{"thcode":3,"term":{"code":1208,"name":"volcanic features","parent":816,"scope":"Features formed from those igneous rocks that have reached or nearly reached the Earth's surface before solidifying. [Adapted from Glossary of Geology, 4th ed.]"},"uf":[{"name":"crater lakes","usewith":false},{"name":"dykes (geologic)","usewith":false}],"bt":[{"code":816,"name":"physiographic features","parent":1,"scope":null},{"code":1,"name":"Categories","parent":null,"scope":null}],"nt":[{"code":610,"name":"lava fields","parent":1208,"scope":"Areas of formations resulting from the consolidation of molten rock on the surface of the Earth. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"},{"code":1209,"name":"volcanoes","parent":1208,"scope":"Vents in the surface of the Earth through which magma and associated gases erupt; also, the forms or structures, usually conical, that are produced by the erupted material. [Glossary of Geology, 4th ed.]"}],"rt":[]}