Overview
Status | Care and Maintenance |
Mine Type | Underground |
Commodities |
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Mining Method |
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Production Start | ... |
In a tumultuous turn of events, Queensland-based mining company Aurora Metals has collapsed, leaving a trail of debts totaling approximately $170 million. KordaMentha, the appointed administrator, is currently working through Aurora Metals' financial records.
Aurora Metals' collapse came after WA mining services company Emeco (ASX:EHL) took legal action to protect its interests. The company had provided ongoing care and maintenance services to one of Aurora's mothballed mines in Chillagoe, North Queensland.
The company's assets, which include underground mines such as King Vol and Mungana, as well as processing plants at Mt Garnet and Chillagoe, are currently under care and maintenance. |
Source:
The Aurora Metals' assets, which include underground mines such as King Vol and Mungana, as well as processing plants at Mt Garnet and Chillagoe.
Grant Thornton has announced that the newly appointed receivers and managers of Aurora Metals have announced the sale of the base metals company and its assets.
Contractors
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Summary:
The Mt Garnet base metal mineralisation occurs in a garnet-pyroxene-amphibole skarn-altered, northerly-trending, fossiliferous limestone and limey siltstone unit that hosts sphalerite-rich mineralisation. The skarn zone dips sub-vertically, is typically 30 metres to 60 metres wide, and extends beyond 550 metres below surface, which is the current limit of drill investigations.
High-grade massive and semi-massive sphalerite-rich mineralisation (notionally >10% Zn) is largely confined to two distinct, sub-parallel, shallow to moderately north-plunging “shoots”, termed the South Shoot and the North Shoot.
Summary:
Mining operations recommenced at the Mount Garnet mine in July 2017, with the mining of remnant ore from the existing Mount Garnet underground mine in parallel with new development to the newly discovered Mount Garnet Deeps deposit located 70m south of the Mount Garnet mine. The Company commenced decline development from existing workings at the Mount Garnet underground mine to access the Mount Garnet Deeps deposit. The first extraction of ore from the Mount Garnet Deeps deposit commenced in December 2018.
Current mining activity is occurring at both the Mt Garnet Mine and the Dry River South (DRS) Mine at the Surveyor Project.
Development of the new Mt Garnet Deeps decline continued during the last quarter of FY2019 in parallel with ore drive development. Ore from the old Mt Garnet Mine continued with small quantities of remnant ore from the upper levels.
Increasing quantities of development ore will continue to be mined from the Mt Garnet Deeps deposit with stope production commenced in the first quarter of FY2020.
Extraction of Mt Garnet Deeps underground employs Longhole Open Stoping as the mining method with 20 m to 25 m level spacing. Development 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 hauled to surface using CSD CAT AD55 articulated dump trucks.
Source:
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Source:
Summary:
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Reserves at August 30, 2019:
The resources are reported above a 2% Zinc cut-off grade.
Category | Tonnage | Commodity | Grade | Contained Metal |
Indicated
|
416,000 t
|
Zinc
|
4.32 %
|
18,000 t
|
Indicated
|
416,000 t
|
Lead
|
0.22 %
|
900 t
|
Indicated
|
416,000 t
|
Copper
|
0.06 %
|
300 t
|
Indicated
|
416,000 t
|
Silver
|
12.99 g/t
|
174 koz
|
Inferred
|
308,000 t
|
Zinc
|
3.73 %
|
11,500 t
|
Inferred
|
308,000 t
|
Lead
|
0.18 %
|
500 t
|
Inferred
|
308,000 t
|
Copper
|
0.1 %
|
300 t
|
Inferred
|
308,000 t
|
Silver
|
17.4 g/t
|
172 koz
|
Total Resource
|
724,000 t
|
Zinc
|
4.07 %
|
29,400 t
|
Total Resource
|
724,000 t
|
Lead
|
0.2 %
|
1,400 t
|
Total Resource
|
724,000 t
|
Copper
|
0.08 %
|
600 t
|
Total Resource
|
724,000 t
|
Silver
|
14.87 g/t
|
346 koz
|
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