Advertisements
Advertisements
Question
Why is the upper mantle called the asthenosphere?
Short Answer
Advertisements
Solution
- Mantle lies below the crust.
- The upper portion of the mantle is called as asthenosphere, The word “astheno” is a Greek word meaning 'weak'.
- It is in liquid state and it is from this weaker zone that the molten rock materials i.e., 'magma’ find their way to the surface during volcanic eruptions.
- Epicenters of deep seated earthquakes are also found here. Therefore, the upper mantle is called the 'asthenosphere’.
shaalaa.com
Interior of the Earth
Is there an error in this question or solution?
RELATED QUESTIONS
Give geographical reason:
There are discontinuities in the interior of the earth.
Draw neat diagram, label them and explain.
Magnetic pole and equator.
Magnetosphere of the earth is a result of rotation. Explain.
Name the main mineral constituent of the continental mass.
What are the main constituents of the core?
What is the earth’s crust made of?
Write note on the core of the earth?
The upper part of the crust consists of ______ rocks.
Mantle is separated from the crust by a boundary called ______.
The core is also known as ______.
