{"thcode":61,"term":{"code":733,"name":"volcanology","parent":711,"scope":"the study of volcanoes and their eruptive products."},"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":[{"code":358,"name":"volcanic eruptions","parent":323,"scope":"used for eruptions of lava or ash that cause loss of life, property, or natural resources; disrupt economic activity or transportation; or cause secondary lahars (volcanic mudflows)."}]}