[[EPZ Thousand Plateaus - Gilles Deleuze Félix Guattari]] our main strata Gilles Deleuze, Felix Guattari, A Thousand Plateaus, Capitalism and Schizophrenia, 502 > Summarily and traditionally, we distinguish three major strata: physicochemical, organic, and anthropomorphic (or "alloplastic"). Each stratum, or articulation, consists of coded milieus and formed substances. Forms and substances, codes and milieus are not really distinct. They are the abstract components of every articulation.