7.10B Plate Boundaries

Front

What boundary do plates move apart?

Back

Divergent boundary: A tectonic plate boundary where two plates move away from each other, often resulting in the formation of new crust.

Front

What is formed when two continental plates collide?

Back

Mountain: When two continental plates collide, they push against each other, leading to the formation of mountain ranges.

Front

What are the deepest places on Earth formed by pushing oceanic crust under continental crust?

Back

Trenches: These are deep underwater valleys formed at convergent boundaries where an oceanic plate is subducted beneath a continental plate.

Front

What boundary do plates slide past each other?

Back

Transform boundary: A tectonic plate boundary where two plates slide past one another, often causing earthquakes.

Front

What is the boundary where two plates are moving together?

Back

Convergent boundary: A tectonic plate boundary where two plates move towards each other, often resulting in subduction or mountain formation.

Front

What geological feature is commonly associated with divergent boundaries?

Back

Mid-ocean ridges: Underwater mountain ranges formed by the upwelling of magma at divergent boundaries.

Front

What is a rift valley?

Back

A rift valley is a lowland region formed by the divergence of tectonic plates, characterized by steep walls and a central block.

Front

What happens at a convergent boundary involving oceanic and continental plates?

Back

Subduction: The oceanic plate is forced under the continental plate, leading to volcanic activity and the formation of trenches.

Front

What is the primary cause of earthquakes at transform boundaries?

Back

Stress accumulation: As plates slide past each other, stress builds up until it is released as an earthquake.

Front

What type of boundary is associated with the formation of volcanoes?

Back

Convergent and divergent boundaries: Volcanoes can form at convergent boundaries (subduction zones) and divergent boundaries (mid-ocean ridges).