Question

What type of foliation results from the parallel alignment of abundant, coarse-grained, mica flakes in a metamorphic rock?

Answer 1

Answer:

Schistosity

Explanation:

Firstly, foliation is dominantly found in Metamorphic rocks and is said to be the parallel alignment of textural and structural features of rocks.

Differential stress is one major factor that contributes to the texture of metamorphic rocks. Differential stress can flattened the rocks constituents. Generally, planar texture rocks are said to be foliated.

Schistosity is a kind of foliation present in phyllite and Schist rocks that is characterize by coarse grained crystal due to the parallel alignment of platy minerals like mica, biotite and muscovite.

The picture above shows a schist rocks. The most visible way to recognize schistose texture is the visible platy minerals that depicts planar alignment.