Santa Barbara’s asphalt volcanoes

From National Geographic News: Strange undersea domes spotted off the California coast are extinct “asphalt volcanoes” made from a mixture of hardened crude oil and marine fossils … But there’s little point in harvesting the asphalt mounds for fuel. “The quality of the material is very poor. … It’s not worth something like light sweet crude,” said lead study author David Valentine, an earth scientist at the University of California, Santa Barbara. Click here to keep reading. Via Aquafornia.