Franciscan

Basement domain in the Western Cordillera

Geologic information

Region Western Cordillera
Alternate names Franciscan equivalents
Crust
Formation age: 165-50 Ma
Accretion
Type: Underthrusting
Age: 165-50 Ma
Notes In NW CA, accreted rocks as young as 15 Ma (McLaughlin and others, 1982)

Geographic extent

Bibliographic references