cone of sulfur deposits around a fumarole in a solfataric field illuminated by the sun against a stormy landscape in the distance

solfatara volcanic gas fumarole field slope mendeleev volcano kunashir island steam smoke landscape nature sulfur sulfide mineral geology vapor hydrothermal deposit cone crystals crystallization native kurile kuril emits sulfurous natural activity smoking geyser hollow toxic hot poisonous yellow color colored acidic fume tephra deposits solfataric illuminated sun stormy distance distance