Earth And Life Science Practice Test

The down-dropped block between two faults is called a what?

Graben Horst Fault Normal

Correct Answer:

Graben

Explanation:

When crust is pulled apart, normal faults form and the land between them can sink relative to the sides. That down-dropped block is called a graben. It contrasts with a horst, which is the raised block between two faults. So the graben specifically describes the sunken block, while the term “normal” refers to the type of fault movement (hanging wall moving down). This pattern is common in fault-block mountains and rift valleys, where alternating blocks rise and fall as the crust stretches.

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