What geologic events are expressed in this cross section of the western U.S.in late Paleozoic - early Mesozoic time?
A)an old episode of continental rifting that lead to a passive margin
B)collision of an island arc with western North America
C)oceanic crust and sediment that was thrust onto North America
D)a basin formed by the weight of thrust sheets
E)all of these

Question

What geologic events are expressed in this cross section of the western U.S.in late Paleozoic - early Mesozoic time? 
A)an old episode of continental rifting that lead to a passive margin 
B)collision of an island arc with western North America 
C)oceanic crust and sediment that was thrust onto North America 
D)a basin formed by the weight of thrust sheets 
E)all of these

Quizplus · Accepted Answer

The cross section shows multiple geologic events occurring in late Paleozoic to early Mesozoic time in the western U.S. These events include an old episode of continental rifting that led to a passive margin, the collision of an island arc with western North America, oceanic crust and sediment that was thrust onto North America, and the formation of a basin due to the weight of thrust sheets. Therefore, the correct answer is E, all of these.

What Geologic Events Are Expressed in This Cross Section of the Western