#geology #Þingvellir #national park #iceland #mid atlantic ridge #unesco #science #plate tectonics #the earth story

#geology #Þingvellir #national park #iceland #mid atlantic ridge #unesco #science #plate tectonics #the earth story

#iceland #travel #plate tectonics #geology #thingvellir #Þingvellir #silfra #earthquake #mantle #spreading center #underwater #tourism #unesco #national park #the earth story