Spences Bridge Group
The Spences Bridge Group is a 100-million-year-old volcanic group of the southern Intermontane Belt in British Columbia, Canada. It consists of two stratigraphic units called the Pimainus Formation and the Spius Formation.[1] The Spius Formation represents a shield volcano whereas the underlying Pimainus Formation is interpreted to be a set of stratovolcanoes.[1]
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References[edit]
- ^ a b "Arc and intraplate volcanism in the Spences Bridge Group: Implications for Cretaceous tectonics in the Canadian Cordillera" (PDF). Archived (PDF) from the original on 2019-12-22. Retrieved 2023-05-26.
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