EOSC 110 Lecture 19: BC Hazards
BrishColumbia
• BC=averycomplexarea
• Puttogether(accreted)overhundredsofmillionsofyears
• RockyMountains=large‐scalethrustfaults
• Volcanoes&Glaciers
BCOvertheYears:
Cambrian(500MillionYearsAgo):
• Passiveconnentalmargin
• Shallowseas
• Equatorial
• Earlylife:trilobites
BC Hazards
Friday,December16,2016 4:45PM
Mississippian(340MillionYearsAgo):
• Iniaonofsubducon
• Acveconnentalmargin
• Volcanicislandarcs
• ShallowSeas
• Tropical
Permian(280MillionYearsAgo):
• Subducon
• Volcanicislandarcs
• Upliofinteriorandearlymountainbuilding
• Pangeasuperconnent
• Furthernorth
LateTriassic(200MillionYearsAgo):
• Dinosaurs
• Eastwardsubducon
• Accreonofthevolcanicislandarcs
• SllpartofPangea