{"id":"S85110636","label":"Radioactive tracers in hydrogeology","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85110636","normalized_label":"radioactive tracers in hydrogeology","broader":["http://id.loc.gov/authorities/subjects/sh85057470","http://id.loc.gov/authorities/subjects/sh85063439"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85110636","provider":"lcsh","revision":"3e258753732901eb","taxonomy_revision":"f050b5d4780b1289","title":"Radioactive tracers in hydrogeology","url":"/topics/S85110636","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9549953654539568644","address_version":"morton4x16-v1","coordinates":[0,20,19133,45056],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}