{"thcode":4,"term":{"code":"1.7.2","name":"Coral","parent":"1.7","scope":"A hard calcareous substance consisting of the continuous skeleton secreted by coral polyps for their support and habitation and found in single specimens growing plant-like on the sea bottom or in extensive, solidified accumulations (coral reefs)."},"uf":[],"bt":[{"code":"1.7","name":"Biogenic material","parent":"1","scope":"An organic material produced directly by the physiologic activities of organisms, either plant or animal"},{"code":"1","name":"Unconsolidated material","parent":"0","scope":"A sediment that is loosely arranged or unstratified, or whose particles are not cemented together, found either at the surface or at depth."},{"code":"0","name":"Earth material","parent":null,"scope":"Geologic map unit classification (Bruce R. Johnson) version 6.2: A hierarchical classification of earth materials for digital geologic maps."}],"nt":[],"rt":[]}