Asked by Jasleen Sekhon on Apr 27, 2024
Verified
What events occurred in the western U.S. during middle and late Paleozoic time?
A) collisions with island arcs
B) thrust faults
C) formation of mountains called the Ancestral Rockies
D) all of these
Ancestral Rockies
Refers to a mountain range that existed in the western United States during the late Paleozoic era, before the formation of the modern Rocky Mountains.
Island Arcs
A curved chain of volcanic islands located at a tectonic plate boundary, typically with a deep ocean trench on the convex side.
- Understand the processes and consequences of the colliding continental masses, including orogenesis and its effects.
Verified Answer
SA
Srinivas AllankiApr 30, 2024
Final Answer :
D
Explanation :
During the middle and late Paleozoic era, the western U.S. experienced all of these geological events: collisions with island arcs, the formation of thrust faults, and the creation of mountains known as the Ancestral Rockies.
Learning Objectives
- Understand the processes and consequences of the colliding continental masses, including orogenesis and its effects.