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Exploring Plate Boundaries: Divergent vs. Convergent

Discover the dynamic world of plate boundaries. Learn about divergent boundaries where lithosphere plates move apart, forming rift valleys and sea floor spreading, and convergent boundaries where plates come together, creating features like deep sea trenches and mountain ranges. Also, delve into collision boundaries and transform boundaries. Get insights into the geological forces shaping our planet!

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Exploring Plate Boundaries: Divergent vs. Convergent

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  1. 8.2 Plate Boundaries

  2. Divergent Boundaries What is a divergent boundary? • A boundary b/t two lithosphere plates that are moving apart. • Most exist on the ocean floor and have rift valleys (deep valleys at the center of mid ocean ridges) • Rifts - Where molten rock forces its way b/t cracks on ocean floors causing spreading (sea floor spreading)

  3. Divergent Boundary

  4. Convergent Boundaries What is a convergent boundary? • It is where two plates come together or “converge”. Types • When a plate dives beneath another plate is called a subduction boundary.

  5. Convergent Boundary Products of Subduction boundaries - Deep Sea Trench – It is a part of a subduction boundary that is the deepest parts of the ocean floor.

  6. ***NOTE*** When two oceanic plates converge, trench formation is accompanied by the formation of a volcanic island arc.

  7. Convergent Boundaries Types Collision Boundaries: • Where two continental plates collide. May cause continents to weld. Mountain formation occurs at point of collision • Ex. Himilayas (China/India), Ural Mtn (Siberia/Europe)

  8. Transform Boundaries Transform Boundaries – is the product of two plates sliding past each other. Earthquakes

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