Masset Formation | |
Type: | Geological formation |
Age: | Oligocene–Miocene |
Prilithology: | Calc-alkaline volcanic rocks |
Country: | Canada |
The Masset Formation is a volcanic formation on Graham Island of Haida Gwaii in British Columbia, Canada. It consists of calc-alkaline volcanic rocks related to subduction of the pre-existing Farallon Plate.[1] The Masset Formation is part of the Pemberton Volcanic Belt.[1]