Rocks Lifted by Pyroclastic Flows (IMAGE)

University at Buffalo

Rocks Lifted by Pyroclastic Flows

Caption

Photographs scanned from Kodachrome slides show dark rocks embedded in layers of ash. The rocks were picked up and moved across the landscape by pyroclastic flows when the Silver Creek caldera, a supervolcano, erupted 18.8 million years ago.

Credit

Credit: Greg A. Valentine

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