This plate includes all of Saudi Arabia, and much of the Levant (up to Iraq and Syria). The Caribbean Plate is a mostly oceanic tectonic plate underlying Central America and the Caribbean Sea off the north coast of South America. The two parallel mountain ranges influence many of the physical and cultural aspects of the Pacific Northwest. . It is released when the oceanic crust is heats and then rises and mixes with the overlying mantle. The plates are made up of crust and the lithospheric part of the mantle (Figure \(\PageIndex{2}\)), and even though they are moving all the time, and in different directions, there is never a significant amount of space between them. St. Helens in 1980. Katmai volcano did collapse, but unlike Mt. Eurasia plate, Pacific plate, Africa plate, Caribbean plate, South America plate, Cocos plate, Juan de Fuca plate. Question: Tectonic Plates Use this map to answer the following questions. Pacific plate, Australia plate, Africa plate, Scotia plate, Nazca plate, South America plate. At 20,625 square miles (53,396 square kilometers), Wrangell St. Elias National Park and Preserve is the largest U. S. national park six times the size of Yellowstone. It separates the Pacific Plate to the west from (north to south) the North American Plate, the Rivera Plate, the Cocos Plate, the Nazca Plate, and the Antarctic Plate. National Park Service sites in the Coastal Ranges of Washington, Oregon and northern California contain rugged mountains of rocks that were manufactured in the ocean, then scraped off the plate and lifted out of the sea. This plate includes all of North America, Greenland, the eastern most part of Russia, northern Japan, and the northwestern part of the Atlantic ocean. Most divergent boundaries are located at the oceanic ridges (although some are on land), and the crustal material created at a spreading boundary is always oceanic in character; in other words, it is mafic igneous rock (e.g., basalt or gabbro, rich in ferromagnesian minerals). Crater Lake partially fills the caldera of a volcano that erupted and collapsed in on Itself 7,700 years ago. Plate Tectonics | Pacific Northwest Seismic Network Accessibility StatementFor more information contact us atinfo@libretexts.org. Transform boundaries where plates slide passed each other. Gases may be trapped in them under high pressure. Remove the Oregon quarter to reveal cooled magma chamber rocks below. Modified from The Geology of our National Parks, Monuments and Seashores, by Robert J. Lillie, New York, W. W. Norton and Company, 298 pp., 2005, www.amazon.com/dp/0134905172.