Overview
| Stage | Production |
| Mine Type | Open Pit / Underground |
| Commodities |
|
| Mining Method |
- Truck & Shovel / Loader
- Sub-level stoping
|
| Processing |
|
| Mine Life | 10 years (as of Jan 1, 2018) |
Source:
p. 31
The Group completed the sale of the Golden Grove mine to EMR Capital Holdings Pty Ltd (“EMR Capital”) on 28 February 2017 for gross proceeds of US$210.0 million. All conditions for completion were met on 28 February 2017 and the Group lost control of and ceased to consolidate Golden Grove from that date.
Deposit Type
- VMS
- Breccia pipe / Stockwork
Summary:
The mineralisation style is volcanogenic hosted massive sulphide (VHMS) which occurs as sub-vertical lenses within layered sediments and volcanics.
The Golden Grove deposits are located in the Murchison Province in the NorthWestern part of the Achaean Yilgarn Craton in Western Australia within the Yalgoo Greenstone Belt. Mineralisation occurs at the base of the Warriedar Fold Belt (“WFB”) within a sequence of felsic to intermediate volcaniclastic sediments, lavas and associated autoclastic breccias.
The Golden Grove Domain that hosts the Gossan Hill and Scuddles deposits lies along the northeast flank of the WFB. The Mougooderra Fault (west), recrystallised monzogranite (east) and post folding granites (north and south) bound the domain. The current interpretation of the structure places the Golden Grove Domain on the eastern limb of a syncline. The stratigraphy has a westerly younging direction and dips steeply west.
Mining Methods
- Truck & Shovel / Loader
- Sub-level stoping
Summary:
The underground mines are operated by MMG employees and the open pit is operated by a mining contractor.
Summary:
The treatment plant consists of a two-stage semi-autogenous grinding circuit followed by flotation using air agitation to recover the valuable minerals. Each ore type is treated separately to produce either zinc concentrate, heavy precious metals (HPM) concentrate, copper sulphide concentrate or copper oxide concentrate.
Operational Metrics:
| Metrics | 2018 |
|
Mine annual capacity
| ......  |
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Corporate Filings & Presentations:
| Document | Year |
|
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|
2016
|
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2016
|
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2016
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Fact Sheet
|
2015
|
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Aerial view:
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