tectonic plate traffic sign

accretion active activity basin blue boundary cartography cloud collision conduction continent continental convergent crashing crust deep destructive divergent drift earth earthquake edge education eruption fractured geography geologic geology globe heat hot illustration lava layer line magma mantle map melt mineral mountain ocean oceanic order pastry plate process ridge satellite scheme science scientific sea sign sky structure system tectonic theory threedimensional traffic transform trench volcanic volcano wave waves zone