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प्रश्न
What is thermal metamorphism?
What do you mean by thermal metamorphism?
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उत्तर
Thermal metamorphism is the process where rocks undergo chemical changes due to exposure to high temperature. This causes the minerals in the rocks to melt, recrystallise, and reorganise into new minerals, resulting in a different structure and properties. It includes contact metamorphism (from direct contact with hot magma or lava) and regional metamorphism (due to high temperature and pressure inside the earth).
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संबंधित प्रश्न
Rocks and minerals play a very important role in our lives.
What problems would you face in their absence?
State two characteristics of the mantle.
Give an example of intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
granite
How are sedimentary rocks formed?
Name three types of rocks.
Explain this term associated with rocks: Laccoliths and Batholiths
How are sedimentary and igneous rocks formed?
Classify the following rock: Basalt
Classify the following rock: Slate
Classify the following rock: Marble
Give one example of an area of: Metamorphic rocks,
Give one term for the following statement:
Igneous rocks of deep seated origin.
Diamond is an example of _______ rock.
The word ‘Igneous’ is derived from the ______ word.
Oldest Sedimentary rocks of the world has been identified in Green land.
______ rocks are also known as stratified rocks.
Sedimentary rocks are called stratified rocks.
Why are crystalline rocks called so?
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
