Rock Cycle

Rock Cycle

Storyboard Text

  • The first step of the rocks life cycle takes place when a volcano erupts. Eruptions happen when one tectonic plate slides beneath another. A thin, heavy oceanic plate usually subducts beneath a larger continental plate. When enough magma builds up in the magma chamber, it pushes its way to the surface and explodes
  • After the volcanic eruption is finished and the magma is cooled the next step of the rocks cycle takes place. This cooled magma is now an igneous rock. Rocks like this can be formed either under or above ground although the temperature of the rock must be cool.
  • This igneous rock then experiences the next step of the rock cycle. On the surface, weathering and erosion break down the igneous rock into Sedimentary. Sedimentary includes pebbles, sand, and mud, creating sediment, which accumulates in basins on the Earth's surface.
  • Many years later the sediment can find its self near bodies of water. Sediment can also bond with shells, water, pebbles and can form sand. These are now sediment rocks. This process can be so lengthy that it takes so many years where sediment rocks to be found inside the earth
  • Techtonic plates collied and rub together it results in high temperatures. This process is named metamorphosis and this results in metamorphic rock. Volcanos and mountains are then formed out of metamorphic rock.
  • Metamorphic rocks create mountains, when these mountains encounter erosion the rock is now sedimentary.  This then allows the cycle to repeat again. Although if the metamorphic rock creates a volcano the rock then melts and transforms into magma, this also allows the rock cycle to repeat.
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