A Submarine ridge no deeper than 600 feet (one hundred eighty metres) connects the island physically with North The usa. Structurally, Greenland is surely an extension of the Canadian Defend, the tough plateau from the Canadian North that is definitely produced up of difficult Precambrian rocks. dominates North Atlantic Ocean https://zopedirectory.com/listings80706/5-simple-statements-about-trip-to-greenland-explained