https://padlet.com/1700386/i271erz7iwyv en-us 2018-05-16 15:46:12 UTC 2025-11-15 00:24:13 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Pictureland.png 1700386 https://padlet.com/1700386/i271erz7iwyv/wish/261339469 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. ]]> 2018-05-16 18:15:35 UTC https://padlet.com/1700386/i271erz7iwyv/wish/261339469 1700386 https://padlet.com/1700386/i271erz7iwyv/wish/261344326 2018-05-16 18:26:36 UTC https://padlet.com/1700386/i271erz7iwyv/wish/261344326 1700386 https://padlet.com/1700386/i271erz7iwyv/wish/261344606 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.]]> 2018-05-16 18:27:22 UTC https://padlet.com/1700386/i271erz7iwyv/wish/261344606 1700386 https://padlet.com/1700386/i271erz7iwyv/wish/261345559 If two continental plates collide, neither can sink and so the land buckles upwards to form fold mountains.]]> 2018-05-16 18:29:56 UTC https://padlet.com/1700386/i271erz7iwyv/wish/261345559 1700386 https://padlet.com/1700386/i271erz7iwyv/wish/261345836 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.]]> 2018-05-16 18:30:38 UTC https://padlet.com/1700386/i271erz7iwyv/wish/261345836