Overview
Stage | Production |
Mine Type | Open Pit & Underground |
Commodities |
|
Mining Method |
- Truck & Shovel / Loader
- Longhole open stoping
|
Southern Cross operation is an operational project area comprising a number of underground and open-pit gold mines, and Marvel Loch Processing Plant.
Production data has not been available since 2018. |
Source:
p. 6
Barto Gold Mining Pty Ltd. owns and operates the Southern Cross Operations (SXO).
Barto Gold Mining Pty Ltd. is a subsidiary of Shandong Tianye Group Bid Co Pty Ltd.
Contractors
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Deposit Type
- Vein / narrow vein
- Banded iron formation
Summary:
The Southern Cross deposit is located within one of the three granite-greenstone terranes, and is known as the Southern Cross Province. The geology of this region is dominated by the Marda-Diemals greenstone belt, which is divided into three layers including the lower greenstone belt which is comprised of mafic volcanics and BIFs, a felsic-intermediate volcanic layer and an upper sedimentary layer which dominated by calc-alkaline volcanics and clastic sedimentary rocks.
Gold mineralisation in the Southern Cross district typically occurs along the northwest/southeast trending Achaean Southern Cross Greenstone Belt. The Southern Cross Greenstone Belt is a highly deformed band which comprises tholeiitic and high-Mg basalts and komatiites together with BIF overlain by younger sequences of terrigenous sedimentary rocks.The Belt has been influenced by overlapping metamorphic, deformational and granitoid emplacement events.
The lode-gold deposits in this belt occur within the volcanic-dominated greenstones, with the most significant deposits being within the Fraser’s Corinthia shear zone. The major structures which are recognised for gold mineralisation are in the fold-hinge zones and the shear zones. Within the foldhinge zones, the most common host rock is BIF, while in the shear zones, the gold mineralisation is found primarily within the mafic and ultramafic volcanic rocks and micaceous schists.
Within these rocks, the ore is present as quartz ri ........
Mining Methods
- Truck & Shovel / Loader
- Longhole open stoping
Summary:
Southern Cross's Cornishman Gold Mine and Axehandle Gold Mine adopts open-pit mining and Nevoria Gold Mine adopts underground mining. All ore mined were transported to Marvel Loch Processing Plant to be processed into gold dores which were then transported to Perth Mint to be refined for sale.
The Cornishman Gold Mine is an open pit mine located approximately 5 km south of the Southern Cross town site. Mining re-commenced at the Cornishman mine towards the end of 2014. For mining to occur, dewatering of the pit was required with Hanking amending its GWL 59227 to include the Cornishman mine leases for dewatering activities.
The Axehandle mine is a new project located approximately 20 km north of Marvel Loch. Stripping at Axehandle Gold Mine commenced in November 2015, and gold ore mining activities commenced in May 2016.
Nevoria uses conventional underground long-hole open stoping retreat mining methods as currently being used at the nearby operating Nevoria East underground mine.
Source:
Source:
Source:
Summary:
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Production:
All production numbers are expressed as metal in doré.
Operational Metrics:
Metrics | 2022 | 2017 |
Annual processing capacity
| ...... | 2.4 Mt |
Tonnes processed
| ...... | |
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Reserves at December 31, 2020:
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
10.538 M tons
|
Gold
|
0.096 oz/ton
|
1.01 M oz
|
Commodity Production Costs:
| Commodity | Units | 2017 |
C1 cash costs
|
Gold
|
AUD
|
958 / oz
|
Operating Costs:
| Units | 2016 |
Combined mining costs ($/t mined)
|
AUD
| 26.5 |
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Corporate Filings & Presentations:
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