Advertisements
Advertisements
प्रश्न
Distinguish between Regional and Contact metamorphism.
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.
APPEARS IN
संबंधित प्रश्न
Why is diamond clear and hard while graphite is soft?
Fill in the blank
A category of rock which is formed by the alteration of the parent rock due to heat and pressure is called: ______________.
Fill in the blank
Conglomerate is an example of _____________ rocks.
Classify the following rocks by selecting the correct option given below:
schist
How are rocks different from minerals?
Why are the igneous rocks also called the primary rocks?
Give two examples of Sedimentary Rocks.
Name the types Sedimentary rocks based on agents of formation.
What are metamorphic rocks?
Classify the following rock: Limestone
Give one word for the following.
The best example of chemically-formed sedimentary rock, which has been formed by the evaporation of water from solution containing minerals.
Fill in the blanks
______ is the best example of the wind deposited stratified rock.
State the properties of metamorphic rocks.
Give one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
How are igneous rocks formed?
Minerals exist in nature ¡n the form of ______ or ______.
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.
