Sedimentary RocksSedimentary Rocks

Sedimentary RockSedimentary Rock

Rock that is formed from parts of Rock that is formed from parts of other rocks that are compressed and other rocks that are compressed and cemented together or as dissolved cemented together or as dissolved minerals reform and build up in minerals reform and build up in layers.layers.

ClassificationClassification

Clastic Rocks: Rocks that are formed Clastic Rocks: Rocks that are formed from parts of other rocks. from parts of other rocks.

Types of Clastic RocksTypes of Clastic Rocks

Conglomerate: Made from cemented Conglomerate: Made from cemented rounded rocks 2 mm or largerrounded rocks 2 mm or larger

Breccia: Made of angular cemented Breccia: Made of angular cemented rocks 2 mm or largerrocks 2 mm or larger

Conglomerate Breccia

Clastics ContinuedClastics Continued

Sandstone: Made from cemented Sandstone: Made from cemented and compressed sand (less than and compressed sand (less than 2mm to 1/162mm to 1/16thth of a mm) of a mm)

Siltstone: compressed silt Siltstone: compressed silt (0.0039 to 0.0625 mm)(0.0039 to 0.0625 mm)

Shale: Made from compressed mud Shale: Made from compressed mud and clayand clay

Sandstone Shale Q.H. Sandstone Cave

Siltstone

Non-ClasticNon-Clastic

Chemical: Rocks made from Chemical: Rocks made from precipitation of minerals or precipitation of minerals or evaporation of water.evaporation of water.

Organic: Rocks made from Organic: Rocks made from biochemical processesbiochemical processes

Chemical RocksChemical Rocks

Evaporates: Halite, GypsumEvaporates: Halite, Gypsum Limestone: Precipitated Calcite from Limestone: Precipitated Calcite from

seawater (CaCOseawater (CaCO33)) Dolomite (Dolostone): Calcium Dolomite (Dolostone): Calcium

Magnesium Carbonate (CaMgCOMagnesium Carbonate (CaMgCO33))

Limestone

Dolomite

Organic Rocks Organic Rocks

Some Limestone: Coquina, Some Limestone: Coquina, Fossiliferous LimestoneFossiliferous Limestone

Coal: Made from partially decayed Coal: Made from partially decayed plant materialplant material

Coquina Fossiliferous Limestone

Coal