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What is the role of plate tectonics?

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Developed from the 1950s through the 1970s, plate tectonics is the modern version of continental drift, a theory first proposed by scientist Alfred Wegener in 1912. Wegener didn't have an explanation for how continents could move around the planet, but researchers do now. read more

Mountain Building. Studies of the mountain ranges and the mapping of plate boundaries associated with plate tectonics give us a picture of the process of mountain building. A unique feature of the Earth in the solar system is the presence of linear mountain ranges caused by the convergent boundary of two tectonic plates. read more

USGS Plates cover the entire Earth, and their boundaries play an important role in geologic happenings. The movement of these plates atop a thick, fluid "mantle" is known as plate tectonics and is the source of earthquakes and volcanoes. read more

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