clay

gravel

cobble

sand

fining of sediment (clast size decrease)

coarsening of sediment (clast size increase)

no change in clast size

diagenesis

transport

weathering

lithification

erosion

Includes only three types of sedimentary rocks: clastic, organic chemical, and biochemical. 

Chemical sedimentary rocks are classified primarily on the basis of mineral composition.

Clastic sedimentary rocks are classified primarily on the basis of grain size.

Are most likely to preserve conditions of ancient environments.

Are most likely to form at or near Earth's surface.

was formed in a deep ocean

was a result of a change in water flow speed

was once covered by glaciers

was once covered in wet mud