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PaST Thesaurus Navigator
Use this page to navigate the Paleoenvironmental Standard Terms (PaST) thesaurus and discover information about terms such as definitions, relations, and vocabulary hierarchies.
delta 2H
the ratio of two isotopes of hydrogen, 2H/1H, in a sample compared to that of a standard, typically standard mean ocean water, as in: ((2H/1H sample)/(2H/1H standard) - 1) x 1000.