The North American Plate is a tectonic plate covering most of North America, Greenland, Cuba, Bahamas, and parts of Siberia, Iceland and the Azores. It extends eastward to the Mid-Atlantic Ridge and westward to the Chersky Range in eastern Siberia. The plate includes both continental and oceanic crust. The interior of the main continental landmass includes an extensive granitic core called a craton. Along most of the edges of this craton are fragments of crustal material called terranes, accreted to the craton by tectonic actions over the long span of geologic time. It is believed that much of North America west of the Rockies is composed of such terranes.
Read more about North American Plate: Geographic Extent, Hotspots, Plate Motion
Famous quotes containing the words north, american and/or plate:
“I knew that the wall was the main thing in Quebec, and had cost a great deal of money.... In fact, these are the only remarkable walls we have in North America, though we have a good deal of Virginia fence, it is true.”
—Henry David Thoreau (18171862)
“The ruin of the human heart is self-interest, which the American merchant calls self-service. We have become a self- service populace, and all our specious comfortsthe automatic elevator, the escalator, the cafeteriaare depriving us of volition and moral and physical energy.”
—Edward Dahlberg (19001977)
“I sometimes have the sense that I live my life as a writer with my nose pressed against the wide, shiny plate glass window of the mainstream culture. The world seems full of straight, large-circulation, slick periodicals which wouldnt think of reviewing my book and bookstores which will never order it.”
—Jan Clausen (b. 1943)