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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Geology (GG)
Which one of the following criterion is most suitable for determining the internal constitution of the earth?
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Rahul kumar
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Reflected seismic waves are used to determine the internal constituents of the Earth. Variation in speed and direction of seismic waves can be related to physical and chemical properties of Earth's internal constituents. Seismic waves reflected from different horizons documents the physical and chemical properties and give idea about internal constituents of the Earth.
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Sajan sarthak Best Answer
Volcanic emanations are directly the melt coming out from deep Earth so it's composition gives the direct evidence of , layers. if felsic then from crystal depth, If mafic from mantle partial melt. Meteorite as it's believed meteorites are also formed exactly at the same time of Earth form,(like solar system part) due to small size and continuous bombard ment of other Stony material erodes away the crust and chips up the core or mantle, thus if meteorite we find we think of analogous to Earth interior. ,and seismic survey are all indirect methods. Most suitable can also be seismic due to less expensive and no risk.