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Noroît Seamount
Noroit Seamount is a seamount in the Caribbean Sea, in the Anegada Passage. It is also spelled Noroît Seamount after the French survey and research vessel RV ''Le Noroît'' () which was operated by IFREMER. It is also known as Noroit Knoll. Several research projects are conducted in vicinity of Noroit Seamount. Geology The seamount is a (relatively young) inactive submarine volcano, located on the boundary between the North American Plate and the Caribbean Plate.Earthquake, Landslide, and Tsunami Hazards in the Northeastern Caribbean—Insights from a 2013 E/V Nautilus Expedition |
Anegada Passage
The Anegada Passage , also known as the Anegada Trough, is a strait in the Caribbean that separates the British Virgin Islands and the British ruled Sombrero Island of Anguilla, and connects the Caribbean and the Atlantic Ocean. It is 2300 m deep. Because the threshold depths are 1800 and 1600 m, Atlantic deep water from 1600 m level may flow into the deep areas in the Caribbean Sea. The Anegada Passage is a key shipping lane for the Panama Canal. Often called the "Oh-my-god-a Passage", it is considered a difficult passage for sailors because of the winds, waves, and swells. The Anegada Passage was the site of the 1867 Virgin Islands earthquake and subsequent tsunami. Geographic extent The multiple fault lines, ridges, and basins, including the Virgin Islands Basin, Anegada Gap, and Sombrero Basin, that form part of the general trough stretching from the southeastern Puerto Rican mainland in the Caribbean Sea to the northeastern British Virgin Island of Anegada in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scleractinians
Scleractinia, also called stony corals or hard corals, are marine animals in the phylum Cnidaria that build themselves a hard skeleton. The individual animals are known as polyps and have a cylindrical body crowned by an oral disc in which a mouth is fringed with tentacles. Although some species are solitary, most are colonial. The founding polyp settles and starts to secrete calcium carbonate to protect its soft body. Solitary corals can be as much as across but in colonial species the polyps are usually only a few millimetres in diameter. These polyps reproduce asexually by budding, but remain attached to each other, forming a multi-polyp colony of clones with a common skeleton, which may be up to several metres in diameter or height according to species. The shape and appearance of each coral colony depends not only on the species, but also on its location, depth, the amount of water movement and other factors. Many shallow-water corals contain symbiont unicellular organis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
