Question

How do uplift and erosion help to form a batholith?

Answer 1

Answer:

Uplift and erosion help to form a batholith by exposing a large body of igneous rock to the surface

Explanation:

Here we have to take in account three important concepts:

1. Erosion: It's a process where a rock is damaged by chemical and physical weathering and its parts are removed by water, wind or by gravitational forces. It occurs when the rock is exposed on eart´s surface, because the atmospheric conditions are very different from the forming conditions of the rock (earth's interior).

2. Uplift: Is the result of tectonic stress (pression forces principally), that usually strain earth's crust creating mountains, here is possible to expose rocks that were formed on eart's interior

3. Batholith: This is a very large igneous rock body that is exposed on earth's surface. This rocks were originated from magma and they cooled down on earth's interior.

So, to form a batholith we need to uplift an igneous rock body and then we need the erosion process to expose that rock body to the surface.

Answer 2

Answer:

Option C, by exposing a large body of igneous rock to the surface

Explanation:

Batholiths are composed of magma that later cooled to form intrusive igneous rock. These rocks remain inside the earth as plutons and when erosion exposes this underground rock, they are known as batholiths. Since these rocks cool down below the earth surface, there structure comprises of coarse grained texture or granitic texture. It surrounding rock is known as country rock which makes way for more intrusions.  Thus it becomes clear that batholiths are formed from erosion and uplift

Hence, option C is correct