rock cycle –sedimentary notes
Post on 23-Feb-2016
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ROCK CYCLE –SEDIMENTARY NOTES
Brought to you by: Mr. Henderson
Formation Process of
changing rocks due to… Weathering
(breakdown of rock)
Erosion (movement of weathered material)
Compaction of these sediments and cementation with CaCO3 or SiO2
Types of Sedimentary Rocks Clastic – based on grain size
Very fine – clay
Fine - silt
Types of Sedimentary Rocks – Cont’d.
Coarse – sand
Moderate – Arkose
Pebble – Conglomerate
Boulder
Types of Sedimentary Rocks – Cont’d.
Chemical – due to a chemical process or organic material being present
Rock Salt
Evaporate – due to the evaporation of water
Biochemical – organic material such as decaying flora present
Types of Sedimentary Rocks – Cont’d.
Coal
Gypsum
Lechuguilla Cave – Gypsum Crystals
Reactive – effervescence in presence of acid
Types of Sedimentary Rocks – Cont’d.
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