Marban
Phase: Exploration
Mine Type: Pit, Underground
Canada, province of Quebec. The deposit is located in the western portion of the province, about midway between the towns of Val-d’Or and Malartic.
Located on the north side of Highway 117, approximately 15 km northwest of Val-d’Or, Quebec and immediately east of Canadian Malartic Partnership’s Camflo property. The project is accessible by the Gervais Road, a well-maintained all-weather gravel road running north from Highway 117. It provides access to the historic Norlartic, Kierens, and Marban mines. The Camflo road provides access to the western part of the project area. Winter access for snowmobiles and all-terrain vehicles is provided by trails and winter roads.
History:
Exploration conducted dates back to at least 1940 and includes geologic mapping, sampling, compilation of geological, structural, and geochemical data, geophysical prospecting, trenching, and extensive drilling from the surface and underground. At least 14 different companies explored and/or mined on parts of the property in the period of 1940 through 1994, including Norbenite Malartic Mines, Marbenor Malartic Mines, Little Long Lac Gold Mines Limited (Little Long Lac), Norlartic Mines Ltd., Marban Gold Mines (Marban Mines), East Malartic Mines, Malartic Gold Fields Ltd., First Canadian Gold Corp., Lloyd Harvey, Brominco Inc. (Brominco), Gold Hawk Resources, SOQUEM (Québec Department of Mines), Villebon Resources, Lac Minerals (Lac), Aur, and International Thunderwood Exploration.
Mining at the deposit was carried out by Marban Gold Mines from 1961 to 1974. A total of 1.983 million tonnes of ore with an average grade of 5.3 g/t were mined, yielding approximately 330,000 ounces of gold.
Note:
For MRE effective date: 27 February 2022:
- The lower cut-off grade for reporting the Mineral Resource is 0.30 g/t Au based on a recovery of 93.7%, Processing + G&A costs of C$18.2/tonne, Mining Cost of $2.40/tonne and a US$1900/oz Au price. The underground resource has been filtered manually to remove isolated blocks and has been reported using a 3.0 g/t Au lower cut-off for Marban.
- The table presents the combined resources for open-pit and underground extraction. Average gold grades were calculated as the ratio of contained gold (kg) to ore tonnage, rounded to two decimal places. Calculation goldmap.info
- In general, a minimum thickness of 3 m was used when interpreting the mineralized bodies.
- The MRE is based on subblock models with a main block size of 5 m x 5 m x 5 m, with subblocks of 2.5 m x 2.5 m x 2.5 m.
- Tonnage have been expressed in the metric system, and gold metal content has been expressed in troy ounces. Calculation of the amount of gold in metric kg - goldma.info
- The tonnages have been rounded to the nearest 1,000 tonne and the metal content has been rounded to the nearest 1,000 ounce.
Mineral Resources (Feb. 27, 2022)
| Class | Ore (ktonnes) | Au grade (g/t) | Au (kg) | Au (oz * 1000) |
|---|---|---|---|---|
| Indicated | 52599.00 | 1.04 | 54734.25 | 1759.00 |
| Inferred | 1898.00 | 2.54 | 4816.66 | 155.00 |
Source:
-
Marban Engineering NI 43-101 Technical Report and Mineral Resources Estimate
(13.04.2022, Val-d’Or)
Authors: Raponi Tommaso Roberto, Purchase James, Gariepy Louis, Vigneau Sébastien