If you look west toward Second Beach a mammoth rock stands out on the shoreline.
These large boulders are also known as glacial erratics. Hard to imagine this multi-ton monster was carried kilometres before being deposited here by the melting glacier.
This giant erratic boulder is a metamorphic rock known as gneiss (pronounced “nice”).
Metamorphic rocks form from pre-existing rocks of all sorts—igneous, sedimentary and even older metamorphic rocks. High temperatures and immense pressure deep within the Earth cause re-crystallization of minerals and reshaping of rocks to occur. Old rocks morph into new ones!
Challenge: Metamorphic Mania!
The Canadian Shield is composed mainly of metamorphic rocks such as gneiss. It is also the most common rock type that we see on the Awenda shoreline. Look for the obvious banding pattern that will show an alignment of grains. When the rock is wet it illuminates the kaleidoscope of mineral colours. Take a photo and tweet it to us @FriendsofAwenda #AwendaGeoChallenge
Walk approximately 15m West of the Beach Platform in order to reach Stop 4