<http://purl.obolibrary.org/obo/ENVO_01000053>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://purl.obolibrary.org/obo/ENVO_01000030> .
<http://purl.obolibrary.org/obo/ENVO_01000053>	<http://www.geneontology.org/formats/oboInOwl#creation_date>	"2010-03-15T11:29:37Z"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://purl.obolibrary.org/obo/ENVO_01000053>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://purl.obolibrary.org/obo/ENVO_01000053>	<http://www.geneontology.org/formats/oboInOwl#hasOBONamespace>	"ENVO"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://purl.obolibrary.org/obo/ENVO_01000053>	<http://www.geneontology.org/formats/oboInOwl#created_by>	"pbuttigieg"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://purl.obolibrary.org/obo/ENVO_01000053>	<http://www.geneontology.org/formats/oboInOwl#id>	"ENVO:01000053"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://purl.obolibrary.org/obo/ENVO_01000053>	<http://www.w3.org/2000/01/rdf-schema#label>	"marine ultramafic hydrothermal vent biome"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://purl.obolibrary.org/obo/ENVO_01000053>	<http://purl.obolibrary.org/obo/IAO_0000115>	"A marine ultramafic hydrothermal vent biome comprises regions of themarine  hydrothermal vent biome hosted on ultramafic (also referred to as ultrabasic) rocks. Ultramafic rocks are igneous and meta-igneous rocks with very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals  (dark colored, high magnesium and iron content). The Earth's mantle is composed of ultramafic rocks."^^<http://www.w3.org/2001/XMLSchema#string> .