Cold seep
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A cold seep is an area of the ocean floor where seepage of fluids rich in hydrogen sulfide, methane, and other hydrocarbons occurs, often in the form of a brine pool. Cold does not mean that the tempe
These craters mark the formation of brine pools, from which salt has seeped through the seafloor and encrusted the nearby substrate.
Bacterial mat consisting of sulfide-oxidizing bacteria Beggiatoa spp. at a seep on Blake Ridge, off South Carolina. The red dots are range-finding laser beams.
A mussel bed at the edge of the brine pool
"Roots" of tubeworms also provide a supply of hydrogen sulfide from the sediment to the bacteria inside these tubeworms.
Petroleum seep
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A petroleum seep or oil spring is a place where natural liquid or gaseous hydrocarbons escape to the Earth's atmosphere and surface, normally under low pressure or flow. Seeps generally occur above ei
Cold seep
…can be distinguished according to the depth, as shallow cold seeps and deep cold seeps. Cold seeps can also be distinguished in detail, as follows: oil/gas seeps gas seeps: methane seeps…
Naturally occurring oil seep near McKittrick, California, United States.
Petroleum seep near the Korňa in northern Slovakia.
Tar "volcano" in the Carpinteria, California, asphalt mine. Oil exudes from joint cracks in the petroliferous shale forming the floor of mine. 1906 photo, U.S. Geological Survey Bulletin 321
Tar bubble at La Brea Tar Pits, California