Extreme environment of fluid lava river at Geldingadalsgos volcano in Iceland

lava magma molten volcano eruption igneous fissure tectonic seismic fluid geothermal orange geology emanating emit crust ooze reykjanes red earth excrete surface dark texture mantle stream liquid dangerous aerial heat glow flow extreme geldingadalsgos environment effusive geldingadalir active drone night above fagradalsfjall radiate natural black geldingardalur river evening iceland