The diagram shows how a volcanic island grows over time in 9 different stages. The most notable stages are the beginning stage which is the pillow phase of preshield stage, 3rd stage where the volcano produce hydro-explosions to destroy the shield, and the final stage that shows the complete form of the volcano island.
Exploring the formation of the island process. In order for the island to partially form it goes through what is called the shield stage; when the shield is created the mountain produces an explosion that would destroy it and in turn creating the outline. In addition, the mountain keeps changing shape after every step till the shield disappears completely.
In order to reach the final shape, the diagram shows 2 more procedures that heavily affect the formation. In the 7th step lava starts flowing from point of eruption which reforms the reef to sea level; additionally, with time the volcano transforms fully and is under the sea level.
