0
GE
spreadnig centers, epoch, subduction, fossil fuels, fold, shale, reservoir, seismology, metamorphic rocks, sedimentary rocks, foliated, era, atmosphere, earthquakes, rudy, plate boundaries, rhyolite, hydrosphere, hydrogeology, benioff zone, subduction, mineralogy, plutonic, biosphere, eruptions, mineral deposit, palaeontology, strata, rock, solidification, continental rifting, stratigraphy