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In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other.
Learn how plates move apart above rising convection currents and create different features depending on the type of lithosphere. See examples of divergent boundaries in the ocean and on land, and explore satellite images of rifts and mid-ocean ridges.
At divergent boundaries, sometimes called constructive boundaries, lithospheric plates move away from each other. There are two types of divergent boundaries, categorized by where they occur: continental rift zones and mid-ocean ridges.
Movement in narrow zones along plate boundaries causes most earthquakes. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. As the plates move past each other, they sometimes get caught and pressure builds up.
Learn about divergent, convergent, and transform plate boundaries, where tectonic plates move apart, collide, or slide past each other. See examples of these boundaries and how they affect the Earth's surface and crust.
Learn how divergent plate boundaries, where Earth's plates move apart, create seafloor spreading, rift valleys, volcanoes, and earthquakes. Watch a video and read a transcript with questions and answers.
Mar 7, 2024 · A divergent plate boundary often forms a mountain chain known as a ridge. This feature forms as magma escapes into the space between the spreading tectonic plates.
