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The document summarizes new findings about the Jurassic Bonanza arc of Vancouver Island, Canada. It presents evidence that the arc developed in three distinct periods between 205-180 million years ago, with the oldest and youngest periods preserving volcanic and plutonic sections in the upper crust, while the middle period at 195-180 million years represented almost exclusively by plutons emplaced in the middle crust below the brittle-ductile transition. Unlike previous models, the new data show that the de
- Author
- Agustin Cardona
- Language
- EN