Large streams from little fountains grow
- David Everett
The thirsty earth soaks up the rain,
And drinks, and gapes to drink again;
- Abraham Cowley
I was sitting on a river bed
and the story it told about the river that flowed
made me sad to think it was dead.
- America (Horse with no name)
Igneous Rocks
EnvironmentsSedimentary Rocks
Volcanic (extrusive)type of crust
fine-grained texturePlutonic (intrusive)
coarse-grained texture
continental
oceanic
rhyolite basalt basalt granite
WeatheringTransportation
Mechanical (physical)Chemical
Expansion and contraction
vegetation
frost
Oxidation - rust
Dissolution
GravityDecomposition
Streams
Wind
Ice
Deposition
Frequently the grains are sorts by sizeLithification
ConglomerateChemical deposition
Sandstone
Siltstone
Shale
LimestoneOrganic formation
Rock Salt
Coal
Chalk