Equitemperature (ET) Metamorphism 2
Equitemperature (ET) Metamorphism 2 : The process of changes in snow texture from complex crystal shapes toward rounded snow (ice) grains in the absence of large temperature gradients. Technically this is known as destructive metamorphism (it destroys crystal shapes), and it results in a strengthening of the ice skeleton and a general rounding of snow grains largely through a preferential transfer of water vapor within the snowpack