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Ijen volcano photos Ijen volcano in East Java is famous for its turquoise acid crater lake and the large sulfur deposits that are being mined by local workers. At night, the scene is illuminated by ghostly blue flames, as sulfur ignites.
Glossary of geologic terms A growing list of often illustrated explanations and definitions of geological terms and keywords, with focus on volcanology and seismology.
Volcanoes & Earthquakes Look up active volcanoes and earthquakes worldwide on our web-app, featuring an interactive map you can embed on your website or use as stand-alone tool.
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.