A boundary is where two plates meet together

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Presentation transcript:

A boundary is where two plates meet together A boundary is where two plates meet together. There are three main types:

A boundary is where two plates meet together A boundary is where two plates meet together. There are three main types: convergent

convergent divergent transform A boundary is where two plates meet together. There are three main types: convergent divergent transform

convergent divergent transform A boundary is where two plates meet together. There are three main types: convergent divergent transform

away continental oceanic A diverging boundary occurs where two tectonic plates move ________ from each other or are spreading apart. What happens depends on whether the plates involved are _____________ or _____________. continental oceanic

Two Oceanic Plates (under water)

Two Oceanic Plates (under water)

Two Oceanic Plates (under water)

Two Oceanic Plates (under water) The magma shoots to the surface The magma __________ down and _____________ _________________: the magma is pushed aside by new magma coming from below The entire process is called seafloor spreading cools solidifies ridge push

Two Oceanic Plates (under water)

Two Continental Plates (on land)

rift valley Two Continental Plates (on land) There is a weakened spot on the plate Land sinks down and creates a _________ rift valley

For both cases, large amounts of magma can be released (called a ___________________) through the crack. This may result in the creation of a _____________. rift eruption volcano

continental drift

Unifying Theory of Geology