Rock Types

Rock Cycle

Rocks change constantly from one type to another. First the magma uplifts by the force of gases through a mountain, which is mostly referred as Volcano. When these molten rocks travel outside, they are named as lava. Because of the different temperature of inside and outside of earth, the lava solidifies and become solid, known as Igneous Rock. By weathering and erosion, the rocks break down in small sediments. Later, these sediments are pushed together and become a new rock, known as Sedimentary Rock. As the rocks travel downwards by the layers of the earth, they heat up and pressure acts on them, making layers and producing another kind of Metamorphic Rock. The rocks keep travelling downwards, and finally meet up with magma, which is located at the most bottom of the layers. And so on, the rock forming cycle keeps working.

Rocks

Metamorphic Rock: Rocks formed by heat and pressure.

Magma: Molted rocks inside the earth.

Lava: Molted rocks outside the earth.

Solidification: The process by which lava cools down and becomes solid.

Igneous Rock: Rocks formed when lava is cooled down and solidifying.

Weathering: When rocks are broken down by storms etc.

Erosion: When rocks are moved from the surface by winds etc.

Sediment: Small rocks broke down by weathering and erosion.

Compaction: Process by which sediments come together.

Cementation: Process by which sediments are glued together.

Sedimentary Rock: Rocks formed when compaction and cementation takes place with sediments.

Rock Types

Igneous Intrusive Rock: Igneous Rocks that are formed inside of the earth.

Igneous Extrusive Rock: Igneous Rocks that are formed outside of the earth.

Sedimentary Clastic Rock: Sedimentary rocks formed when little fragments are glued together.

Sedimentary Crystalline Rock: Sedimentary Rocks formed when minerals and evaporation.

Sedimentary Bioclastic Rock: Sedimentary Rocks formed when left over of dead organisms are glued together.

Metamorphic Foliated Rock: Metamorphic Rocks formed as layers.

Metamorphic Non-Foliated Rock: Metamorphic Rocks formed without layers.