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प्रश्न
Name different types of sedimentary rocks.
Name the three types of sedimentary rocks based on their formation.
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उत्तर
The three types of sedimentary rocks based on their formation are:
- Mechanically formed sedimentary rocks (clastic rocks) - formed by accumulation and compaction of sediments (e.g. sandstone, shale).
- Organically formed sedimentary rocks - formed from organic materials like remains of plants and animals (e.g. coal, limestone).
- Chemically formed sedimentary rocks - formed by precipitation of minerals from water (e.g. limestone, chert).
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संबंधित प्रश्न
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basalt
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Classify the following rock: Gneiss
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The upper part of lithosphere, which is rich in silica and aluminium.
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Igneous rocks, which contain a low percentage of silica.
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Sheet like body of igneous rock.
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Fine grained metamorphic rock, generally produced by the low grade metamorphism of shale.
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Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
