(a) Siliceous rocks
(b) Argillaceous rocks
(c) Sedimentary rocks
(d) None of the above
Ans :- (b) Argillaceous rocks
Explanation :-
Argillaceous rocks : In the argillaceous rock alumina or clay have major constituent. The argillaceous rocks include shales, silt stones and mud stones.
Calcareous rock : The chief constituent is Lime (CaO).
• In chemical classification of rock, marble is known as calcareous rock. Ex. Lime stone, gypsum, marble, dolomite
Siliceous rock : The chief constituent is siliceous rock’s sand silica (SiO2), graphite
Exp. Quartzite, granite.
