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प्रश्न
Distinguish between the following:
Sills and Dykes.
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उत्तर
| Sills | Dykes |
| The collection of magma between layers of rocks is called a sill. | The fillings of magma in the cracks or fissures of rocks are called dykes. |
| Horizontal intrusions of magma. | Vertical or steeply inclined intrusions of magma. |
| Form between existing layers of rock. | Cut across existing rock layers. |
| Magma spreads sideways and solidifies in sheets. | Magma moves upward through cracks and hardens. |
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संबंधित प्रश्न
Fill in the blank
Granite is an example of intrusive ________ rocks.
Classify the following rocks by selecting the correct option given below:
basalt
How are rocks different from minerals?
State two points of distinction between rocks and minerals.
Name any two characteristics of Igneous Rocks.
Explain this term associated with rocks: Fossil fuels
Explain this term associated with rocks: Metamorphism
Classify the following rock: Clay
Classify the following rock: Slate
How are sedimentary rocks classified?
Give one term for the following statement:
Type of metamorphism in which changes are caused due to high pressure.
Give reasons for the following
Rocks are of great economic significance.
Which of the following monuments are built-in igneous rock?
- The Taj Mahal
- Fort Raigad
- The Red Fort
- Ellora Sculpture
Mention the types of rocks based on formation?
The types of rocks based on formation are
______ are chemical substances which exist in nature.
Minerals exist in nature ¡n the form of ______ or ______.
The world Igneous is derived from the Latin word ______ meaning ______.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following.
| Group A | Group B | ||
| 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.
