Plate Tectonics

Plate tectonics

Intro:

The word tectonic represents the meaning of plates and boundaries. As an example of activity is an earthquake, which is caused by two plates like the Eurasian and pacific plate pushing towards each other, pushing the land upwards causing a mountain as well as an earthquake. The plates are pieces of land that make up the outer crust, these could move together, move apart or move alongside each other resulting in mountains, volcanoes and earthquakes, this happens deep below the surface and as the earth is spinning and moving, the boundaries move also over millions of years.

Tectonics:

There are four different types of plate boundaries; constructive, collision, destructive and conservative, earthquakes
A collision margin occurs when two plates from the continental crust cannot sink or be destroyed, as such are pushed upwards causing a mountain but can also cause severe earthquakes during the process. A constructive margin is where two plates move away from each other like the North American plate from the Eurasian plate causing the molten lava to erupt from the ground called a volcanic eruption can be extremely dangerous. A conservative margin is when two plates try to slide pat each other slowly in the case of the north American and pacific plates, when the two plates, as often as they do on the notorious san andreas fault in California, pressure builds up when released it creates a severe earthquake. The difference between destructive and constructive margins is that destructive margins moves towards the continental crust causing it to go underneath it forcing the magma out if the volcano, yet the constructive margin tends to move away from a different plate which results in a volcano. Destructive margins also cause volcanoes this is a similarity that the destructive margins also has to the constructive