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  1. 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.

  2. Plate tectonics | Definition, Theory, Facts, & Evidence - Britannica

    Oct 31, 2025 · The process of plate tectonics may be driven by convection in Earth’s mantle, the pull of heavy old pieces of crust into the mantle, or some combination of both.

  3. Plate Tectonics - National Geographic Society

    May 21, 2025 · Plate tectonics is a scientific theory that explains how major landforms are created as a result of Earth’s subterranean movements. The theory, which solidified in the 1960s, transformed the …

  4. Plate Tectonics | Pacific Northwest Seismic Network

    Plate tectonics is the scientific understanding of how large, contiguous blocks of the Earth’s outermost layers—the crust and the uppermost mantle—move and interact with one another. Plate tectonics …

  5. Plate Tectonics – Definition, Theory, Plate Boundaries, and Hotspots

    May 3, 2018 · 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, …

  6. Plate Tectonics Theory, Diagrams, Boundaries - GEOLOGY.COM

    What is Plate Tectonics? Plate tectonics is a theory about how Earth's lithosphere is divided into a series of rigid plates; and, how movements of these plates produce earthquakes, volcanoes, ocean …

  7. Plate Tectonics—The Unifying Theory of Geology

    Feb 11, 2020 · Plate tectonics thus provides “the big picture” of geology; it explains how mountain ranges, earthquakes, volcanoes, shorelines, and other features tend to form where the moving plates …

  8. What Is Plate Tectonics? - Live Science

    Nov 8, 2024 · Plate tectonics is the theory that Earth’s outer shell is divided into several plates that glide over Earth's mantle.

  9. How Plate Tectonics Trigger Earth's Most Dangerous Disasters …

    1 day ago · Plate tectonics drive global seismic hazards through constant geologic movement, shaping earthquakes, volcanoes, and landslides while influencing major disaster risks.

  10. Plate Tectonics - WorldAtlas

    Mar 6, 2025 · Plate Tectonics is a widely accepted theory of global dynamics that considers the lithosphere to be made up of a series of large tectonic plates which move or slide over each other.