{"thcode":2,"term":{"code":482,"name":"glaciation","parent":451,"scope":"The geologic processes involved in the formation, movement, changes, and effects of large ice masses (glaciers)."},"uf":[],"bt":[{"code":451,"name":"geologic processes","parent":101,"scope":"All types of processes involving geological structures."},{"code":101,"name":"biological and physical processes","parent":1174,"scope":"All continuing activities, functions, and phenomena associated with organisms and non-living matter."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[],"rt":[{"code":404,"name":"foliation (geologic)","parent":459,"scope":"The property of rocks or glaciers splitting into thin layers or plates due to the orientation of crystals and dynamic movement."},{"code":484,"name":"glaciology","parent":291,"scope":"Science dealing with the features, origins, processes, and properties of snow, ice, glaciers, and ice sheets."},{"code":1072,"name":"snow and ice cover","parent":287,"scope":"Accumulation of snow or ice blanketing land surfaces."}]}