| Armadillo Formation | |
|---|---|
| Stratigraphic range: | |
 Paleogeological map showing the inferred maximum extent of the Armadillo Formation at the end of the Armadillo eruptive period | |
| Type | Geological formation[1] |
| Unit of | Mount Edziza volcanic complex[2] |
| Underlies | Ice Peak Formation, Spectrum Formation, Big Raven Formation, Nido Formation[1] |
| Overlies | Little Iskut Formation, Raspberry Formation[1] |
| Lithology | |
| Primary | Alkali basalt, comendite, trachyte[1] |
| Location | |
| Coordinates | 57°30′N 130°36′W / 57.5°N 130.6°W[2] |
| Region | British Columbia[1] |
| Country | Canada[1] |
| Type section | |
| Named for | Armadillo Peak[1] |
| Named by | Souther et al., 1984[3] |
The Armadillo Formation is a stratigraphic unit of Miocene age in northwestern British Columbia, Canada.
- ^ a b c d e f g Souther, J. G. (1992). The Late Cenozoic Mount Edziza Volcanic Complex, British Columbia. Geological Survey of Canada (Report). Memoir 420. Canada Communication Group. pp. 32, 61, 71, 246, 267. doi:10.4095/133497. ISBN 0-660-14407-7.
- ^ a b Edwards, Benjamin Ralph (1997). Field, kinetic, and thermodynamic studies of magmatic assimilation in the Northern Cordilleran Volcanic Province, northwestern British Columbia (PhD thesis). University of British Columbia. p. 10. ISBN 0-612-25005-9.
- ^ "Armadillo Formation". Lexicon of Canadian Geologic Units. Government of Canada. Retrieved 2023-08-04.