencing a historic overheight overburden area. |
Source:
p. 98,105
Takitimu reserves and Canterbury reserves are 100 percent Bathurst Resources Limited ownership.
Contractors
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Summary:
• The project is located in the Ohai Coalfield, New Zealand.
• The Ohai Coalfield is a fault bounded basin containing Cretaceous sub-bituminous coal.
• The defined Coal Resource is contained within the Morley and Beaumont formations.
• The Cretaceous Ohai Group contains three formations – the Wairio, New Brighton and the Morley Formations.
• The Eocene Nightcaps Group contains two formations – the Beaumont and Orauea Formations.
• The two groups are separated by an unconformity, clearly distinguishable by micro-flora.
• Most of the historical production has come from seams in the Morley Formation, which tend to contain higher quality coal. Coal seams are faulted and folded into complex structures. Coal thickness and extent varies as coal seams are often lenticular and split or washed out by fluvial sand channels and syn-depositional faulting and folding are indicated.
• Morley Coal Measures of the Ohai Group have a combined vertical seam thickness which averages 4.1 m; however, 23 m thick seams have been recorded.
• Beaumont Coal Measures of the Nightcaps Group have a combined vertical seam thickness which averages 1.4 m; however, 7 m thick seams have been recorded. Coal ranks from subbituminous C-B rank.
• The Nightcaps Group Beaumont Formation Coal Measures are conformably overlain by Eocene Orauea Formation mudstone.
• Coal rank ranges from sub-bituminous A to high-volatile bituminous C.
• Several coal seams are present in two main seams in the Beaumont Formation and up to four in the Morley Formation. The total combined coal thickness varies from less than 1 m thick up to 25 m locally.
• The model covers an area 2.4 km in width by 3.6 km in length.
• The deposit consists of the Takitimu, Coaldale and Black Diamond prospects which covers an area approximately 230 Ha.
• The deposit is bounded by the Nightcaps Fault to the northeast and the Fern Fault to the northwest.
• The Takitimu deposit is separated from the Coaldale and Black Diamond deposits by the Trig E fault.
Summary:
The Takitimu mining area has been operational since 2007, with the current Coaldale pit starting in 2012.
The Takitimu mine utilises truck and shovel for waste and coal movement. The operations are supported by additional equipment including dozers, graders, and water carts.
Source:
Summary:
The ROM coal produced at Takitimu is crushed and screened on site. A process recovery of 95% is used based on a processing reconciliation study.
Product coal specifications include ash, Sulphur, moisture and calorific value.
Production:
| Commodity | Units | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|
Coal (thermal)
|
Mt
| ...... * | ...... | ...... | 0.2 | 0.2 | 0.3 | 0.3 |
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Operational Metrics:
| Metrics | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Waste
| ...... | ...... | 2,213,010 bcm | 2,084,213 bcm | 1,763,424 bcm | 2,339,628 bcm |
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Reserves at June 30, 2021:
Coal resources are reported down to a seam thickness of 0.5 m (one block) with an ash cut-off of 25%.
Ore Reserves: a maximum ROM ash of 15% (arb) and a minimum coal thickness of 0.5m are applied.
| Category | Tonnage | Commodity | Marketable Coal |
|
Probable
|
1 Mt
|
Coal (thermal)
|
0.8 Mt
|
|
Measured
|
0.2 Mt
|
Coal (thermal)
|
|
|
Indicated
|
1.7 Mt
|
Coal (thermal)
|
|
|
Inferred
|
0.1 Mt
|
Coal (thermal)
|
|
Heavy Mobile Equipment as of October 31, 2018:
| HME Type | Quantity |
|
Excavator
|
.......................
|
|
Truck (dump)
|
.......................
|
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Corporate Filings & Presentations:
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Aerial view:
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