Overview
Stage | Permitting |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Processing |
- Heap leach
- Counter current decantation (CCD)
- Carbon in column (CIC)
- Carbon adsorption-desorption-recovery (ADR)
- Solvent Extraction & Electrowinning
- Cyanide (reagent)
|
Mine Life | 4 years (as of Jan 1, 2017) |
Çamyurt represents a very low capital and high return project given its close proximity and ability to utilize infrastructure at Agi Dagi. |
Company | Interest | Ownership |
Alamos Gold Inc.
|
100 %
|
Indirect
|
Kuzey Biga Madencilik San. Tic. A.S.
|
100 %
|
Direct
|
Deposit Type
- Epithermal
- Breccia pipe / Stockwork
Source:
p.78
Summary:
The Çamyurt Gold deposit is high-sulphidation, epithermal gold deposit. Gold mineralization at Çamyurt is hosted within Miocene age andesitic tuffs or felsic volcanic rocks and phreatic breccias typical in some deposits of this type.
Drilling at Çamyurt has defined a mineralized zone that is continuous for at least 1,200 metres ("m") along strike with additional potential to extend mineralization to the northeast and at depth. Gold mineralization is hosted within a tabular, steeply-dipping oxidized zone starting at surface and with a cross-strike width up to 150m.
Source:
p.520
Summary:
The Çamyurt deposit will be mined by conventional open pit hard rock mining methods. Alamos Gold plans to utilize a contract mining company to move the mineralized material and waste from the pit.
Çamyurt will be developed on the basis that the Project will have minimal stand-alone infrastructure. Mineralized material from Çamyurt will be mined and trucked approximately 8 km to be processed through the infrastructure at Agi Dagi once the Baba and Deli pits have been mined out.
A traditional drill, blast, load and haul sequence will be used to deliver mineralized material to the crushing circuit at Agi Dagi. Waste produced over the life of the mine will be sent to the waste rock dump located near the Çamyurt pit, or backfilled into the pit once the ultimate pit bottom has been achieved.
Source:
p.520
Processing
- Heap leach
- Counter current decantation (CCD)
- Carbon in column (CIC)
- Carbon adsorption-desorption-recovery (ADR)
- Solvent Extraction & Electrowinning
- Cyanide (reagent)
Flow Sheet:
Summary:
Çamyurt has been designed as a 15,000 t/d mining operation with mineralized material to be hauled approximately 8 km to the crushing circuit at Agi Dagi where it will be processed by primary and secondary crushing to a nominal size of 26 mm. The secondary crushed mineralized material will be drum agglomerated, stacked on the leach pad by conveyor stacking and processed with conventional heap leaching methods.
The crushed mineralized material will be stacked in 10 m lifts on the Agi Dagi leach pad facility which will be expanded in three phases and have an ultimate capacity of 73.6 Mt. This is sufficient to accommodate the 54.4 Mt Agi Dagi Mineral Reserve and 16.6 Mt of mineralized material included in the PEA mine plan for Çamyurt. A dilute cyanide solution will be applied to the crushed mineralized material over a 90-day leaching cycle with the pregnant solution collected and processed through the ADR plant where gold and silver doré will be produced.
Recoveries & Grades:
Commodity | Parameter | Avg. LOM |
Gold
|
Recovery Rate, %
| 76 |
Gold
|
Head Grade, g/t
| 0.92 |
Silver
|
Recovery Rate, %
| 48 |
Silver
|
Head Grade, g/t
| 6.3 |
Projected Production:
Commodity | Units | Avg. Annual | LOM |
Gold
|
oz
| 93,200 | 373,200 |
Silver
|
oz
| 403,000 | 1,612,600 |
All production numbers are expressed as metal in doré.
Operational Metrics:
Metrics | |
Stripping / waste ratio
| 1.86 * |
Daily mining capacity
| 15,000 t of ore * |
Annual mining capacity
| 5.25 Mt of ore * |
Waste tonnes, LOM
| 30,874 kt * |
Ore tonnes mined, LOM
| 16,580 kt * |
Total tonnes mined, LOM
| 47,454 kt * |
Tonnes milled, LOM
| 16,580 kt * |
* According to 2017 study.
Reserves at December 31, 2019:
Category | Tonnage | Commodity | Grade | Contained Metal |
Measured
|
513 kt
|
Gold
|
1 g/t
|
16 koz
|
Measured
|
513 kt
|
Silver
|
5.63 g/t
|
93 koz
|
Indicated
|
17,208 kt
|
Gold
|
0.89 g/t
|
492 koz
|
Indicated
|
17,208 kt
|
Silver
|
6.15 g/t
|
3,404 koz
|
Measured & Indicated
|
17,721 kt
|
Gold
|
0.89 g/t
|
508 koz
|
Measured & Indicated
|
17,721 kt
|
Silver
|
6.14 g/t
|
3,497 koz
|
Inferred
|
2,791 kt
|
Gold
|
0.95 g/t
|
85 koz
|
Inferred
|
2,791 kt
|
Silver
|
5.77 g/t
|
518 koz
|
Commodity Production Costs:
| Commodity | Units | Average |
Total cash costs
|
Gold
|
USD
|
604 / oz *†
|
All-in sustaining costs (AISC)
|
Gold
|
USD
|
645 / oz *†
|
Assumed price
|
Gold
|
USD
|
1,250 / oz *
|
* According to 2017 study / presentation.
† Net of By-Product.
Operating Costs:
| Units | 2017 |
OP mining costs ($/t milled)
|
USD
| 9.48 * |
Processing costs ($/t milled)
|
USD
| 2.55 * |
Total operating costs ($/t milled)
|
USD
| 14 * |
* According to 2017 study.
2017 Study Costs and Valuation Metrics :
Metrics | Units | LOM Total |
Pre-Production capital costs
|
$M USD
|
10.2
|
Sustaining CapEx
|
$M USD
|
9.4
|
Closure costs
|
$M USD
|
5.9
|
Total CapEx
|
$M USD
|
25.5
|
OP OpEx
|
$M USD
|
157.1
|
Processing OpEx
|
$M USD
|
42.3
|
G&A costs
|
$M USD
|
33.1
|
Total OpEx
|
$M USD
|
232.6
|
Net revenue (LOM)
|
$M USD
|
466.5
|
After-tax Cash Flow (LOM)
|
$M USD
|
173.8
|
After-tax NPV @ 0%
|
$M USD
|
173.8
|
After-tax NPV @ 5%
|
$M USD
|
111.4
|
After-tax NPV @ 10%
|
$M USD
|
73
|
After-tax NPV @ 8%
|
$M USD
|
86.2
|
After-tax IRR, %
|
|
253
|
After-tax payback period, years
|
|
1.4
|
Mine Management:
Job Title | Name | Profile | Ref. Date |
Consultant - Civil Infrastructure
|
Chiaramello Paolo
|
|
Feb 22, 2017
|
Consultant - Recovery Methods & Costs
|
Andrew Cormier
|
|
Feb 22, 2017
|
General Manager
|
Austin Hemphill
|
|
Feb 8, 2021
|
Project Manager
|
Marcelo Martínez
|
|
Feb 8, 2021
|
VP, Technical Services
|
Chris Bostwick
|
|
Feb 8, 2021
|
Corporate Filings & Presentations: