This is an RDF/OWL representation of the GeoSciML Geologic Timescale model, which has been adapted from the model described in Cox, S.J.D, & Richard, S.M. (2005) A formal model for the geologic timescale and GSSP, compatible with geospatial information transfer standards, Geosphere, Geological Society of America 1/3, 119–137. The permitted nesting relationships between eras of different ranks are axiomatized as local constraints using interval relationships from OWL-Time.
Cox, S.J.D, & Richard, S.M. (2005) A formal model for the geologic timescale and GSSP, compatible with geospatial information transfer standards, Geosphere, Geological Society of America 1/3, 119–137.
2017-04-28 - removed imports ISO ontologies
isc:Calabrian rdf:type gts:Age ; rdf:type gts:GeochronologicEra ; rdf:type skos:Concept ; rdf:type time:ProperInterval ; gts:rank rank:Age ; rdfs:comment "older bound -1.80 Ma"@en ; rdfs:comment "younger bound -0.781 Ma"@en ; rdfs:label "Calabrian Age"@en ; skos:notation "a1.1.1.1.2.3"^^gts:EraCode ; skos:prefLabel "Calabr"@cs ; skos:prefLabel "Calabrian"@en ; time:hasBeginning isc:BaseCalabrian ; time:hasEnd isc:BaseMiddlePleistocene ; time:intervalDuring isc:Pleistocene ; time:intervalIn isc:Pleistocene ; time:intervalMeets isc:MiddlePleistocene ; time:intervalMetBy isc:Gelasian ; .
isc:Proterozoic rdf:type gts:Eon ; rdf:type gts:GeochronologicEra ; rdf:type skos:Concept ; rdf:type time:ProperInterval ; gts:rank rank:Eon ; rdfs:comment "older bound -2500 Ma"@en ; rdfs:comment "younger bound -541.0 +|-1.0 Ma"@en ; rdfs:label "Proterozoic Eon"@en ; skos:notation "a2.1"^^gts:EraCode ; skos:prefLabel "Proterosoikum"@et ; skos:prefLabel "Proterozoic"@en ; time:hasBeginning isc:BaseProterozoic ; time:hasEnd isc:BasePhanerozoic ; time:intervalContains isc:Mesoproterozoic ; time:intervalFinishedBy isc:Neoproterozoic ; time:intervalFinishes isc:Precambrian ; time:intervalIn isc:Precambrian ; time:intervalMeets isc:Cambrian ; time:intervalMeets isc:Fortunian ; time:intervalMeets isc:Paleozoic ; time:intervalMeets isc:Phanerozoic ; time:intervalMeets isc:Terreneuvian ; time:intervalMetBy isc:Archean ; time:intervalMetBy isc:Neoarchean ; time:intervalStartedBy isc:Paleoproterozoic ; .
isc:Cisuralian rdf:type gts:Epoch ; rdf:type gts:GeochronologicEra ; rdf:type skos:Concept ; rdf:type time:ProperInterval ; gts:rank rank:Epoch ; rdfs:comment "older bound -298.9 +|-0.15 Ma"@en ; rdfs:comment "younger bound -272.95 +|-0.11 Ma"@en ; rdfs:label "Cisuralian Epoch"@en ; skos:notation "a1.1.3.1.3"^^gts:EraCode ; skos:prefLabel "Cisural"@cs ; skos:prefLabel "Cisuralian"@en ; skos:prefLabel "Kisuralis"@lt ; time:hasBeginning isc:BasePermian ; time:hasEnd isc:BaseGuadalupian ; time:intervalContains isc:Artinskian ; time:intervalContains isc:Sakmarian ; time:intervalFinishedBy isc:Kungurian ; time:intervalIn isc:Permian ; time:intervalMeets isc:Guadalupian ; time:intervalMeets isc:Roadian ; time:intervalMetBy isc:Carboniferous ; time:intervalMetBy isc:Gzhelian ; time:intervalMetBy isc:Pennsylvanian ; time:intervalMetBy isc:UpperMississippian ; time:intervalMetBy isc:UpperPennsylvanian ; time:intervalStartedBy isc:Asselian ; time:intervalStarts isc:Permian ; .
isc:Mesoproterozoic rdf:type gts:Era ; rdf:type gts:GeochronologicEra ; rdf:type skos:Concept ; rdf:type time:ProperInterval ; gts:rank rank:Era ; rdfs:comment "older bound -1600 Ma"@en ; rdfs:comment "younger bound -1000 Ma"@en ; rdfs:label "Mesoproterozoic Era"@en ; skos:notation "a2.1.2"^^gts:EraCode ; skos:prefLabel "Mesoproterozoic"@en ; skos:prefLabel "Mesoproterozoico"@es ; time:hasBeginning isc:BaseMesoproterozoic ; time:hasEnd isc:BaseNeoproterozoic ; time:intervalContains isc:Ectasian ; time:intervalDuring isc:Proterozoic ; time:intervalFinishedBy isc:Stenian ; time:intervalIn isc:Proterozoic ; time:intervalMeets isc:Neoproterozoic ; time:intervalMeets isc:Tonian ; time:intervalMetBy isc:Paleoproterozoic ; time:intervalMetBy isc:Statherian ; time:intervalStartedBy isc:Calymmian ; .
isc:Calabrian skos:notation "a1.1.1.1.2.3"^^gts:EraCode .
Geochronologic Boundary
Boundary between geochronologic eras, defined with reference to an agreed stratigraphic point. Typically denoted as the 'base of' the succeeding era
isc:BaseJurassic rdf:type gts:GeochronologicBoundary ; rdf:type thors:EraBoundary ; rdf:type skos:Concept ; rdf:type time:Instant ; gts:stratotype isc:BaseJurassicSP ; rdfs:label "Base of Jurassic"@en ; skos:altLabel "Base of Hettangian"@en ; skos:altLabel "Base of Lower Jurassic"@en ; skos:prefLabel "Base of Jurassic"@en ; time:inTemporalPosition isc:BaseJurassicTime ; .
Geochronologic Era
Named interval within the geologic timescale, of any rank
isc:Mesozoic rdf:type gts:Era ; rdf:type gts:GeochronologicEra ; rdf:type skos:Concept ; rdf:type time:ProperInterval ; rdfs:label "Mesozoic Era"@en ; skos:notation "a1.1.2"^^gts:EraCode ; skos:prefLabel "Mesosoikum"@et ; skos:prefLabel "Mesozoic"@en ; time:hasBeginning isc:BaseMesozoic ; time:hasEnd isc:BaseCenozoic ; .
Geochronologic Era Rank
Rank of geologic era within the standard hierarchy: Eon, Era, Period, Epoch, Age
rank:Period rdf:type gts:GeochronologicEraRank ; rdf:type skos:Concept ; rdfs:label "Period" ; .
Geologic Timescale
The hierarchical ordinal/nominal reference system known as the Geologic Timescale
ts:gts2019 rdf:type gts:GeologicTimescale ; rdf:type skos:ConceptScheme ; rdf:type time:TRS ; thors:component isc:Phanerozoic ; thors:component isc:Precambrian ; thors:referencePoint isc:BasePhanerozoic ; thors:referencePoint isc:FormationOfEarth ; thors:referencePoint isc:Present ; rdfs:label "Geologic Time Scale (2019)"@en ; .
Numeric Era Boundary
Boundary between geochronologic eras, defined by an agreed chronometric position (i.e. numeric age). Typically denoted as the 'base of' the succeeding era
isc:BaseProterozoic rdf:type gts:NumericEraBoundary ; rdf:type thors:EraBoundary ; rdf:type skos:Concept ; rdf:type time:Instant ; gts:ratifiedGSSP true ; rdfs:label "Base of Proterozoic"@en ; skos:prefLabel "Base of Proterozoic"@en ; time:inTemporalPosition isc:BaseProterozoicTime ; .
Period
isc:Stenian rdf:type gts:GeochronologicEra ; rdf:type gts:Period ; rdf:type skos:Concept ; rdf:type time:ProperInterval ; gts:rank rank:Period ; rdfs:comment "older bound -1200 Ma"@en ; rdfs:comment "younger bound -1000 Ma"@en ; rdfs:label "Stenian Period"@en ; skos:notation "a2.1.2.1"^^gts:EraCode ; skos:prefLabel "Esteniense"@es ; skos:prefLabel "Stenian"@en ; time:hasBeginning isc:BaseStenian ; time:hasEnd isc:BaseNeoproterozoic ; time:intervalFinishes isc:Mesoproterozoic ; time:intervalIn isc:Mesoproterozoic ; time:intervalMeets isc:Neoproterozoic ; time:intervalMeets isc:Tonian ; time:intervalMetBy isc:Ectasian ; .
A subclass of Geologic Event (placeholder)
Stratigraphic Event
Geologic event correlated with a specified stratotype.
Stratigraphic Point
A specified position within an agreed stratigraphic section, used to calibrate the temporal position (age) of a boundary within the geologic timescale.
isc:BaseJurassicSP rdf:type gts:StratigraphicPoint ; dct:source "Episodes 36/3, p. 162-198, 2013"@en ; gts:boundaryLevel "5.80 m above top of Koessen Formation"@en ; gts:correlationEvent "FO of ammonite Psiloceras spelae tirolicum, FO of aragonitic foraminifer Praegubkinella turgescens"@en ; gts:ratifiedGSSP true ; gts:status "Ratified 2010"@en ; geo:hasGeometry isc:BaseJurassic-location ; rdfs:comment "Kuhjoch section,Tyrol, Austria "@en ; rdfs:label "Stratotype Point Base of Jurassic"@en ; rdfs:seeAlso <http://www.stratigraphy.org/GSSP/Hettangian.pdf> ; rdfs:seeAlso <http://www.stratigraphy.org/GSSP/index.html> ; skos:prefLabel "Stratotype Point Base of Jurassic"@en ; .
Stratigraphic Section
An agreed stratigraphic section, which hosts a stratigraphic point that is used to calibrate the temporal position (age) of a boundary within the geologic timescale.
isc:Mississippian rdf:type gts:GeochronologicEra ; rdf:type gts:Sub-Period ; rdf:type skos:Concept ; rdf:type time:ProperInterval ; gts:rank rank:Sub-Period ; rdfs:comment "older bound -358.9 +|-0.4 Ma"@en ; rdfs:comment "younger bound -323.2 +|-0.4 Ma"@en ; rdfs:label "Mississippian Sub-period"@en ; skos:notation "a1.1.3.2.2"^^gts:EraCode ; skos:prefLabel "Misisipis"@lt ; skos:prefLabel "Mississippian"@en ; time:hasBeginning isc:BaseCarboniferous ; time:hasEnd isc:BasePennsylvanian ; time:intervalContains isc:MiddleMississippian ; time:intervalFinishedBy isc:UpperMississippian ; time:intervalIn isc:Carboniferous ; time:intervalMeets isc:Bashkirian ; time:intervalMeets isc:LowerPennsylvanian ; time:intervalMeets isc:Pennsylvanian ; time:intervalMetBy isc:Devonian ; time:intervalMetBy isc:Famennian ; time:intervalMetBy isc:UpperDevonian ; time:intervalStartedBy isc:LowerMississippian ; time:intervalStarts isc:Carboniferous ; .
isc:Precambrian rdf:type gts:GeochronologicEra ; rdf:type gts:Super-Eon ; rdf:type skos:Concept ; rdf:type time:ProperInterval ; gts:rank rank:Super-Eon ; rdfs:comment "older bound -4567 +|-1 Ma"@en ; rdfs:comment "younger bound -541.0 +|-1.0 Ma"@en ; rdfs:label "Precambrian Supereon"@en ; skos:notation "a2"^^gts:EraCode ; skos:prefLabel "Precambrian"@en ; skos:prefLabel "Précambrien"@fr ; time:hasBeginning isc:FormationOfEarth ; time:hasEnd isc:BasePhanerozoic ; time:intervalContains isc:Archean ; time:intervalFinishedBy isc:Proterozoic ; time:intervalMeets isc:Cambrian ; time:intervalMeets isc:Fortunian ; time:intervalMeets isc:Paleozoic ; time:intervalMeets isc:Phanerozoic ; time:intervalMeets isc:Terreneuvian ; time:intervalStartedBy isc:Hadean ; .
the level within the section of the point characterizing the boundary
isc:BaseBathonianSP a gts:StratigraphicPoint ; gts:boundaryLevel "Base of limestone bed RB07 "@en ; gts:correlationEvent "Ammonite FAD Gonolkite convergens (defines Base of Zigzagiceras zigzag Zone)"@en ; gts:ratifiedGSSP true ; gts:status "Ratified 2008"@en ; geo:hasGeometry isc:BaseBathonian-location ; rdfs:comment "Ravin du Bes, Bas Auran area, Alpes de Haute Provence, France "@en ; rdfs:label "Stratotype Point Base of Bathonian"@en ; .
the stratigraphic event that is intended to be represented by this stratigraphic point
stratigraphic event corresponding with this boundary or point
geologic description of the stratigraphic section
geologic setting of the stratigraphic section
isc:BaseAeronianTime a time:TimePosition ; gts:positionalUncertainty isc:BaseAeronianUncertainty ; time:hasTRS <http://resource.geosciml.org/classifier/cgi/geologicage/ma> ; time:numericPosition 440.8 ; .
Elements of all ranks are included in the class 'gts:GeochronologicEra'. The rank may be indicated by membership of a sub-class, or is indicated using the 'gts:rank' property.
isc:Aalenian a gts:Age ; a gts:GeochronologicEra ; a skos:Concept ; a time:ProperInterval ; gts:rank rank:Age ; .
flag to indicate the status of the calibration details of a geochronologic boundary - 'true' if ratified by ICS
geochronologic boundary corresponding with this stratigraphic point
geochronologic era corresponding with this stratigraphic section
formal ICS status of this boundary and point
Description of the formal ICS status of this boundary and point
the characteristic stratigraphic point or section corresponding with a geochronologic concept
isc:BaseAeronian a gts:GeochronologicBoundary ; a thors:EraBoundary ; a skos:Concept ; a time:Instant ; gts:stratotype isc:BaseAeronianSP ; rdfs:label "Base of Aeronian"@en ; skos:prefLabel "Base of Aeronian"@en ; time:inTemporalPosition isc:BaseAeronianTime ; .
Stephen M Richard
Simon J D Cox