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what is sedimentary rock

Sedimentary rocks are those that represent the material record of environments in the form of rock layers or strata that once existed on earth.It is formed from sediments deposited on the sea bed, river bed, floors of lakes, on searches, on land, glacial moraines etc. Sedimentary rocks are also known as stratified rocks because of their layered structure.

Some Common Sedimentary Rocks

Name

Image

Color

Composition

Sandstone
Red or Gray
Sand grains cemented together
Limestone
White to Gray
Calcite and sometimes fossils
Shale
Dark Gray
Compacted mud
Conglomerate
Different Colors
Rounded cobbles and pebbles cemented together


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