{"thcode":61,"term":{"code":717,"name":"historical geology","parent":711,"scope":"the study of earth history, generally focusing on changes at the Earth's surface."},"uf":[],"bt":[{"code":711,"name":"geology","parent":639,"scope":"the study of the Earth's structure, composition, past and present processes, and history."},{"code":639,"name":"discipline","parent":1,"scope":null},{"code":1,"name":"Marine Realms Information Bank (MRIB) keyword categories","parent":null,"scope":null}],"nt":[],"rt":[]}