Volcano were proposed for volcano behavior before the modern understanding of the Earth's mantle structure as a semisolid material was developed. For decades after awareness that compression and radioactive materials may be heat sources, their contributions were specifically discounted. Volcanic action was often attributed to chemical reactions and a thin layer of molten rock near the surface. Volcano A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Earth's volcanoes occur because its crust is broken into 17 major,
Volcano House, Iceland Opal, Obsidian, Rock crystal and Iceland spar. Volcano House offers guidance and information throughout the exhibit. The interior design of the exhibition is meant to look like it's from 1973 which is the year when the volcanic eruption in Heimaey in the Westman Islands occurred. The Volcano House cinema presents two documentaries covering two of the most powerful volcanic eruptions that have occurred in Iceland over the last 40 years - the 1973 eruption in Heimaey on the Westman Islands, and the 2010 eruption of Eyjafjallajökull in South Iceland. The documentaries are exclusively made for Volcano House and can not