Question

Large ________ extend for considerable distances and depths through rock. Below the surface, there is minimal separation between the blocks on either side.

A) faults
B) master joints
C) solution cavities
D) glory holes
E) vesicles

Answer 1

Large faults are fractures that cut through rock and extend for considerable distances; there is minimal separation between the blocks on either side of a fault.

Step-by-step explanation:

Large faults extend for considerable distances and depths through rock. Below the surface, there is minimal separation between the blocks on either side. Faults are fractures in rocks where there has been notable movement along the fractures. If we observe a fault from above as a bird's eye view and see movement side by side, we call it a strike-slip fault. When viewed from the side, and one block appears to move over another, it is a dip-slip fault, which can be further categorized into normal and reverse faults depending on their movement. Normal faults happen when the Earth's crust extends, causing the hanging wall to move down, whereas reverse faults occur during crustal compression, causing the hanging wall to move up. A thrust fault is a special kind of reverse fault with a gentle dip, less than 30°.