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Minerals And Rocks

Question
CBSEENGE11011338
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Describe the characteristics of sedimentary rocks.

Solution

1. Most sedimentary rocks are formed by the lithification of weathered rock debris that has been physically transported and deposited.
2. During the transport process, the particles that make up these rocks often become rounded due to abrasion or can become highly sorted. Examples- Conglomerate and Sandstone.
 3. All sedimentary rocks are lithified into some collective mass. 


4. Some types of clastic sedimentary rocks are composed of weathered rock material like gravel, sand, silt, and clay. 
5. Several types of sedimentary rocks are formed from the lithification of once living organisms. Limestone deposits can be formed by the direct lithification of coral reefs, marine organism shells, or marine organism skeletons.

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Some More Questions From Minerals And Rocks Chapter

Write some main sedimentary rocks.

Which important minerals are found in metamorphic rocks?

State one example of hard rock and soft rock.

The process of physical and chemical changes affecting sediments during their conversion into solid rocks.

Structure in metamorphic rocks in which minerals are drawn out into long, thin pencil like objects all in parallel alignment.

The smooth planer surfaces of weakness along which minerals have pronounced tendency of split.

Few large crystals imbedded into material of smaller crystals.

What do you mean by rocks ? Name the three major classes of rocks. 

What is an igneous rock? Describe the method of formation and characteristics of igneous rock.

What relationship is explained by rock cycle between the major types of rock?

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