Question

Why are most pacific ocean islands volcanic in nature?

Answer 1

Pacific Ocean islands are volcanic in nature.

Explanation:

• The Pacific Ocean was originated by the Panthalassic Ocean by rifting apart of Rodinia.
• The islands are produced in the Pacific Ocean due to linear chains of volcanic islands.
• These islands rested above the plates .
• The oceanic plate of Pacific Ocean is close to the magmatic chamber of the earth.
• These islands are formed by :-

1. mantle plumes
2. propagating fracture origin
3. uplifted coralline reefs
4. fragments of crust
5. subducted parts of adjoining lithospheric plates
6. subduction along convergent plate margin.