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Nyiragongo volcano photos Nyiragongo (DR Congo) has the world's largest and most active lava lake. Enjoy our pictures taken during several expeditions over the past years.
Igneous or magmatic rocks The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
Colors of Iceland Discover Iceland's fascinating geology and volcanic activity on this relaxed photo and geo tour! Get to see the new volcanic eruption on the Reykjanes peninsula from close!
Divergent plate boundaries in oceans Two ocean plates move apart from each other. Hot upwelling mantle material forms magmas that continuously produce new oceanic crust. An ocean widens.