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North American Plate: Geologic Timeline of Western North America, Core-Mantle Boundary, Tectonic Plate, Terrane, Mantle, Mantle Plume, Craton, Hotspot
North American Plate Geologic Timeline of Western North America CoreMantle Boundary Tectonic Plate Terrane Mantle Mantle Plume Craton Hotspot High Quality Content by WIKIPEDIA articles! The North American Plate is a tectonic plate covering most of North America, Greenland and parts of Siberia and Iceland. 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 co... more »ntinental 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.« less