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Question
Distinguish between the following pair of terms associated with vulcanicity:
Geysers and Hot Springs
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Solution 1
| Geysers | Hot Springs |
| In a geyser, hot water and steam are thrown out at intervals in the form of a fountain. There is an old faithful geyser which erupts out exactly in a one-hour interval, these are about 100 geysers. | In a hot spring, the heated water flows out continuously without any eruptive activity such hot springs are common in Yellow stone park U.S.A. Badrinath and Mani Karan in India. These hot springs are very healthy for a bath. |
Solution 2
Hot Springs :
- It is a stream of hot water issuing from the ground. The hot water flows unobstructed quietly and continuously.
- Hot springs are common where joints fissures and porous beds allow the free exit of water to the surface. The water becomes hot when it comes into contact with the heated rocks or upper heated steam lying deep into the earth’s crust.
Geysers :
- It is a hot spring which at regular or irregular intervals throws a jet of hot water and steam into the air.
- In the case of geyser, the fissure or vent connecting the source of hot water to the surface is very narrow which greatly increases the pressure and temperature of the hot water and so when water comes out it rises high into the air.
RELATED QUESTIONS
What do you understand by ‘Vulcanism’?
Distinguish between the following pair of terms associated with vulcanicity:
Acidic Lava and Basic Lava
Distinguish between the following pair of terms associated with vulcanicity:
Fissure-type Volcanoes and Central-types Volcanoes
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 |
Answer the following:
Some volcanoes develop parasitic cones.
Give reasons for the following:
Earth as a whole does not expand.
Name one useful feature of vulcanicity other than soil fertility.
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.
How the theory of plate tectonics has explained the formation of mountains like Himalaya or Alps and of the volcanic islands.
Explain three major zones of volcanic activities in the world.
