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प्रश्न
Give geographical reason:
Mantle is the centre of earthquake and volcanic eruptions.
कारण सांगा
उत्तर
- Mantle lies below the crust and it is divided into two layers, viz. upper mantle and lower mantle. The upper layer of the mantle is in a liquid state and is called as 'Asthenosphere'. 'Astheno' means 'weak".
- It is in this layer that magma chambers are found. Through these chambers, magma comes out on the earth's surface during volcanic eruptions.
- Moreover, during endogenetic movements which occur in this layer, internal energy is released. This energy is responsible for; earthquake and volcanic eruptions.
- Epicenters of deep seated earthquakes are found in this layer. Therefore, Mantle is the centre of earthquake and volcanic eruptions.
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Mantle
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