Biological Communities at the Florida Escarpment Resemble Hydrothermal Vent Taxa
Biological Communities at the Florida Escarpment Resemble Hydrothermal Vent Taxa
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DOI：
10.1126/science.226.4677.965
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发表时间：
1984-11
期刊：
影响因子：
56.9
通讯作者：
C. Paull;B. Hecker;R. Commeau;R. P. Freeman-Lynde;C. Neumann;W. Corso;S. Golubić;J. Hook;
中科院分区：
文献类型：
--
作者：
C. Paull;B. Hecker;R. Commeau;R. P. Freeman-Lynde;C. Neumann;W. Corso;S. Golubić;J. Hook;
在墨西哥湾深海区域发现了大型表栖动物类群的密集生物群落，其与在东太平洋海隆的洋脊顶部热液喷口处发现的群落相似。这些生物组合出现在佛罗里达陡崖底部的被动大陆边缘，即密西西比扇远端相对不透水的半远洋黏土与佛罗里达台地的节理状白垩纪石灰岩之间的交界面。这些动物群显然是由在接近环境温度下渗出到海底的富含硫化物的高盐度海水滋养的。
Dense biological communities of large epifaunal taxa similar to those found along ridge crest vents at the East Pacific Rise were discovered in the abyssal Gulf of Mexico. These assemblages occur on a passive continental margin at the base of the Florida Escarpment, the interface between the relatively impermeable hemipelagic clays of the distal Mississippi Fan and the jointed Cretaceous limestone of the Florida Platform. The fauna apparently is nourished by sulfide rich hypersaline waters seeping out at near ambient temperatures onto the sea floor.