Hugh Southee at Lake Louise with Mount Fairview in the background. The rock wall is Gog Group quartzite.

The Geology of the Burgess Shale (Part 1): The Gog Group

The Gog Group underlies the Cambrian rocks where the Burgess Shale fossils are found.  Those of you not wearing a bathing suit and a life preserver would be ill prepared if you somehow found yourself in Yoho National Park in the Cambrian. Beginning in the Early Cambrian (~541 million years ago), sea levels rose and […]

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