Brewery Creek gold deposit, central Yukon
Description
The Brewery Creek mine is a bulk tonnage gold deposit located 57 km east of Dawson City, in central Yukon, within the foothills of the Ogilvie Mountains along the northeastern boundary of the Tintina Trench. High-level fracture-controlled gold mineralization is hosted within Cretaceous monzonite sills and Devonian Earn Group siliciclastic rocks of the Selwyn Basin. Structural controls include northeast and southeast sub-vertical shears bounded by moderately south-dipping, southeasterly-extending listric normal faults; listric faulting and sill emplacements are localized along pre-existing graphitic thrust faults. Gold occurs as sub-micron particles in solid solution with pyrite and arsenopyrite as growth bands around larger sulphide grains that are disseminated within fine quartz veinlets. The open-pit heap leach operation produces 75,000 - 80,000 ounces annually, with a stripping ratio of 1.5:1 and a cash cost of US$200/oz or less. The mineable reserves at the end of 1997 stood at 13.3 MT @ 1.44 gpt (613,000 oz).
Resources
| Name |
Format |
Description |
Link |
| Yukon Geological Survey publication metadata |
HTML |
|
https://data.geology.gov.yk.ca/Reference/42501 |
| Original metadata (https://open.yukon.ca) |
HTML |
|
https://open.yukon.ca/information/0acc482c-4e85-4b0c-a60b-5cf889d6330a |
| Report |
PDF |
|
https://ygsftp.gov.yk.ca/publications/yeg/yeg98/19_diment.pdf |