Huge Asphalt Volcanoes Discovered Off California

Ker Than
for National Geographic News
Published April 26, 2010

Strange undersea domes spotted off the California coast are extinct "asphalt volcanoes" made from a mixture of hardened crude oil and marine fossils, according to a new study.

news.nationalgeographic.com...

I found this while doing some other research on volcanoes and thought it was very interesting. I was not aware there were asphalt volcanoes.

Here is a thread from 2004 that also gives some info about the subject.

www.abovetopsecret.com...

please pardon my stupid question
but that article title reads

"Huge Asphalt Volcanoes Discovered Off California"

yet the first paragraph states they were first discovered
in 2007. So shouldn't the title read "re-discovered"??
a lil misleading in any case.

back to the OP

what piqued my interest was their use of the
word OIL. Some of those deposits were oil
based and caused oil slicks on the ocean surface.
If so, why aren't we drilling 10 miles off this
coast???