Overview
Status | Temporary Suspension |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Processing |
- Heap leach
- Carbon in column (CIC)
- Carbon adsorption-desorption-recovery (ADR)
- Solvent Extraction & Electrowinning
- Cyanide (reagent)
|
Mine Life | 5 years (as of Jan 1, 2017) |
On October, 14, 2019, the Company suspended all construction activities on its Kirazl project pending the renewal of its Turkish mining concessions which expired on October 13, 2019. Although the mining concessions have not been revoked and can be renewed following this expiration date, no further construction activities can be completed until the concessions have been renewed. The Company is workingwith the Turkish Department of Energy and Natural Resources on securing the renewal of the mining concessions which will allow for a resumption of construction activities. The renewal is required from the same government department that granted the Operating Permit for Kirazl in March 2019. |
Latest News | Alamos Gold Reports Delay in Mining Concession Renewal for Kirazli Project October 14, 2019 |
Source:
p. 21
Company | Interest | Ownership |
Alamos Gold Inc.
|
100 %
|
Indirect
|
Dogu Biga Madencilik San. Tic. A.S.
|
100 %
|
Direct
|
Mineral rights for the concessions comprising Kirazli are controlled by Dogu Biga, a Turkish subsidiary of the Alamos Gold Inc.
Deposit Type
- Epithermal
- Breccia pipe / Stockwork
Summary:
The principal model for gold mineralization at the Kirazli Gold Property is a high-sulphidation, epithermal gold deposit. Examples of this kind of deposit in the world are Yanacocha, Pierina and Alto Chicama in Peru. Most high-sulphidation deposits are large, low-grade bulk-tonnage systems (Yanacocha), though vein-hosted high-sulphidation deposits also occur (El Indio).
At Kirazli, gold mineralization is hosted within heterolithic phreatomagmatic/phreatic breccia bodies cutting through Miocene-age andesitic tuffs. Mineralization can generally be subdivided into two main types:
- A regional low-grade gold zone that underlies much of Kirazli, broadly enveloping the high-grade gold zones. This low-grade mineralization occurs both above and below the redox horizon. The widespread, low-grade mineralization is interpreted to be early and may be associated with the broad epithermal alteration that resulted in the chalcedonic silica (the second silica event);
- Four elongate bodies of high-grade gold mineralization occur in the advanced argillic zone overlapping slightly the bottom of the 1 km-long silica cap and the silica roots. High-grade gold mineralization also shows a strong spatial relationship with the margins of heterolithic breccia bodies. These bodies transect the redox boundaries. The subhorizontal section below the silica cap is in oxide or sometimes in transition zone while the bottom of the vertical section associated with the silica roots is in sulphide.
- The first high-grade body (A) is followed over more than 400 m in a northsouth direction from section 30650N to section 30250N. It coincides with the subvertical silica root and the phreatic breccia pipe and extends in the advanced argillic alteration mostly east of the root. Towards the top, it flares and extends subhorizontally eastward for 100 m below the silica cap end the subhorizontal eastern extension of the phreatic breccia but affects its lower portion too. The highest grade section coincides with the flat portion below the silica cap. Grades there may be spectacular as in drill hole KD-09 with 4.6 g/t Au over 38.5 m.
- The second high-grade body (B) is followed over 150 m in a north-south direction from section 30100N to section 29950N. It coincides with the advanced argillic alteration immediately west of the silica root but does not affect it. Towards the top, it extends westward for 50 m below the silica cap and affects its lower portion too.
- The third high-grade body (C) is followed over 250 m in a north-south direction from section 30100N to section 29850N. It coincides with the advanced argillic alteration immediately east of the silica root but does not affect it. Towards the top, it extends eastward for 50 m below the silica cap and affects its lower portion too. The highest grade portion coincides with the flat portion below the silica cap. Grades there may be spectacular too as in drill hole 10-KD-143 with 5.4 g/t Au over 39.5 m.
- The fourth high-grade body (D) is followed over 100 m in a north-south direction from section 29900N to section 29800N. It only affects advanced argillic altered andesites and phreatic breccias following a vertical direction until it bends to the west below the silica cap.
Summary:
The Kirazli deposit will be mined by conventional open pit hard rock mining methods. Alamos Gold plans to utilize a contract mining company to move the ore and waste from the pit. The Mineral Reserve is the total of the Proven and Probable material that is planned for processing within the mine plan. Oxide and transition ore at Kirazli will be crushed, agglomerated, conveyed and stacked on to a heap leach pad where it will be cyanide leached for the recovery of gold and silver.
During pre-production, waste will be mined to construct the heap leach facility (KHLF) foundation. Any ore incurred during pre-production will be stockpiled and re-handled to the crusher once the facilities are ready for ore processing. After a six month ramp-up period, the mine is expected to produce ore at a rate of 15,000 t/d (5.25 Mt/a) for five years. Waste produced over the mine life will be used for construction of the KHLF foundation, backfilled into the pits once mining is complete or sent to the waste rock storage facility.
Processing
- Heap leach
- Carbon in column (CIC)
- Carbon adsorption-desorption-recovery (ADR)
- Solvent Extraction & Electrowinning
- Cyanide (reagent)
Flow Sheet:
Summary:
The following design criteria are for engineering, design and specification of the process requirements for the Kirazli Project. The process facilities encompass the following operations for 15,000 dry metric tonnes per day (dMt/d) operation:
- Primary crushing and coarse ore stockpile;
- Secondary crushing;
- Agglomeration;
- Heap leaching;
- Carbon adsorption, desorption and recovery;
- Electrowinning and refining;
- Water treatment; and
- Reagents.
ROM at nominally minus 800 mm (P100 will be 800 mm and P80 will be 64.7 mm), will be fed into the dump hopper that discharges using an apron feeder at a rate of 833 t/h. The dump hopper area is equipped with water and compressed air for dust suppression. The apron feeder will discharge into a vibratory grizzly that separates the ore at 150 mm. Undersize from the vibratory grizzly discharges onto the primary crushing discharge conveyor. Oversize from the vibratory grizzly is fed to the pr ........

Recoveries & Grades:
Commodity | Parameter | Avg. LOM |
Gold
|
Recovery Rate, %
| ......  |
Gold
|
Head Grade, g/t
| 0.79 |
Silver
|
Recovery Rate, %
| ......  |
Silver
|
Head Grade, g/t
| 12 |
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Reserves at December 31, 2019:
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven
|
670 kt
|
Gold
|
1.15 g/t
|
25 koz
|
Proven
|
670 kt
|
Silver
|
16.94 g/t
|
365 koz
|
Probable
|
33,191 kt
|
Gold
|
0.68 g/t
|
727 koz
|
Probable
|
33,191 kt
|
Silver
|
9.27 g/t
|
9,892 koz
|
Proven & Probable
|
33,861 kt
|
Gold
|
0.69 g/t
|
752 koz
|
Proven & Probable
|
33,861 kt
|
Silver
|
9.42 g/t
|
10,257 koz
|
Indicated
|
3,056 kt
|
Gold
|
0.43 g/t
|
42 koz
|
Indicated
|
3,056 kt
|
Silver
|
2.71 g/t
|
266 koz
|
Inferred
|
7,694 kt
|
Gold
|
0.61 g/t
|
152 koz
|
Inferred
|
7,694 kt
|
Silver
|
8.71 g/t
|
2,155 koz
|
Mine Management:
Job Title | Name | Profile | Ref. Date |
.......................
|
.......................
|
|
Feb 27, 2020
|
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Aerial view:
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