The presence of even 0.8% water may reduce the temperature of melting by as much as 100 °C. Conversely, the loss of water and volatiles from a magma may cause it to essentially freeze or solidify.
Prisutnost od samo 0.8% vode može smanjiti temperaturu tališta čak i za 100°C. Obratno, gubitak vode i volatila iz magme može uzrokovati smrzavanje ili očvršćavanje.