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In a fiery spray of lava and ash, Italy’s Mount Etna erupted on July 4, sending molten rock cascading down one of Europe’s most active volcanoes and causing a temporary shutdown of the Catania ...
The lava is flowin'. Molten rock likely from miles underground is flowing out of a newly opened fissure in the ground on Iceland's Reykjanes Peninsula. It's the latest activity in an already ...
The terms lava stone and lava rock are more used by marketers than geologists, who would likely say "volcanic rock" (because lava is a molten liquid and rock is solid). "Lava stone" may describe anything from a friable silicic pumice to solid mafic flow basalt, and is sometimes used to describe rocks that were never lava, but look as if they ...
The oldest lava flows cover about 23 square miles (60 km 2). The cones are aligned and possibly formed above two roughly north-south trending fissures. [3] Vulcan (also called J Volcano) is the highest feature. Its base is made of cinder, but the crater contains a lava dome that was cut by an explosive eruption. [2]
The most recent eruption on the Reykjanes peninsula, home to some 30,000 people or nearly 8% of the country's total population, ended on June 22 after spewing fountains of molten rock for 24 days.
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 ...
Kilauea, a volcano on Hawaii's Big Island, erupted early Wednesday morning in a spectacular display. Video of the eruption showed the dark night sky lit up with fire and glowing lava, which began ...
The zircon and phenocrysts rims recorded that the magma of the Lava Creek Tuff was generated from a mix of mantle, Archean crust, and shallow hydrothermally altered intra-caldera rocks. Member A and B were sourced from separate magma reservoirs prior to eruption, [ 19 ] at a depth range of 3–6 km (1.9–3.7 mi) [ 20 ] and a temperature of 790 ...