{"thcode":2,"term":{"code":1711,"name":"reaction transport","parent":435,"scope":"Chemical reactions occurring during ground-water flow."},"uf":[],"bt":[{"code":435,"name":"geochemical processes","parent":101,"scope":"Processes affecting the amount, distribution, or structure of chemical elements in air, water, soil, rocks, and minerals."},{"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":514,"name":"groundwater flow","parent":1667,"scope":"Movement of subsurface water in the saturated zone from areas of recharge to areas of discharge."}]}