Lexicon
This is the homepage of Macrostrat's geological lexicons, which are assembled from many data sources including Canada's WebLex, the USGS's Geolex, and other sources. The lexicon is continually updated in partnership with researchers and data providers.
Dictionaries
Geologic names
Names of rock units, organized hierarchically and concepts that capture relationships between differently-named rock unitsLithologies
Names and hierarchies for geological materialsIntervals
Time intervalsTimescales
Groups of intervals used together to span intervals of timeLithology attributes
Names and descriptions of lithology attributesEnvironments
Depositional environments and formation mechanismsEconomics
Economic uses of geologic materialsMinerals
Mineral names and formulasStructures
Names and descriptions of geologic structuresSift, Macrostrat's legacy lexicon app, is still available for use as it is gradually brought into this new framework.
Updates
