katamorphism

Definitions of katamorphism

1. noun

   metamorphism that occurs at or near the earth's surface; breaks down complex minerals into simpler ones
   antonyms:

   anamorphism

   metamorphism that occurs deep under the earth's surface; changes simple minerals into complex minerals

   type of:

   metamorphism

   change in the structure of rock by natural agencies such as pressure or heat or introduction of new chemical substances