Pebble Creek Formation

Pebble Creek Formation is a volcanic formation in the Garibaldi Volcanic Belt created when Mount Meager erupted about 2,350 years ago and by two rock avalanche deposits.^[1]

The two rock avalanches are not linked with the 2,350 BP eruption, although the post-eruption avalanche may have its causes in the over-steepened slopes produced by the explosive period of the eruption.^[1]

The rocks of the Pebble Creek Formation are the youngest known of the Mount Meager volcanic complex, and are made of dacite.^[1]

The formation includes a dacite lava flow, pyroclastic flows, lahars and fallout pumice.^[1]

References