Question

What kind of mountains are one line of evidence for horizontal crustal movement? fault block folded volcanic dome A) Fault block

B) Folded
C) Volcanic dome
D) All of the above

Answer 1

The mountains that provide evidence for horizontal crustal movement are folded mountains, formed when tectonic plates collide and cause the Earth's crust to fold.

Step-by-step explanation:

The kinds of mountains that serve as one line of evidence for horizontal crustal movement are folded mountains. These formations occur due to the intense pressure from horizontal compression when tectonic plates collide, pushing layers of the Earth's crust into folds. This process creates mountains with characteristic wave-like patterns in rock strata, known as anticlines and synclines. We can observe this in features where layers like those labeled as "G" in the 3-D cross section have undergone folding.

Additionally, active mountain building occurs in fault zones where the crust is deformed due to plate movements. Fault block mountains, which can arise from normal faults during extensional forces, also indicate crustal movement; however, these mountains form due to the blocks of crust being pulled apart and sliding vertically rather than through horizontal compression.