BGS Lexicon - Class
Age Based
Identifier"" language=en 
Comment"Unit classified according to age (or composite age or age range). E.g. Devonian rocks, undifferentiated. Always Informal." language=en 
Label"Age Based" language=en 
Is in scheme

namespaces used
bgsrBGS Schemas
bgsrgBGS Geochronology
bgsrlBGS Lexicon of Named Rock Units
dctDublin Core terms
rdfResource Description Framework
rdfsResource Description Framework - Schema
skosSimple Knowledge Organization System
xsdXML Schema Data Type