Stratification is the building up of layers, and can have several meanings Social stratification, is the dividing of a society into levels based on wealth or power. Stratification in archaeology is the formation of layers (strata) in which objects are found. Stratification of rock layers (strata) is part of the geologic field of Stratigraphy. Stratification (botany), where seeds are pretreated to simulate winter conditions so that germination may occur. See stratified sampling for the use of… (More on Stratified)