@prefix qx8: <http://data.loterre.fr/ark:/67375/QX8> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

qx8: a skos:ConceptScheme .
qx8:-7SP404T5-F
  skos:prefLabel "shale noir"@fr, "black shale"@en ;
  a skos:Concept ;
  skos:broader qx8:-SJ602KQ9-B .

qx8:-SJ602KQ9-B
  skos:exactMatch <http://data.loterre.fr/ark:/67375/26L-X0RSNVV0-1>, <https://fr.wikipedia.org/wiki/Shale>, <https://en.wikipedia.org/wiki/Shale> ;
  skos:definition "Le shale (terme anglais) est une roche sédimentaire détritique litée, à grain très fin. Ce terme s'applique aux roches argileuses ou marneuses, voire aux schistes sédimentaires qui peuvent contenir du gaz naturel, contrairement aux schistes de type métamorphique qui ont subi des conditions de température situées entre 250 °C et 300 °C, laissant s'échapper le méthane, principale composante du gaz naturel.  (Adapté de : <a href=\"https://fr.wikipedia.org/wiki/Shale\">https://fr.wikipedia.org/wiki/Shale</a>)"@fr, "Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2Si2O5(OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. Shale is characterized by its tendency to split into thin layers (laminae) less than one centimeter in thickness. This property is called fissility. Shale is the most common sedimentary rock. The term shale is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the narrower sense of clay-rich fissile mudrock. (Adapted from: <a href=\"https://en.wikipedia.org/wiki/Shale\">https://en.wikipedia.org/wiki/Shale</a>)"@en ;
  skos:narrower qx8:-7SP404T5-F ;
  a skos:Concept ;
  skos:prefLabel "shale"@fr, "shale"@en ;
  skos:inScheme qx8: ;
  skos:broader qx8:-XQ3BWRC5-F .

qx8:-XQ3BWRC5-F
  skos:prefLabel "sedimentary rock"@en, "roche sédimentaire"@fr ;
  a skos:Concept ;
  skos:narrower qx8:-SJ602KQ9-B .