Question

Hydrothermal metamorphism _____.

Answer 1

Hydrothermal metamorphism occurs due to interaction of country rocks with a high temperature fluid generating compositional and mineralogical changes.

Answer 2

Hydrothermal metamorphism occurs when hot, mineral loaded and chemically active water interacts with the surrounding rock that already exists there. The hot mineral water can be derived from a variety of sources.

They take place at low temperature and pressure and not easily seen in nature. It is a type of allochemical metamorphism.