Pyramid Formation (British Columbia)

Pyramid Formation
Stratigraphic range: 1.2–0.9 Ma
↓
TypeGeological formation[1]
Unit ofMount Edziza volcanic complex[2]
UnderliesIce Peak Formation, Edziza Formation[1]
OverliesNido Formation[1]
Lithology
PrimaryTrachyte, comendite, pantellerite[1]
OtherBasalt[1]
Location
Coordinates57°30′N 130°36′W / 57.5°N 130.6°W / 57.5; -130.6[2]
RegionBritish Columbia[1]
CountryCanada[1]
Type section
Named forThe Pyramid[1]
Named bySouther et al., 1984[3]

The Pyramid Formation is a stratigraphic unit of Pleistocene age in northwestern British Columbia, Canada.

  1. ^ a b c d e f g h Souther, J. G. (1992). The Late Cenozoic Mount Edziza Volcanic Complex, British Columbia. Geological Survey of Canada (Report). Memoir 420. Canada Communication Group. pp. 100, 129, 132, 133, 134, 246, 248, 249, 267. doi:10.4095/133497. ISBN 0-660-14407-7.
  2. ^ 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.
  3. ^ "Pyramid Formation". Lexicon of Canadian Geologic Units. Government of Canada. Retrieved 2023-08-04.