{"thcode":4,"term":{"code":"4.4.2","name":"Granite","parent":"4.4","scope":"A plutonic rock defined in the QAPF diagram as having Q between 20 and 60% and P\/(A+P) between 10 and 65%"},"uf":[],"bt":[{"code":"4.4","name":"Granitoid","parent":"4","scope":"A general term for all phaneritic igneous rocks dominated by quartz and feldspars."},{"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":[{"code":"4.4.2.2","name":"Metaluminous granite","parent":"4.4.2","scope":"A granite with aluminum oxide > sodium oxide + potassium oxide, but with aluminum oxide < sodium oxide + potassium oxide + calcium oxide; typical accessories include: hornblende, epidote, melilite, or biotite + pyroxene"},{"code":"4.4.2.4","name":"Peralkaline granite","parent":"4.4.2","scope":"A granite with aluminum oxide < sodium oxide + potassium oxide; typical accessories include: soda pyroxene and soda amphibole"},{"code":"4.4.2.1","name":"Peraluminous granite","parent":"4.4.2","scope":"A granite with aluminum oxide > sodium oxide + potassium oxide + calcium oxide; typical accessories include: muscovite, biotite, corundum, topaz, garnet"},{"code":"4.4.2.3","name":"Subaluminous granite","parent":"4.4.2","scope":"A granite with aluminum oxide approximately equal to sodium oxide + potassium oxide; typical accessories include: olivine, orthopyroxene, clinopyroxene"}],"rt":[]}