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brine pool
A brine pool is a large area of brine on the ocean basin. These pools are bodies of water that have a salinity three to five times greater than the surrounding ocean. For deep-sea brine pools, the source of the salt is the dissolution of large salt deposits through salt tectonics. The brine often contains high concentrations of methane, providing energy to chemosynthetic animals that live near the pool. These creatures are often extremophiles.〔(Extremophile life near brine pools )〕〔Eder, Wolfgang, Jahnke, Linda L., Schmidt, Mark, and Huber, Robert. Applied and Environmental Biology, 17 April 2001. "Microbial Diversity of the Brine-Seawater Interface of the Kebrit Deep, Red Sea, Studied via 16S rRNA Gene Sequences and Cultivation Methods". Accessed 10 August 2010. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC92984〕 Brine pools are also known to exist on the Antarctic Shelf where the source of brine is salt excluded during formation of sea ice. Deep-sea and Antarctic brine pools can be toxic to marine animals.
==Characteristics==
Brine pools are sometimes called seafloor "lakes" because the dense brine does not easily mix with overlying seawater. The high salinity raises the density of the brine, which creates a distinct surface and shoreline for the pool.〔(NOAA exploration of a brine pool )〕 When submarines dive into brine pools, they float on the brine surface due to the high density. The motion of a submarine can create waves across the brine-seawater interface that wash over the surrounding "shoreline".〔"The Deep" (2006), Documentary, National Geographic Channel〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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