Building Materials - Engineering

Q1:

The foliated structure is very common in

A sedimentary rocks

B igneous rocks

C metamorphic rocks

D none of these.

ANS:C - metamorphic rocks

Foliation in geology refers to repetitive layering in metamorphic rocks. Each layer can be as thin as a sheet of paper, or over a meter in thickness. The word comes from the Latin folium, meaning "leaf", and refers to the sheet-like planar structure.