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प्रश्न
Give a detailed account of lithiflcation of sedimentary rocks.
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उत्तर
Lithification means solidification. The loose material carried on by water, wind and ice is deposited slowly in different layers one upon another. Gradually the deposited sediments become solid and hard due to pressure and temperature. Evaporation results in the loss of water within the sediments and these are compacted and cemented. Compaction takes place by increasing weight and pressure of over lying sediments e.g. sand is converted to sandstone. Cementation takes place by bonding of compacted sediments by natural elements like calcium compounds, silica and iron with a property to bind the loose materials to solid state.
संबंधित प्रश्न
Write True or False. Rewrite the false statement correctly :
Rocks are used in construction industries.
Classify the following rocks by selecting the correct option given below:
gypsum
The photograph shows you a type of rock that is widely used in the construction industry.
- Name the type of rock.
- How is it formed?
Why are the igneous rocks also called the primary rocks?
State two characteristics of Basic Igneous Rocks.
Name two important landforms made by Igneous Rocks.
Give two examples of sedimentary rocks.
Which agents are responsible for deposition of sediments?
What processes are involved in the formation of Igneous Rocks?
What physical agents are involved in the sedimentary rocks?
Classify the following rock: Loess
Classify the following rock: Marble
Classify the following rock: Schist
How are sedimentary rocks classified?
Distinguish between Intrusive and Extrusive Rocks
How are igneous rocks formed?
Which Soils are formed by the weathering of metamorphic rocks?
Rocks are classified into ______ types.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
