How the Earth was Made: Iceland

Front

What is sea floor spreading?

Back

Sea floor spreading is the process by which molten material from the mantle rises to the surface at mid-ocean ridges, creating new oceanic crust as tectonic plates move apart.

Front

Where does sea floor spreading occur?

Back

Sea floor spreading occurs at mid-ocean ridges.

Front

What is a subduction zone?

Back

A subduction zone is a region where one tectonic plate sinks below another, often leading to volcanic activity and the formation of mountain ranges.

Front

What type of plate boundary is found at a subduction zone?

Back

A subduction zone is found at convergent plate boundaries.

Front

What type of plate boundary runs through Iceland?

Back

Iceland is located on a divergent plate boundary.

Front

What is a convergent boundary?

Back

A convergent boundary is a tectonic plate boundary where two plates move towards each other, often resulting in one plate being forced below the other.

Front

What geological features are commonly formed at convergent boundaries?

Back

Common geological features at convergent boundaries include mountains, deep ocean trenches, and volcanic arcs.

Front

What is a divergent boundary?

Back

A divergent boundary is a tectonic plate boundary where two plates move away from each other, leading to the formation of new crust.

Front

What is a transform boundary?

Back

A transform boundary is a tectonic plate boundary where two plates slide past each other horizontally.

Front

What geological feature is typically found at divergent boundaries?

Back

Mid-ocean ridges are typically found at divergent boundaries.