{"thcode":61,"term":{"code":105,"name":"hydrothermal vent","parent":101,"scope":"a terrestrial or submarine vent discharging geothermally heated groundwater."},"uf":[],"bt":[{"code":101,"name":"groundwater","parent":94,"scope":"subsurface water saturating porous earth materials."},{"code":94,"name":"feature type","parent":1,"scope":null},{"code":1,"name":"Marine Realms Information Bank (MRIB) keyword categories","parent":null,"scope":null}],"nt":[],"rt":[]}