You know how there is 7 continents on earth today. But did you know that long ago they were one big continent. How did the continents form? The answer is isotonic plates. During the protezoic eon there where hundreds of small pieces of small crust floating on the mantle.These first land massers were small continents and island arcs. They coiled with each with other because of plates tectonics.
the picecs of crust hit so hard, they jammed together. At the boundairys, much energy was releashed. The land fused together.
by 2.5 billion years ago, about one forth of the earths crust was formed. These ancient land massers were known as
shields. They moved all the time. Larger bodies collided with smaller ones.
Mountians were formed at the edges. Lava flowed and weled pieces
together.
That was how did the continents from?
the picecs of crust hit so hard, they jammed together. At the boundairys, much energy was releashed. The land fused together.
by 2.5 billion years ago, about one forth of the earths crust was formed. These ancient land massers were known as
shields. They moved all the time. Larger bodies collided with smaller ones.
Mountians were formed at the edges. Lava flowed and weled pieces
together.
That was how did the continents from?