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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.


tetraether index of 86 carbon atoms
an organic compound index that is calculated as the ratio of different isoprenoidal glycerol dialkyl glycerol tetraethers.
ROOT > what > chemical composition > compound > organic compound > organic compound index > tetraether index of 86 carbon atoms

Non Preferred Terms

Measured Variable Terms
This page is used for exploring the WDS-Paleo controlled vocabulary for measured variables (PaST Thesaurus). A term's title and description will appear here. Terms marked as 'metaterm' are not searchable in the Variables Advanced Search, but serve to organize terms into a hierarchy.