What kind of subduction occurs when old, dense lithosphere sinks into the mantle by its own weight rather than by compressional force?
A)Forced subduction
B)Mantle plume subduction
C)Spontaneous subduction
D)Overriding subduction

Question

Quizplus · Accepted Answer

This type of subduction is known as spontaneous subduction. It occurs when the old, dense lithosphere sinks into the mantle due to its own weight and density, without the need for compressional forces or mantle plumes.

What Kind of Subduction Occurs When Old, Dense Lithosphere Sinks