The exposed residual crust in the Eastern Ghats Province records ultrahigh temperature (UHT) metamorphic conditions involving extensive crustal anatexis and melt loss. However, there is disagreement about the tectonic evolution of this late Mesoproterozoic–early Neoproterozoic orogen due to conflicting petrological, structural and geochronological interpretations. One of the petrological disput...

Metamorphism and partial melting of the lower crust is commonly assumed to cause depletion in heat producing elements (HPEs; K, U, Th). In deep crust, volumetrically subordinate metasedimentary layers, which are source crustal granites (sensu lato), host majority Th ± primarily within REE + U Y phosphate mineral monazite. We examine spatial temporal distribution monazite grains rocks from secti...