Question

Which of the following are processes that can occur in large magma chambers?

1) Crystallization
2) Magma mixing
3) Assimilation
4) All of the above

Answer 1

In large magma chambers, processes such as crystallization, magma mixing, and assimilation can occur.

Step-by-step explanation:

In large magma chambers, several processes can occur:

1. Crystallization: As the magma cools gradually, individual crystals have time and space to grow large. For example, feldspar crystallizes early in the cooling process and has straight crystal sides, while quartz crystallizes later and fills spaces.
2. Magma mixing: When two or more magmas with different compositions come into contact, they can mix and form a new magma with a different composition.
3. Assimilation: Magma can assimilate, or incorporate, surrounding rocks as it intrudes into them, resulting in the formation of a different magma composition.

Therefore, the correct answer is option 4) All of the above.