Mt. Sutro Geology & Paleo Tour

Learn about fascinating geologic evidence contained in the rocks

underneath Mt. Sutro of ancient island arcs, lost marine basins,

oceanic trenches and subduction along the Pacific Ocean Ring of

Fire and the important role played by radiolarian fossils contained

in chert beds. All part of the interesting story of California's

assembly from microcontinents and island arcs rafting across the

Pacific Basin over the last 400 million years.