Sima comprises of minerals Line
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The main mineral constituents of the continental mass are silica and alumina. ... The oceanic crust mainly consists of silica and magnesium; it is therefore called sima (si-silica and ma-magnesium). Just beneath the crust is the mantle which extends up to a depth of 2900 km.
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The main mineral constituents of the continental mass are silica and alumina. ... The oceanic crust mainly consists of silica and magnesium; it is therefore called sima (si-silica and ma-magnesium) (Fig. 2.2).
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