Sandstones meaning

The latest Cretaceous is the Ripley formation, which lies west of the northern part of the last-named, and, about Scooba, in a small strip, the most southerly of the Cretaceous - it is composed of coarse sandstones, hard crystalline white limestones, clays, sands, phosphatic greensands, and darkcoloured, micaceous, glauconitic marls; its greatest thickness is about 280 ft.

The Devonian dolomites, limestones and red sandstones cover immense tracts and appear on the surface over a much wider area.

Cretaceous beds - sands, loose sandstones, marls and white chalk - occupy nearly the whole of the region S.

Architectural variety and solidity are favoured in the buildings of the city by a wealth of beautiful building stones of varied colours (limestones, sandstones, lavas, granites and marbles), in addition to which bricks and Roman tiles are employed.

The Lower Tertiary consists largely of reddish sandstones resting upon the old rocks of the Cordillera and of the Sierras.