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Laurentian Fan

Coordinates: 43°40′N 56°10′W / 43.667°N 56.167°W / 43.667; -56.167
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The Laurentian Fan or Laurentian Abyss is an underwater depression off the eastern coast of Canada in the Atlantic Ocean.[1]

Location and origin

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Not a trench, but more of an "underwater valley", it is estimated to be at most ~19,685 feet (3.7 miles; 6.0 km) in depth. The Laurentian Fan is a product of glaciation and water currents from the Gulf of Saint Lawrence.[2] It is part of the Laurentian cone region, bound by the Laurentian Channel and the Sohm Abyssal Plain. The approximate coordinates are 43°40′N 56°10′W / 43.667°N 56.167°W / 43.667; -56.167.

Ecosystem

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Towards the end of the 1980s, it was discovered unexpectedly that the fan is the site of hydrothermal vents with their own ecosystems functioning in the absence of sunlight. These supported organisms such as vesicomyid and thyasirid clams, as well as marine gastropods and other epifauna similar to those found in hydrothermal and cold seep environments elsewhere.[3]

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See also

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References

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Notes
  1. ^ Piper, D.J.W.; Stow, D.A.V.; Normark, W.R. (1985). "Laurentian Fan, Atlantic Ocean". In Bouma, A.H.; Normark, W.R.; Barnes, N.E. (eds.). Submarine Fans and Related Turbidite Systems. Frontiers in Sedimentary Geology. New York: Springer. pp. 137–142. doi:10.1007/978-1-4612-5114-9_20. ISBN 9781461295709. Retrieved September 15, 2022.
  2. ^ Information gathered via a phone interview with Dr. Norm Catto of Memorial University - August 15, 2008
  3. ^ Mayer, L.A.; Shor, A.N.; Hughes Clarke, J.; Piper, D.J.W. (1988). "Dense biological communities at 3850m on the Laurentian Fan and their relationship to the deposits of the 1929 Grand Banks earthquake". Deep Sea Research Part A. Oceanographic Research Papers. 35 (8). Elsevier: 1235–1246. doi:10.1016/0198-0149(88)90079-9. ISSN 0198-0149. Retrieved September 15, 2022 – via Academia.edu.
  4. ^ Michael Bay (July 3, 2007). Transformers (film). United States: Paramount Pictures.
  5. ^ Michael Bay (June 24, 2009). Transformers: Revenge of the Fallen (film). United States: Paramount Pictures.
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