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  2. Lava lake - Wikipedia

    en.wikipedia.org/wiki/Lava_lake

    Aerial view of a lava lake in Pu’u ’Ō’ō crater, east rift zone of Kīlauea. The crater is about 820 ft (250 m) in diameter. Aerial view of a lava lake atop the Kūpaʻianahā vent on the east rift zone of Kīlauea volcano. Lava lakes are large volumes of molten lava, usually basaltic, contained in a volcanic vent, crater, or broad ...

  3. Corium (nuclear reactor) - Wikipedia

    en.wikipedia.org/wiki/Corium_(nuclear_reactor)

    Corium, also called fuel-containing material (FCM) or lava-like fuel-containing material (LFCM), is a material that is created in a nuclear reactor core during a nuclear meltdown accident. Resembling lava in consistency, it consists of a mixture of nuclear fuel, fission products, control rods, structural materials from the affected parts of the ...

  4. Lava - Wikipedia

    en.wikipedia.org/wiki/Lava

    The word lava comes from Italian and is probably derived from the Latin word labes, which means a fall or slide. [2] [3] An early use of the word in connection with extrusion of magma from below the surface is found in a short account of the 1737 eruption of Vesuvius, written by Francesco Serao, who described "a flow of fiery lava" as an analogy to the flow of water and mud down the flanks of ...

  5. Lava Hot Springs (thermal mineral springs) - Wikipedia

    en.wikipedia.org/wiki/Lava_Hot_Springs_(thermal...

    History. Lava Hot Springs in 1939. The springs were historically used by local Bannock and Shoshone Native Americans. [1] In the early 1800s, explorers and fur trappers knew of the hot springs, and Robert Dempsey built a permanent camp nearby. During the 1840s and 50s, travellers headed to California and Oregon were aware of the springs.

  6. Dacite - Wikipedia

    en.wikipedia.org/wiki/Dacite

    Dacite (/ ˈdeɪsaɪt /) is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides. It has a fine-grained (aphanitic) to porphyritic texture and is intermediate in composition between andesite and rhyolite. It is composed predominantly of plagioclase feldspar and quartz.

  7. Obsidian - Wikipedia

    en.wikipedia.org/wiki/Obsidian

    It is an igneous rock. [6] Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. It is commonly found within the margins of rhyolitic lava flows known as obsidian flows. These flows have a high content of silica, granting them a high viscosity.

  8. Hot spring - Wikipedia

    en.wikipedia.org/wiki/Hot_spring

    The Plunge, built in 1890, is the world's largest natural warm water indoor swimming pool. The hot spring of Saturnia, Italy with around 500 liters a second [36] Lava Hot Springs in Idaho has a flow of 130 liters/second. Glenwood Springs in Colorado has a flow of 143 liters/second.

  9. Basalt - Wikipedia

    en.wikipedia.org/wiki/Basalt

    Basalt (UK: / ˈbæsɔːlt, - əlt /; [1] US: / bəˈsɔːlt, ˈbeɪsɔːlt /) [2] is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low- viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90% of all volcanic rock on Earth is basalt.