A Submarine ridge no further than 600 toes (a hundred and eighty metres) connects the island physically with North America. Structurally, Greenland can be an extension of the Canadian Shield, the rough plateau from the Canadian North that is definitely created up of difficult Precambrian rocks. See the warm magical https://ppxdhlp.ampedpages.com/an-unbiased-view-of-trip-to-greenland-49835058