Overview
| Stage | Preliminary Economic Assessment |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Mine Life | 20 years (as of Jan 1, 2015) |
Source:
p. 12,13, 28, 41
Canadian Century and Augyva formed the Duncan Lake Joint Venture.
Canadian Century is the operator of the Duncan Lake Joint Venture.
Century Iron Ore Holdings Inc. owns Canadian Century, a holding company that holds the Duncan Lake Property, in which Canadian Century has a 68% interest earned under the Duncan Lake Joint Venture Agreement with Augyva and in respect of which Canadian Century has funded expenditures.
Contractors
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Summary:
The stratiform, iron-rich deposits in the world are classified as Lake Superior and Algoma types banded iron formations (“BIF”). The BIF are interpreted as finely bedded sedimentary rocks of chemical origin.
The Canadian Lake Superior-type iron formations are the most important source of iron, followed by the deposits of Algoma-type iron formations. Algoma-type iron formations are predominantly found in Archean greenstone belts, while the Lake Superior type is generally of Paleoproterozoic age.
The Lake Superior type of iron formation formed in stable continental shelf and platform settings, whereas the Algoma type is associated with volcanic arcs (tectonically active environment, greenstone belts) or rift zones and related volcanism. However, a complete gradation exists from one type to the other, as the Algoma type iron formation can be deposited at considerable distances from the volcanic centres.
The Algoma deposits are interbedded with felsic to ultramafic volcanic and volcaniclastic rocks, greywacke, black shale, argillite and chert. The Lake Superior iron formation is associated with a variety of shallow marine sedimentary rocks including quartzite, shale and carbonate rocks, and subordinate amounts of felsic to mafic volcanic rocks.
The Lake Superior type, formed on the large areal extents of the platforms, typically have higher lateral continuity and thickness than the Algoma type BIF originating from the more restricted vo ........
Summary:
The mining method selected for the Project is a conventional open pit drill and blast operation with rigid frame mining haul trucks and hydraulic excavators. Pre-production stripping of waste and overburden material will be mined by a contractor.
Vegetation, topsoil and overburden will be stripped and stockpiled for future reclamation use. The mineralization and waste rock will then be drilled, blasted and loaded into rigid frame haul trucks with face shovel hydraulic excavators. The mineralized material will be hauled to a primary crusher and waste rock will be hauled to the waste dump.
To properly manage water infiltration into the pit, a sump will be established at the lowest point on the pit floor. Water collected in this sump will be pumped to a collection point at surface.
Source:
Summary:
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Projected Production:
| Commodity | Product | Units | LOM |
|
Iron
|
Concentrate
|
kt
| 228,700 |
|
Iron
|
Pellets
|
Mt
| 238 |
Operational Metrics:
| Metrics | |
|
Stripping / waste ratio
| 1.8 * |
|
Waste tonnes, LOM
| 1,475 Mt * |
|
Total tonnes mined, LOM
| 2,293 Mt * |
|
Tonnes milled, LOM
| 817 Mt * |
|
Annual production capacity
| 12,000,000 t of iron pellets * |
|
Mining scale, tpd
| 328,000 t |
* According to 2015 study.
Reserves at March 31, 2016:
| Category | Tonnage | Commodity | Grade |
|
Measured
|
405.6 Mt
|
Iron
|
23.92 %
|
|
Indicated
|
644.9 Mt
|
Iron
|
24.73 %
|
|
Measured & Indicated
|
1,051 Mt
|
Iron
|
24.42 %
|
|
Inferred
|
563.1 Mt
|
Iron
|
24.69 %
|
Mine Management:
| Job Title | Name | Phone | Ref. Date |
|
.......................
|
.......................
|
.......................
|
Jul 27, 2021
|
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