Question

Florian discovers a rock that is broken into pieces. Each piece has several bands.

Which type of rock does Florian predict these pieces will change into when subjected to heat and pressure?

Answer 1

Igneous rock

Step-by-step explanation:

The rock held by Florian is already a metamorphic rock. On further subjection for heat and pressure, the rock will melt to become igneous rocks.

• A banded rock is termed a gneiss
• In such a rock body, areas concentrating dark minerals and light minerals alternates to form the distinct domains.
• This in turn results from a very high grade metamorphic event.
• In retrospect, if this rock body is further heated, a melt or magma form which is the material by which igneous rocks are derived from.