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प्रश्न
Name the three stages of lithification of Sedimentary rocks.
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उत्तर
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Compaction: The weight of overlying layers compresses the sediments, reducing pore spaces.
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Evaporation: Water is removed, leaving behind dissolved minerals.
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Cementation: Minerals like silica, calcium compounds, or iron bind the compacted sediments together, turning them into solid rock.
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संबंधित प्रश्न
Explain the structure of the earth’s interior?
How are rocks different from minerals?
State two points of distinction between rocks and minerals.
Name the types Sedimentary rocks based on agents of formation.
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Classify the following rock: Rock salt
Give one word for the following.
The lower part of ocean floor, comprising mainly of silica.
Give one word for the following.
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______ rock contain a low percentage of silica and a high percentage of basic oxides.
Why are the Igneous Rocks called Primary Rocks?
How is sand that flows in a river formed? Collect some information about where the sand comes from.
Which types of rocks are predominantly found at the following locations?
- Central Maharashtra
- South Konkan
- Vidarbha
Igneous rocks are found in the regions of volcanoes.
Mention the types of rocks based on formation?
The types of rocks based on formation are
The two types of Intrusive Igneous rocks are ______.
______ into slate caused by thermal metamorphism.
What is thermal metamorphism?
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
