{"thcode":4,"term":{"code":"1.8","name":"Residuum","parent":"1","scope":"An accumulation or rock debris formed by weathering and remaining essentially in place after all but the least soluble constituents have been removed..."},"uf":[{"name":"grus","usewith":false}],"bt":[{"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":[]}