Question

name the main mineral constituents of the oceanic crust​

Answer 1

The topmost layer, about 500 metres (1,650 feet) thick, includes lavas made of basalt (that is, rock material consisting largely of plagioclase [feldspar] and pyroxene). Oceanic crust differs from continental crust in several ways: it is thinner, denser, younger, and of different chemical composition

Answer 2

The main mineral constituents of the continental mass are : Silica and Alumina. It is thus called Sial ( Si- Silica ) and ( al-alumina ).

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