The Caledonian,Acadian,and Alleghenian orogenic events all led to uplift in the region of the modern ____________.

Question

Quizplus · Accepted Answer

The Caledonian orogeny occurred about 435 million years ago, the Acadian orogeny occurred about 375 to 325 million years ago, and the Alleghenian orogeny occurred about 325 to 260 million years ago. All of these mountain building events occurred in what is now the Appalachian Mountains, making B the correct choice. The Rockies, Alps, and Himalayas were not directly affected by these orogenic events.

The Caledonian,Acadian,and Alleghenian Orogenic Events All Led to Uplift in the Region