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प्रश्न
Distinguish between the following pair of terms associated with vulcanicity:
Crater and Caldera
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उत्तर १
| Crater | Caldera |
| The crater is the mouth of a volcano at the top of the vent with a normal outlet. | Caldera is a very large mouth of a volcano which is quite spacious due to the big amount and thrust of the eruption. |
उत्तर २
Crater and Caldera: Crater forms the summit and Caldera the enlarged mouth or the sunken crater at the center of a volcano. When water accumulates in a crater it forms a crater lake and in a caldera a lake like Taba lake of Sumatra. A crater is formed as a result of the overflow of lava and calera as a result of subsidence.
संबंधित प्रश्न
What do you understand by ‘Crater of the Volcano’?
What is the following:
Mud volcanoes
Distinguish between the following pair of terms associated with vulcanicity:
Lava and Magma
Distinguish between the following pair of terms associated with vulcanicity:
Fissure-type Volcanoes and Central-types Volcanoes
Distinguish between the following pairs of terms associated with the crustal movement of the earth:
Graben and Horst
Match the items given in Column A with the correct ones in Column B.
| Column A | Column B |
| 1. A Rift valley lake | (a) Deccan Trap region of India |
| 2. A horst | (b) Fujiyama |
| 3. A basic lava sheet | (c) Tanganyika |
| 4. Composite cones | (d) Black forest plateau |
| 5. An active volcano | (e) Corndon Hill |
| 6. A Batholith | (f) The Alps |
| 7. A Phaccolith | (g) Upland of Britain is France |
| 8. A young Fold mountain | (h) Stromboli |
Give reasons for the following:
Earth as a whole does not expand.
Out of the following words write down the four that are connected with volcanic activity.
Karst, crater, drumlin, stalactites, gully, pot holes, ash, basalt, swallow holes, dyke, domes, bluffs.
What are tectonic movements? How are these classified?
How many major zones of volcanic activities in the world?
