{"thcode":2,"term":{"code":859,"name":"paleoceanography","parent":818,"scope":"Study of the oceans in the geologic past, including their physical, chemical, biologic, and geologic history."},"uf":[],"bt":[{"code":818,"name":"ocean sciences","parent":291,"scope":"Sciences involved in the study of geological, biological, chemical, and physical characteristics and processes of the oceans."},{"code":291,"name":"earth sciences","parent":1019,"scope":"Broad term for all science related to the study of the earth."},{"code":1019,"name":"sciences","parent":1,"scope":"Major educational fields, fields of study, and professional groupings within USGS."},{"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":861,"name":"paleontology","parent":291,"scope":"Study of life in past geologic time based on fossil plants and animals."}]}