Map of the Celtic Sea, an arm of the Atlantic.

Coccoliths in the Celtic Sea. [1]

The Celtic Sea (Irish: An Mhuir Cheilteach; Welsh: Y Môr Celtaidd) is the area of the Atlantic Ocean off the south coast of Ireland. It is bounded to the east by Saint George's Channel, the Bristol Channel and the English Channel, as well as adjacent portions of Wales, Cornwall and Brittany. The Celtic heritage of the bounding lands give the sea its name, first proposed by E. W. L. Holt in 1921. The northern portion of this sea had previously been considered part of Saint George's Channel and the southern part had no common name; the need for a common name came to be felt because of common geology and hydrology. The name is now commonly used by workers in the oil and fishing industries. Image File history File links Download high-resolution version (431x719, 24 KB) en: Map of the Celtic Sea. ... Image File history File links Download high-resolution version (431x719, 24 KB) en: Map of the Celtic Sea. ... Download high resolution version (1534x1618, 278 KB)PIA03441: Coccoliths in the Celtic Sea 7mb tiff available at: http://photojournal. ... Download high resolution version (1534x1618, 278 KB)PIA03441: Coccoliths in the Celtic Sea 7mb tiff available at: http://photojournal. ... Coccoliths are individual plates of calcium carbonate formed by coccolithophores (single-celled algae such as Emiliania huxleyi) which are arranged around them in a coccosphere. ... Welsh redirects here, and this article describes the Welsh language. ... Relief map of the Irish Sea. ... The location of the Bristol Channel The Severn Bridge and Bristol Channel, looking northwestward from England towards Wales The Bristol Channel coast at Ilfracombe, North Devon, looking west towards Lee Bay The Bristol Channel is a major inlet in the island of Great Britain, separating South Wales from South West... Satellite view of the English Channel The English Channel (French: La Manche (IPA: ), the sleeve) is the part of the Atlantic Ocean that separates the island of Great Britain from northern France and joins the North Sea to the Atlantic. ... Motto: (Welsh for Wales forever) Anthem: Hen Wlad Fy Nhadau Capital Cardiff Largest city Cardiff Official language(s) Welsh, English Government Constitutional monarchy  - Queen Queen Elizabeth II  - Prime Minister of the UK Tony Blair MP  - First Minister Rhodri Morgan AM Unification    - by Gruffudd ap Llywelyn 1056  Area    - Total 20,779... Cornwall (Cornish: Kernow) is a county in South West England on the peninsula that lies to the west of the River Tamar. ... Brittany has a spectacular coastline Flag of Brittany (Gwenn-ha-du) Historical province of Brittany région of Bretagne, see Bretagne. ... Celts redirects here. ... E. W. L. Holt Ernest William Lyons Holt (October 17, 1864 – June 10, 1922) was an eminent British marine naturalist and biologist specialized in ichthyology, the study of fish. ... World geologic provinces Oceanic crust  0-20 Ma  20-65 Ma  >65 Ma Geologic provinces  Shield  Platform  Orogen  Basin  Large igneous province  Extended crust Geology (from Greek γη- (ge-, the earth) and λογος (logos, word, reason))[1] is the science and study of the solid matter of a celestial body, its composition... Water covers 70% of the Earths surface. ... Oil Exploration is the search by petroleum geologists for hydrocarbon deposits beneath the Earths surface. ... Salmon for sale at a marketplace The Fishing industry is the commercial activity of fishing and producing fish and other seafood products. ...

The southern and western boundaries are less clearly defined. Holt suggested the 200 fathom (366 m) marine contour and Ushant; the International Hydrographic Organization definition uses plumb lines and extends slightly further south. A fathom is a unit of length equivalent to 6 feet or 2 yards. ... The metre, or meter (U.S.), is a measure of length. ... The Comet Nucleus Tour (CONTOUR) was a Discovery-class space mission. ... Ushant (in French Ouessant, in Breton Enez Eusa) is an island in the English Channel which marks the north-westernmost point of European France. ... The International Hydrographic Organization (IHO) is an intergovernmental international organization established in 1921. ... A plumb line is a reference line guided by a string or cord weighted at the end with a large weight known as a plumb bob. ...

References

• IHO Limits of Oceans and Seas (page 39, section 21A).

External links

• Map of Europe showing the Celtic Sea
• cs-locale.png Map of the Celtic Sea: Sheffield Centre for Earth Observation Science
• Coccoliths in the Celtic Sea: a bloom of phytoplankton in the Celtic Sea, visible from space in an MISR image, June 4, 2001