{"thcode":4,"term":{"code":"6.5","name":"Mylonite","parent":"6","scope":"A compact, chert-like rock without cleavage, but with a streaky or banded structure, produced by the extreme granulation and shearing of rocks that have been pulverized and rolled during overthrusting or intense dynamic metamorphism."},"uf":[],"bt":[{"code":"6","name":"Tectonite","parent":"0","scope":"A rock whose fabric reflects the history of its deformation."},{"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":[]}