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An overhead view of a volcanic crater, displaying vivid colors, contrasts, and intricate patterns formed by vegetation and rocks, offering insights into geological and ecological processes on the road to Landmannalaugar called Rainbow Mountains in Iceland
Close-up of mud pool at geothermal area of Hverir in Iceland.
Japan Landscape
steam and gases rising from volcanic landscape
Mt.iyo in teshikutu
colorful pond in the geothermal area of leirhnjukur, iceland
Icelandic geyser
vent of a volcanic fumarole in the ground, covered with crystalline sulfur
Seltun geothermal area in Iceland on the Reykjanes Peninsula
Close-up of a mud pool at geothermal area of Hverir (Iceland).
Cracked volcano ground
A steaming stream of water at Hverir Geothermal Area in North Iceland.
Sulfur mountain fumarole
Steaming fumaroles in the geothermal area of Gunnuhver, on the tip of the Reykjanes Peninsula. In the background, Reykjanesvíti, the oldest lighthouse in Iceland, first built in 1878, and rebuilt after an earthquake in 1907-1908 on Bæjarfell hill.
In active volcano crater (volcanic vent) - lava with fragmentary scoriae (cinder block lava), fumarole, solfataras, volcanic emanations (sour, hydrogen sulfide gas), sulfur deposits, etc. Kamchatka
Geldingardalir. aerial view of the Icelandic volcanic site. South Iceland, the site is very active and currently causing road disruptions throughout the geothermal area.
Volcanic fumarole. New Zealand near Rotorua
Gobustan, Azerbaijan: field with craters of mud volcanoes - mud spewing out from the earth due to compactional stress, Azerbaijan has the most mud volcanoes in the world, with around 300 of them, around a third of all mud volcanoes in the world, some thought to have medicinal qualities. Their occurrence in the area around Qobustan is closely linked to the oil and gas deposits there.
The Krysuvik Geothermal Area in Iceland
Hverir, Iceland
Close-up view of the sulphurous zone of Mount Námafjall
Muddy Vulcanos located in Buzau County, Romania, a National Landmark, Gas bubbles coming out a mud volcano. Paclele mici and Paclele Mari
Hole in the ground with hot boiling water filled with minerals such as sulfur alongside the lake Furnas on the Portuguese Azorean Island San Miguel in the center of the North Atlantic Ocean
Jigokudani of Noboribetu onsen
Rugged terrain, Patagonia
Vulcano Island at sunset
A close-up of the yellow rock made of sulfur on Mt. Io. An active volcano in Hokkaido.
Crisp in honey creates a sensation of fire, brightly lit. Abstract background, texture, copy space.
Krafla  is a volcanic caldera of about 10 km in diameter with a 90 km long fissure zone.
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