Title: stratification Long Title: IUPAC Gold Book - stratification DOI: 10.1351/goldbook.15063 Status: current Definition Process by which materials form or are deposited in layers, as in sedimentary rocks and some igneous rocks. The atmosphere and the ocean also exhibit stratification, with the warmer air or water occupying the upper layers. Source - PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 950 (https://doi.org/10.1351/PAC-REC-08-07-09) Other Outputs - html: https://goldbook.iupac.org/terms/view/15063/html - json: https://goldbook.iupac.org/terms/view/15063/json - xml: https://goldbook.iupac.org/terms/view/15063/xml Citation: Citation: 'stratification' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.15063 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-05-28T12:08:12+00:00