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  1. Plate tectonics | Definition, Theory, Facts, & Evidence ...

    Feb 11, 2026 · Plate motions cause mountains to rise where plates push together, or converge, and continents to fracture and oceans to form where plates pull apart, or diverge.

  2. Plate tectonics - Wikipedia

    Plate tectonics came to be accepted by geoscientists after seafloor spreading was validated in the mid- to late 1960s. The processes that result in plates and shape Earth's crust are called tectonics.

  3. Plate Tectonics – Definition, Theory, Plate Boundaries, and ...

    Nov 23, 2025 · The theory of plate tectonics is the unifying framework of modern geology. It explains how the Earth’s rigid outer shell — the lithosphere — is divided into large slabs called tectonic plates, …

  4. Plate Tectonics and Volcanoes - U.S. National Park Service

    Jun 8, 2022 · Earth’s outer shell is broken into tectonic plates that move relative to one another. The plates rip apart at divergent plate boundaries, crash together at convergent plate boundaries, and …

  5. Plate Tectonics: Definition, Theory, Types, Facts, & Evidence

    Feb 17, 2023 · Thus, plate tectonics is a scientific theory that deals with the large-scale motion of the plates that makes up the Earth’s lithosphere. From the deepest trench of oceans to the highest …

  6. Plate Tectonics - National Geographic Society

    May 21, 2025 · The theory of plate tectonics revolutionized the earth sciences by explaining how the movement of geologic plates causes mountain building, volcanoes, and earthquakes.

  7. Plate Tectonics Map - Plate Boundary Map - Geology.com

    The map above shows names and generalized locations of Earth's major tectonic plates. These plates move and interact with one another to produce earthquakes, volcanoes, mountain ranges, ocean …