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GE
biosphere, sandstone, island arc, fold, diorite, rhyolite, rock, porphyry, atmosphere, continental rifting, earthquakes, mantle, folding, era, mid-oceanic ridge, soil, geologic time scale, lithification, tektonic, plate tectonics, convergent plate boundaries, granite, foliated, reservoir, mantle convection, plate boundaries, unconsolidate, mineral deposit, ocean basins, intrusive, strata, epoch