Question

An "Orogeny" is a mountain building event that happens when two tectonic plates collide. Which of following is true about the Laramide Orogeny? Select one or more: 0 a. It elevated the Colorado Plateau o b. It greatly jumbled all of the layers of the Grand Canyon o c. It happened in the Precambrian O d. It caused the Great Unconformity

Answer 1

It elevated the Colorado Plateau.

It happened in the Precambrian.

It caused the Great Unconformity.

Step-by-step explanation:

• Laramide Orogeny was a phase in the mountain building in North America starting in late Cretaceous, period 70-80 million years ago. And ended about 55 million years ago.

• Due to the oceanic crust was undergoing slab subduction i.e magnetism occurred at a shallow margin, underlying oceanic lithosphere that caused a drag in the roots of the continental lithosphere.

• Occurring around the volcanic arc of the Andes. The tectonic settings produced a type of deformation in continental plates upliftment and basins.