Mid-Labrador Ridge

{{Short description|Mid-ocean ridge in the Labrador Sea}}

The Mid-Labrador Ridge was a mid-ocean ridge in the Labrador Sea that represented a divergent boundary between the Greenland and North American plates during the Paleogene. The ridge extended from the South Greenland triple junction in the southeast to the Davis Strait area in the northwest.{{cite journal | last1 = Oakey | first1 = Gordon N. | last2 = Stephenson | first2 = Randell | title = Crustal structure of the Innuitian region of Arctic Canada and Greenland from gravity modelling: implications for the Palaeogene Eurekan orogen | journal = Geophysical Journal International | volume = 173 | issue = 3 | page = 1041 | publisher = Royal Astronomical Society | year = 2008 | issn = 0956-540X | doi = 10.1111/j.1365-246X.2008.03784.x | doi-access = free | bibcode = 2008GeoJI.173.1039O }} Seafloor spreading along the Mid-Labrador Ridge discontinued about 40 million years ago when the mid-ocean ridge became essentially extinct.{{cite book|last=Herman|first=Yvonne|title=Marine Geology and Oceanography of the Arctic Seas|publisher=Springer-Verlag|page=92|year=1974|isbn=978-3-642-87413-0}}

The Mid-Labrador Ridge is now mostly buried under sediment, exposed only as a northwesterly trend of seamounts in the southeastern part of the Labrador Basin.{{cite book|last=Litvin|first=V. M.|page=29|title=The Morphostructure of the Atlantic Ocean Floor: Its Development in the Meso-Cenozoic|year=1984|publisher=D. Reidel Publishing Company|location=Dordrecht, Holland|isbn=978-94-009-6247-7}}