Final answer:
Differential erosion explains the formation of Devils Tower. Two theories about its formation are the Intrusion Theory and the Volcanic Neck Theory.
Step-by-step explanation:
The formation of Devils Tower can be explained by the concept of differential erosion. It is a geological process in which the formation of the tower is the result of erosion wearing away the surrounding softer rock layers, leaving the more resistant igneous rock exposed. As for the theories of its formation, there are two main hypotheses:
- Intrusion Theory: This theory suggests that Devils Tower is the remnant of a volcanic intrusion that solidified underground and was later exposed through erosion.
- Volcanic Neck Theory: According to this theory, Devils Tower is a volcanic neck or the core of an ancient volcano, where the surrounding softer rock eroded away, leaving behind the hardened magma.