# data[].attributes.body
As the plates collide, the oceanic plate is forced beneath the continental plate. This is known as subduction and results in the formation of an ocean trench. This happens because the oceanic plate is denser (heavier) than the continental plate. When the plate sinks into the mantle it melts to form magma. The pressure of the magma builds up beneath the Earth's surface. The magma escapes through weaknesses in the rock and rises up through a composite volcano, also known as a stratovolcano. The volcanic eruptions are often violent, with lots of steam, gas and ash.

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If two continental plates collide, neither can sink and so the land buckles upwards to form fold mountains.

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At a destructive plate boundary - also known as a convergent plate boundary - the plates are moving towards one another. It usually involves an oceanic plate and a continental plate. This movement can cause earthquakes and volcanoes. An example of this plate boundary or margin is where the Nazca and South American plates are converging.

# data[].attributes.body
As the oceanic crust subducts under the continental crust, the friction can cause earthquakes. The oceanic crust then melts due to the heat, forming magma.