<?xml version="1.0" encoding="UTF-8"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:obo_purl="http://purl.obolibrary.org/obo/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:oboinowl_gen="http://www.geneontology.org/formats/oboInOwl#" xmlns:metadata_def="http://data.bioontology.org/metadata/def/"> <owl:Class rdf:about="http://purl.obolibrary.org/obo/ENVO_00002250"> <rdfs:subClassOf rdf:resource="http://purl.obolibrary.org/obo/ENVO_00001998"/> <rdfs:label>plinthosol</rdfs:label> <skos:notation>ENVO:00002250</skos:notation> <obo_purl:IAO_0000115>Plinthosols are soils with plinthite, petroplinthite or pisoliths. Plinthite is an Fe-rich (in some cases also Mn-rich), humus-poor mixture of kaolinitic clay (and other products of strong weathering such as gibbsite) with quartz and other constituents that changes irreversibly to a layer with hard nodules, a hardpan or irregular aggregates on exposure to repeated wetting and drying. Petroplinthite is a continuous, fractured or broken sheet of connected, strongly cemented to indurated nodules or mottles. Pisoliths are discrete strongly cemented to indurated nodules. Both petroplinthite and pisoliths develop from plinthite by hardening.</obo_purl:IAO_0000115> <oboinowl_gen:hasOBONamespace>ENVO</oboinowl_gen:hasOBONamespace> <oboinowl_gen:id>ENVO:00002250</oboinowl_gen:id> <oboinowl_gen:inSubset rdf:resource="http://purl.obolibrary.org/obo/ENVO_03605015"/> <metadata_def:prefLabel>plinthosol</metadata_def:prefLabel> <metadata_def:mappingLoom>plinthosol</metadata_def:mappingLoom> <metadata_def:mappingSameURI rdf:resource="http://purl.obolibrary.org/obo/ENVO_00002250"/> </owl:Class> <rdf:Description rdf:about="http://purl.obolibrary.org/obo/ENVO_00002250"> <metadata_def:mappingSameURI rdf:resource="http://purl.obolibrary.org/obo/ENVO_00002250"/> </rdf:Description> </rdf:RDF>