What is sediment?
Small, solid pieces of material that comes from rocks or living things
When does sedimentary rock form?
When sediments are deposited by wind and water
What are the 4 processes that result in the formation of sedimentary rock?
Erosion, deposition, compaction, and cementation
What is erosion?
Running water, wind, ice, loosen and carry away fragments of rock
What are some destructive forces of erosion that are constantly breaking up and wearing away all the rocks on earth's surface?
Heat & cold, rain, waves, and grinding icd
What is deposition?
The process by which sediment settles out of the water or wind carrying it
What is compaction?
Process that presses sediment together under their own weight
What is cementation?
The process in which minerals gluesediments together
How do geologists classify sedimentary rocks?
Type of sediments that makeup the rock
What are the 3 major groups of sedimentary rock?
Clastic, organic, and chemical
What is a clastic rock
Sedimentary rock formed when fragments squeeze together
How are clastic rocks grouped?
Size of rock particles of which they are made
What is organic rock?
Forms where remains of plants and animals are deposited in thick layers
What does "organic" mean?
Once part of living things or made by living things
What are 2 important sedimentary organic rocks?
What are chemical?
Minerals disolve and crystallize