How did the Sierra Nevada Range form?

Answer 1

Where tectonic plates collide, the intervening crust can be folded or pushed up to form mountains. In the case of the Sierra Nevada, an ancient collision forced magma from an oceanic plate beneath the western part of North America. After millions of years, erosion and glaciation has exposed these underground rocks, or plutons, which form the bases of the mountains of the range.

Answer 2

In some places the earth's crust has been broken, bent and crumpled into huge blocks. Some blocks move up or down or are tilted. These are fault or block mountains. The Sierra Nevada Mountains are block mountains.

Answer 3

Pacific and Northern plates crashed against each other and cause the sierra Nevada mountains form

Answer 4

convergent subuction