Regional deformation in southern British Columbia continued from Late Jurassic to Eocene, progressing from Vancouver Island and the Coast Range in the west eastward to the Rocky Mountains. The batholiths, reflecting this progression, are dioritic to granodioritic on Vancouver Island, predominantly granodioritic in the Coast Range, and principally granitic in central and eastern British Columbia. Regional linear elements-trends of formations, folds, and faults-tend to parallel the margins of the major intrusions. The pre-batholithic rocks were deformed approximately at the time of batholithic intrusion.
A detailed structural map of southern British Columbia illustrates these features.