3.3 Sedimentary Rock - Coggle Diagram
3.3 Sedimentary Rock
Formation of sedimentary rock
Weathering, Erosion, and Depostion.
Weathering is the first step during the formation of sedimentary rock.
Weathered sediment do not remain in the same place.
Erosion is the removal of rock and involved weathering.
Deposition is when sediment is carried naturally and loses it’s energy.
Compaction and Cementation
Compaction is the process they squeezes or compacts sediments.
Cementation takes placemehen dissolved minerals are deposited into small spaces.
The cement hold grains of sand and other minerals together to create a solid.
Classification of sedimentary rock
Clastic Sedimentary Rocks
Many minerals are found in clastic rocks.
Clastic rocks are group through the size of the sediments.
The most common sedimentary rock would be called shale.
Chemical and biochemical sedimentary rocks
Chemical sedimentary rock forms when dissolved substance from precipitation from water solution.
Example of chemical rock would be limestone, rock salt, and more
90 percent of limestones are formed under biochemical sediments.
Features of some sedimentary rock
Textures and kinds of sedimentary rock
The features of the sedimentary rocks are clues to how and when the rocks were made
Fossils are traces of ancient life and are unique to sedimentary rock.
Fossils were created millions of years ago.