Which of the following are true for horsts and grabens?
A) A horst is a block that is uplifted relative to blocks on either side.
B) A graben is a block that is dropped down relative to blocks on either side.
C) May form associated with multiple normal faults.
D) These are all true of horsts and grabens.

Question

Quizplus · Accepted Answer

Horsts and grabens are geological structures that result from extensional forces in the Earth's crust, causing it to stretch and break. A horst is an uplifted block bounded by faults, while a graben is a lowered block also bounded by faults. They often occur together in regions experiencing extensional tectonics and are indeed associated with multiple normal faults.

Which of the Following Are True for Horsts and Grabens