The hypothesis that the sialic rocks are floating over the sima was put forth by...
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Alferd Wegener...
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The hypothesis that the sialic rocks are floating over the sima was put forth by Edward Suess.
Explanation:
- One of the earliest structurings of the interior of the Earth was suggested by Edward Suess.
- His hypothesis deals with the chemical properties of the earth's interior which are differentiated into SIAL, SIMA and NIFE.
- The sialic rocks represent the outermost layer and are composed mainly of granite and are dominated by silica and aluminium (Si+Al).
- The layer floats over SIMA (Si+Ma) which is the middle denser layer and has Silica and magnesium as the main constituents.
- And NIFE represents the innermost layer of the earth's crust which is composed of Nickel (Ni) and Ferrum (Fe) as the dominant minerals.
- SIAL floats over SIMA. It is because SIAL is lighter than SIMA.
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