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Subject Item
n2:ENVO_01000053
rdf:type
owl:Class
rdfs:label
marine ultramafic hydrothermal vent biome
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n2:ENVO_01000030
obo:created_by
pbuttigieg
obo:creation_date
2010-03-15T11:29:37Z
n2: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.
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ENVO
obo:id
ENVO:01000053