Geology and Minerals

Asphalt volcano

Asphalt volcanoes are a rare variety of submarine volcano (seamount). They were unknown before 2003. Several examples have been found along the coasts of the United States and Mexico and elsewhere, some still showing activity. Asphalt volcanoes resemble other seamounts however they are made entirely of asphalt. The structures are thought to form above geologic faults through which petroleum seeps from deeper in the Earth's crust.

Also on this shelf

See also

• ▸Bayview Park, San Francisco
• ▸Jo Baer
• ▸Carbon

Uncatalogued shelf

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