The Rock Cycle
Site for Image : http://img.docstoccdn.com/thumb/orig/98698123.png
The Rock Cycle is the continual process by which rock is new rock is formed from old rock material. (pg. 90) The rock cycle starts with weathering. weathering is when fragments of earths surface are broken and form sediment which much sedimentary rock is made of. After Weathering is Erosion. Erosion is the process of taking away from mountains and hills into rivers to flow and deposit to form a riverbed. After Deposition the sediment is compacted and cemented into Sedimentary Rock layers. As pressure and Heat are added it goes through the process called Metamorphism. Metamorphism is when two parts of Earths crust collide and great pressure and heat are applied to begin to form metamorphic rock. As the Rock nears magma it begins to melt this melting is caused by hot molten rock also known as magma. After the rock has melted it is forced up towards the surface where it begins to cool. When the rock is cool it forms Igneous Rock. The process of the rock cooling and hardening is called solidification. After it is Solid it is forced up and forms mountains and starts the process all over again. (Holt Science and Technology Earth Science Pg. 92-93)
NOTE: The Rock Cycle happens over thousands of years and is not always perfect.
Pictures:
The Rock Cycle is the continual process by which rock is new rock is formed from old rock material. (pg. 90) The rock cycle starts with weathering. weathering is when fragments of earths surface are broken and form sediment which much sedimentary rock is made of. After Weathering is Erosion. Erosion is the process of taking away from mountains and hills into rivers to flow and deposit to form a riverbed. After Deposition the sediment is compacted and cemented into Sedimentary Rock layers. As pressure and Heat are added it goes through the process called Metamorphism. Metamorphism is when two parts of Earths crust collide and great pressure and heat are applied to begin to form metamorphic rock. As the Rock nears magma it begins to melt this melting is caused by hot molten rock also known as magma. After the rock has melted it is forced up towards the surface where it begins to cool. When the rock is cool it forms Igneous Rock. The process of the rock cooling and hardening is called solidification. After it is Solid it is forced up and forms mountains and starts the process all over again. (Holt Science and Technology Earth Science Pg. 92-93)
NOTE: The Rock Cycle happens over thousands of years and is not always perfect.
Pictures:
Metamorphic Rock
Igneous Rock
Sedimentary Rock
Sources:
Picture Sources:1. Metamorphic Rock picture: http://0.tqn.com/d/create/1/0/-/b/2/-/DSC01241.JPG
2. Igneous Rock Picture: http://www.dinojim.com/Geology/GeoBasics/Images/Igneous/Felsic.JPG
3. Sedimentary Rock Picture: http://img.docstoccdn.com/thumb/orig/109106325.png
2. Igneous Rock Picture: http://www.dinojim.com/Geology/GeoBasics/Images/Igneous/Felsic.JPG
3. Sedimentary Rock Picture: http://img.docstoccdn.com/thumb/orig/109106325.png