Short note of sedimentary rocks

The sedimentary rocks are formed by the deposition and subsequent cementation of that material within bodies of water and at the surface of the earth. The process that causes various organic materials and minerals to settle in a place is termed as sedimentation. Sedimentation may also occur as minerals precipitate from water solution or shells of aquatic creatures settle out of suspension.

Sedimentary rocks are types of rock that are formed by the deposition and subsequent cementation of that material at the Earth's surface and within bodies of water.

Sedimentary rocks are formed from those materials which are deposited at favourable sites by agents of denudation such as river, wind, glacier and sea waves. The process is called the lithification.

The sedimentary rocks are formed in different ways.

(i)The layers of deposits : Loose materials or sediments are deposited in the layers.

(ii)Stratification : The sediments are deposited in the layers. Materials such as clay, silt, sand, etc. settle down in due course.

(iii)Solidification: The loose material gets converted into hard and compact rocks.