A method of dating geological events
Approximate

http://data.bgs.ac.uk/id/Geochronology/AgeDeterminationType/APPROX
Statushttp://data.bgs.ac.uk/ref/CurrentStatus/CURRENT
Schemahttp://data.bgs.ac.uk/ref/Geochronology/AgeDeterminationType
Label"Approximate" language=en 
Typehttp://www.w3.org/2004/02/skos/core#Concept
Definition"Approximate date on ICS International Stratigraphic Chart" language=en 
Is in schemehttp://data.bgs.ac.uk/ref/Geochronology/AgeDeterminationType
Preferred label"Approximate" language=en 

namespaces used
bgsrBGS Schemas
bgsrcBGS Current Status Codes
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