Trip Report by Leader David Cook
On Sunday, 11 August, 2019, seventeen persons participated in a joint event for Nature Vancouver and the Cordilleran Section of the Geological Association of Canada (http://www.gac-cs.ca). (A detailed guide titled, Self-guiding Geology Tour of Stanley Park is available HERE.)
Some of the highlights were:
- A large glacial erratic on the beach at Third Beach
- A dyke that can be seen at low tide
- The tilted bedding of the sandstones due to the rising of the North Shore mountains.
- Concretions formed in place in the sandstones. Proof of this is bedding that can be seen passing through the concretion.
- Imperfect columnar jointing in basalts at Prospect Point that tell us that the basalt was intruded between beds of sandstone.
- Wave-cut platforms and notches formed by past and present sea-levels.