{"thcode":4,"term":{"code":"4.8","name":"Intrusive carbonatite","parent":"4","scope":"A plutonic rock composed of at least 50% carbonate minerals."},"uf":[],"bt":[{"code":"4","name":"Plutonic rock","parent":"0","scope":"A rock formed at considerable depth by crystallization of magma and\/or by chemical alteration.  It is characteristically medium- to coarse-grained, of granitoid texture."},{"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":[]}