Overview
Stage | Production |
Mine Type | Stockpile |
Commodities |
|
Mining Method |
|
Production Start | ... |
Mining operations were completed at Tampia in May 2023.
Ore remained in stockpiles at Tampia, awaiting haulage to Edna May for processing. |
Source:
p. 13
The Tampia deposit owned 100% by Ramelius Resources Ltd.
Contractors
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Summary:
Tampia is hosted within Archaean mafic-felsic granulite facies units. Gold mineralisation is hosted within a mafic gneiss unit dominated by pyroxeneplagioclase - amphibole minerals. Late granitic sills intrude the mafic gneiss. Gold mineralisation occurs as shallow dipping (20°-30°), 2-20m thick lode zones subparallel to the granitic sills. Gold mineralisation of associated with disseminated pyrrhotite, arsenopyrite, chalcopyrite and rare pyrite.
Alteration includes silica, microcline, hornblende and clinopyroxene. Gold mineralisation is associated with disseminated pyrrhotite, arsenopyrite, chalcopyrite and rare pyrite. Total sulphide content of mineralised zones is typically 1-3%. Arsenic grade is a good indicator of gold mineralisation, which is frequently nuggety. The resource covers an area of 900m x 500m.
Dimensions
The deposit has a strike of 1000m, down-dip width of around 400m and depth extent of around 150m. The mafic gneiss, granite sills and mineralised lodes have a shallow SE dipping, gently folded orientation forming a ‘bowl’ shaped geometry.
Lode and shear hosted styles. Strikes range from 140m (Dugite) to 450m (Golden Orb) and dip at 70-90°. Average lode width approximately 10m, mostly ranging between 2- 20m. Down-dip extents typically 50-75m.
Summary:
Open pit mining methods for open pit resources use 90t rigid dump trucks and excavators of 120 to 200t operating weight. Generally a minimum width of around 3m is assumed for open pit.
Mining operations were completed at Tampia in May 2023.
Rehabilitation activities are being carried out in conjunction with ore haulage.
Ore remained in stockpiles at Tampia, awaiting haulage to Edna May for processing.
Flow Sheet:
Blended ore is processed through 2 stage crushing circuit. Crushed ore is stored on a coarse ore stockpile with a live capacity of approximately 3,800 tonnes. The grinding circuit consists of a primary SAG mill, secondary ball mill crushing circuit.
Primary crushing/grinding plant/machinery:
Mobile crushing fleet including jaw crusher, cone crusher, vibrating screen and 2 x stacker conveyors. 70t and 20t cranes.
Grinding plant equipment:
SAG with 2,000kW installed power, SAG mill size 6.71m x 2.59m, rubber-steel composite liners, Ball mill with 3,720kW installed power, ball mill size 5.03m x 8.21m, composite. Classification WarmanCavex 400mm (400CVX).
Screening plant/equipment:
Trash screen horizontal vibratory 2.4m x 6.1m, polyurethane deck 0.8mm cross flow slots.
Recycle crusher:
Terex RC45 cone crusher, vibrating feeder bypass using an overflow bin. Nominal reduction CCS of 14mm.
Flow Sheet:
Summary:
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Source:
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Reserves at June 30, 2023:
Cut Off grades applied vary between 0.4g/t and 0.6g/t.
A maximum A$2,700/oz gold price has been used to estimate Ore Reserves and determine appropriate cut-offs.
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven
|
1,200,000 t
|
Gold
|
1.5 g/t
|
56,000 oz
|
Measured
|
1,800,000 t
|
Gold
|
1.2 g/t
|
69,000 oz
|
Financials:
| Units | 2022 | 2021 |
Capital expenditures
|
M AUD
| ...... | ...... |
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Corporate Filings & Presentations:
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