The continued existence of an Eo-Paleoarchean proto-continent through Proterozoic times in the Aravalli Mountain Range is now widely accepted.The protocontinent’s growth culminated with the outpouring of~2.5 Ga old s...The continued existence of an Eo-Paleoarchean proto-continent through Proterozoic times in the Aravalli Mountain Range is now widely accepted.The protocontinent’s growth culminated with the outpouring of~2.5 Ga old silicic magma by the end of Neoarchean,which produced polyphase granites-gneisses,and migmatites of the‘Banded Gneissic Complex.’The polycyclic Proterozoic orogenic processes involved crustal thickening and thermal perturbations,which reconstituted its pristine character.展开更多
文摘The continued existence of an Eo-Paleoarchean proto-continent through Proterozoic times in the Aravalli Mountain Range is now widely accepted.The protocontinent’s growth culminated with the outpouring of~2.5 Ga old silicic magma by the end of Neoarchean,which produced polyphase granites-gneisses,and migmatites of the‘Banded Gneissic Complex.’The polycyclic Proterozoic orogenic processes involved crustal thickening and thermal perturbations,which reconstituted its pristine character.
