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The History of Oakland, Told Through Its Geology

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A Street Cardus Abduction by Clyde Warholoftig

A Street Cardus Abduction looks at the geology of San Francisco that can make links, obviously, with the East Bay. The round top volcanic center was active 10 to 9 million years ago. It's all opened up by rock quarries because it turns out basalt is very good rock for making crushed stone.

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