Tide Pools Cabrillo Beach Field Trip Stop #4 ⇦ | Home | ⇨ Quiz!


The wave cut terrace that forms the tide pool areas.


The bedrock that forms the marine terrace/tide pools are a part of the Monterey Formation, Altamira Shale Member, and include siltstones, diatomite, sandstones and conglomerates.


Green sea anemone


Purple sea urchins in their burrows, circa 2011.


Brown cowrie


A chiton


A sea hare.


Sea Hare (Aplysia californica)


Sea Hare (Aplysia californica)



Sea Grass and Kelp


Sea grass on bedrock. If you look closely, you can see kelp in the waves. Just offshore from the tide pool area is a small kelp forest.

Boulder showing several angular unconformities
Siltstone boulder (about 1.5 m high) showing several angular unconformities (yellow lines). Angular unconformities form when bedding become tilted at some angle, then the surface is eroded; the beds (white lines) are now at an angle to the erosional surface. Mouse over image to see the interpreted image.


Outer Beach   Stop #4 ⇦ | Home | ⇨ Quiz!