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  • The arrangement of sediments in layers or strata marked by a change in color, texture, dimension of particies, and composition. Stratification usually means layers of sediments that separate readily along bedding planes because of different sizes and kinds of material or some interruption in deposition that permitted changes to take place before more material was deposited.  
  • (1) the division of a society into groups that have varying degrees of access to resources and power. (2) the laying down or depositing of strata or layers (also called deposits) one above the other. A succession of layers should provide a relative chronological sequence, with the earliest at the bottom and the latest at the top. Source: Anthromorphemics

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