@prefix agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns0: <http://art.uniroma2.it/ontologies/vocbench#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

agrovoc:xDef_ffdd63e3
  rdf:value "Datum level: A surface or level which is regarded as a base from which other levels can be counted (i.e. a *datum)."@en ;
  ns0:hasSource """A Dictionary of Geology and Earth Sciences, 
Michael Allaby, Oxford University Press, 2020 ISBN 0192575708, 9780192575708""" ;
  dc:created "2022-05-12T15:05:00"^^xsd:dateTime .

agrovoc:c_a1f891c7 skos:definition agrovoc:xDef_ffdd63e3 .