You searched for: “argillations”
argillation (s) (noun), argillations (pl)
In geology, a process by which the weathering of aluminum silicates forms clay minerals: Ted learned about argillation as the development of clay minerals resulting from rocks coming in contact with water, air, or even steam.
This entry is located in the following units: argill-, argillo- + (page 1) -ation, -ization (-iz[e] + -ation); -isation (British spelling variation) (page 9)