Overview
| Archived Information |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Mine Life | 5 years (as of Jan 1, 2020) |
On 21 March 2023, White Rock announced that Thomson Resources Ltd had withdrawn from the Joint Venture over Mt Carrington (now the Drake project).
Without the means to pay the Rehabilitation Bond increases White Rock had no option other than to surrender its rights. Accordingly, White Rock has lodged documents with Mining, Exploration and Geoscience, Department of Regional NSW to surrender all the Mining Leases, Mining Purposes Leases, Gold Leases and Special Leases that make up the Mt Carrington Project.
All in all, 22 authorities were included in the surrender documentation. White Rock retained an Exploration Licence (EL6273) and has agreed to sell that tenement to Legacy Minerals Holding Ltd.
Acquisition of the Mt Carrington EL6273 by Legacy Minerals – renamed as the Drake Project.
Legacy Minerals will complete the evaluation of the historical data at the Drake Project with a view to defining high conviction drill targets for testing in 2024. |
Source:
p. 1
White Rock (MTC) Pty Ltd (MTC) is a wholly owned subsidiary of White Rock Minerals Limited (WRM). MTC held the Mining Licenses and an Exploration License that comprised the Mt Carrington project.
At a meeting of creditors on 3 Nov 2023 the motion to wind up MTC was passed.
Documentation to surrender the Mining Licenses has been lodged with Mining, Exploration and Geoscience, Department of Regional NSW (MEG). The Exploration License has been sold to Legacy Minerals Holdings Limited, and WRM have been informed that MEG have authorised the transfer, but at the date of this announcement (11/15/2023) the final payment of $170,000 due to MTC had not yet been made.
Details of Transaction:
1. A$30,000 refundable cash deposit (“Deposit”) payable by the Legacy Minerals’ wholly owned subsidiary (GPM) to WRM within fourteen days of 18 July 2023;
2. A$170,000 cash payable by GPM to WRM on the completion date.
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Deposit Type
- Epithermal
- Vein / narrow vein
- Breccia pipe / Stockwork
Summary:
The Mt Carrington deposits are hosted by the Drake Volcanics; a NW-trending 60km x 10km Permian bimodal volcano-sedimentary sequence within the Wandsworth Volcanic Group near the north-eastern margins of the southern New England Fold Belt.
The Drake Volcanics overlie or is structurally bounded by the Carboniferous to Early Permian sedimentary Emu Creek Formation to the east and bounded by the Demon Fault and Early Triassic Stanthorpe Monzogranite pluton to the west. The sequence is largely dominated by andesite and equivalent volcaniclastics, however basaltic through to rhyolitic facies stratigraphic sequences are present, with numerous contemporaneous andesite to rhyolite sub-volcanic units intruding the sequence. The Razorback Creek Mudstone underlies the Drake Volcanics to the east, and Gilgurry Mudstone conformably overlies the Drake Volcanic sequence. In addition, Permian and Triassic granitoid plutons and associated igneous bodies intrude the area, several associated with small scale intrusion-related mineralisation. The Drake Volcanic sequence and associated intrusive rocks are host and interpreted source to the volcanogenic epithermal Au-Ag-Cu-Pb-Zn mineralisation developed at Mt Carrington. The majority of the Drake Volcanics and associated mineralisation are centred within a large scale circular caldera with a low magnetic signature and 20km diameter.
The Strauss and Kylo deposits are low sulphidation epithermal vein type mineralisation that m ........
Summary:
It has been assumed that the Strauss and Kylo deposits will be mined by open pit mining methods.
Slope parameters of 8m bench height is selected. The pit optimisations and pit designs were developed without considering the value of Inferred material to determine the ultimate pit limits. However, there is a relatively small amount of Inferred material that is within the final pit limits (approximately 12% of the total mill feed inventory).
The Whittle optimisations have resulted in the merging of the three deposits into a single final pit. However, there is still a starter pit for each deposit.
It is envisaged that a mining contractor will carry out the mining activities with technical and management direction from White Rock. The mine is planned to be operated over three discrete open pits each incorporating drill and blast, load and haul, and ore and waste management tasks.
The initial six-month pre-strip is also required before a continuous ex-pit ore supply can be assured. There is an historic low-grade stockpile from the previous mining operations (1987-1990) which requires removal as soon as practicable in order to help improve acid rock drainage management at the site. This historic low-grade stockpile material will be reclaimed and processed during the commissioning phase of the process plant. It is envisaged that reclaiming of this stockpile will commence about 3-4 months after the start of the pre-strip mining. The annual p ........
Source:
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Flow Sheet:
Summary:
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Source:
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Projected Production:
Commodity | Units | Avg. Annual | LOM |
Gold
|
koz
| 36 | 166 |
All production numbers are expressed as metal in doré.
Operational Metrics:
Metrics | |
Annual ore mining rate
| ...... |
Annual processing capacity
| ...... |
Stripping / waste ratio
| ...... |
Waste tonnes, LOM
| ...... |
Ore tonnes mined, LOM
| ...... |
Total tonnes mined, LOM
| ...... |
Tonnes processed, LOM
| ...... |
* According to 2020 study.
Reserves at June 22, 2022:
The Strauss and Kylo MRE uses a 0.35 g/t AuEq cut-off.
Category | Tonnage | Commodity | Grade | Contained Metal |
Indicated
|
4.3 Mt
|
Gold
|
1.37 g/t
|
191 koz
|
Indicated
|
4.3 Mt
|
Silver
|
1.55 g/t
|
216 koz
|
Indicated
|
4.3 Mt
|
Zinc
|
0.34 %
|
14.9 kt
|
Indicated
|
4.3 Mt
|
Copper
|
0.06 %
|
2.5 kt
|
Inferred
|
1.7 Mt
|
Gold
|
0.64 g/t
|
34 koz
|
Inferred
|
1.7 Mt
|
Silver
|
1.69 g/t
|
91 koz
|
Inferred
|
1.7 Mt
|
Zinc
|
0.3 %
|
5 kt
|
Inferred
|
1.7 Mt
|
Copper
|
0.06 %
|
1 kt
|
Total Resource
|
6 Mt
|
Gold
|
1.17 g/t
|
225 koz
|
Total Resource
|
6 Mt
|
Silver
|
1.59 g/t
|
306 koz
|
Total Resource
|
6 Mt
|
Zinc
|
0.33 %
|
19.8 kt
|
Total Resource
|
6 Mt
|
Copper
|
0.06 %
|
3.5 kt
|
Total Resource
|
6 Mt
|
Gold Equivalent
|
1.41 g/t
|
271 koz
|
Required Heavy Mobile Equipment as of August 19, 2020:
HME Type | Model | Leased or Contractor |
Truck (dump)
|
.......................
|
|
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