{"id":"S2006001571","label":"Chemostratigraphy","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2006001571","normalized_label":"chemostratigraphy","broader":["http://id.loc.gov/authorities/subjects/sh85053960","http://id.loc.gov/authorities/subjects/sh85054086"],"aliases":["Chemical stratigraphy"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2006001571","provider":"lcsh","revision":"b1baa387b4b62f73","taxonomy_revision":"f050b5d4780b1289","title":"Chemostratigraphy","url":"/topics/S2006001571","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511756354868897376","address_version":"morton4x16-v1","coordinates":[0,478,17566,35840],"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}