Advertisements
Advertisements
प्रश्न
Give a detailed account of lithiflcation of sedimentary rocks.
Advertisements
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
Discuss the importance of rocks for the construction business.
Rocks and minerals play a very important role in our lives.
Can you imagine modern life without minerals?
Rocks and minerals play a very important role in our lives.
What problems would you face in their absence?
Classify the following rocks by selecting the correct option given below:
coal
Classify the following rocks by selecting the correct option given below:
shale
Classify the following rocks by selecting the correct option given below:
schist
Name three types of rocks.
Give two examples of sedimentary rocks.
Briefly define Mechanical Metamorphism.
Differentiate between Rock and Mineral
Classify the following rock: Dolomite
Classify the following rock: Loess
Classify the following rock: Granite
Give one term for the following statement:
Sheet like body of igneous rock.
Why fossils are preserved in Sedimentary and not in Igneous rocks?
How is sand that flows in a river formed? Collect some information about where the sand comes from.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
