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प्रश्न
Distinguish between Regional and Contact metamorphism.
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उत्तर
Regional metamorphism When metamorphism of bed rocks takes place over a very large area, it is called Regional metamorphism. It is usually caused by the movement of the earth’s crust. Contact metamorphism when it takes place over a small area, it is called Local Metamorphism or Contact Metamorphism. It commonly occurs when hot magma comes in contact with other rocks.
संबंधित प्रश्न
Rocks and minerals play a very important role in our lives.
What problems would you face in their absence?
Write True or False. Rewrite the false statement correctly :
Rocks are used in construction industries.
What is the difference between the inner and the outer core?
Classify the following rocks by selecting the correct option given below:
schist
How are rocks different from minerals?
Give one difference between Extrusive igneous and Intrusive igneous rocks.
Classify the igneous rocks on the basis of their place of origin.
What is metamorphism?
Why are Sedimentary rocks called the Secondary rocks?
Give reasons for the following
Extrusive rocks generally have small crystals.
Which of the following monuments are built-in igneous rock?
- The Taj Mahal
- Fort Raigad
- The Red Fort
- Ellora Sculpture
Volcanic mountains are covered with sedimentary rocks.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Which Soils are formed by the weathering of metamorphic rocks?
What are the uses of soil?
Minerals exist in nature ¡n the form of ______ or ______.
What are the characteristics of Sedimentary rocks?
Explain the different types of sedimentary rocks.
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.
