# tag: maxage
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
prefix iodp: <http://data.oceandrilling.org/core/1/> 
prefix foaf: <http://xmlns.com/foaf/0.1/> 
prefix owl: <http://www.w3.org/2002/07/owl#> 
prefix xsd: <http://www.w3.org/2001/XMLSchema#> 
prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
SELECT (MAX(?age) AS ?maxage) (MIN(?age) AS ?minage)
WHERE {
   ?s iodp:leg "192" .
   ?s iodp:ma ?age   .
}

# tag: query2
PREFIX chronos: <http://www.chronos.org/loc-schema#>
PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>
SELECT  ?dataset ?ob  ?age ?depth ?long ?lat
FROM <http://chronos.org/janusamp#>
WHERE {
  ?ob chronos:age ?age . 
  ?ob chronos:depth ?depth . 
  ?ob <http://purl.org/linked-data/cube#dataSet>  ?dataset .
  ?dataset geo:long ?long .
  ?dataset geo:lat ?lat .
   ?dataset chronos:leg "{{.Leg}}" .  
   ?dataset chronos:site "{{.Site}}" .
   ?dataset chronos:hole "{{.Hole}}" . 
}
ORDER BY ?dataset DESC(?age)
LIMIT 1

# tag: csiro
prefix gts: <http://resource.geosciml.org/ontology/timescale/gts#> 
prefix thors: <http://resource.geosciml.org/ontology/timescale/thors#> 
prefix tm: <http://def.seegrid.csiro.au/isotc211/iso19108/2002/temporal>
PREFIX isc: <http://resource.geosciml.org/classifier/ics/ischart/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT *
WHERE {
                 ?era gts:rank ?rank .
                 ?era thors:begin/tm:temporalPosition/tm:value ?begin .
                 ?era thors:begin/tm:temporalPosition/tm:frame <http://resource.geosciml.org/classifier/cgi/geologicage/ma> .
                 ?era thors:end/tm:temporalPosition/tm:value ?end .
                 ?era thors:end/tm:temporalPosition/tm:frame <http://resource.geosciml.org/classifier/cgi/geologicage/ma> .
                 ?era rdfs:label ?name .
                 BIND ( "439."^^xsd:decimal AS ?targetAge )
                 FILTER ( ?targetAge > xsd:decimal(?end) )
                 FILTER ( ?targetAge < xsd:decimal(?begin) )
}

<http://host.geolink.org/sesar/id/dataset/ffaf89d9-8e7f-4770-b049-224d87eb2850>
    a <http://schema.geolink.org/1.0/base/main#Dataset> ;
    rdfs:label "RC1307, Coring>PistonCorer"
    geolink:hasCruise <http://lod.bco-dmo.org/geolink/id/deployment/57413>
    geolink:hasTitle
    geolink:hasAbstract