Question

Which of the following plate boundaries and hot spots have volcanoes that are capable of VERY LARGE (Plinian size) EXPLOSIVE eruptions? (A) O-O Transform (B) C-C convergent (C) Continent-Continent Divergent (D) Oceanic hot spots(E) Continental Hot spots(F) C-C Transform (G) Ocean-Continent Convergent(H) O-C Transform (I) Ocean-Ocean Convergent

Answer 1

G. Oceanic and continental Convergence.

Explianaton:

• From the point of view plate tectonics, following very large boundaries the volcanic eruptions and hotspots are capable of very large scale or massive eruptions as a ring of fire itself is based on the pacific plate which is being subducted by the North American plate.

• And this pacific plate is shrinking in size, as a result of the convergence volcano are being formed and explosive. The Speed of subduction of this late is 65-102mm i.e 4.0 inch per year.

• Its due to the nature of this plate the splitting of lava around the Hawaiian island is a result of the colliding impact created at this boundary.