lava fountain

lava fountain
ALASKA VOLCANO OBSERVATORY GLOSSARY
A rhythmic vertical fountainlike eruption of lava.
\
USGS PHOTO GLOSSARY OF VOLCANIC TERMS
A jet of lava sprayed into the air by the rapid formation and expansion of gas bubbles in the molten rock is called a lava fountain. Lava fountains typically range from about 10 to 100 m in height, but occasionally reach more than 500 m. Lava fountains erupt from isolated vents, along fissures, within active lava lakes, and from a lava tube when water gains access to the tube in a confined space (see type of explosive activity where lava enters the sea, from the USGS Hawaiian Volcano Observatory).
\
Photograph by J.D. Griggs on 5 October 1983.
Lava fountain of the Pu`u `O`o cinder and spatter cone on Kilauea Volcano, Hawai`i.
\
Did you know?
• A lava fountain erupted by Izu-Oshima volcano in Japan in 1986 reached a height of 1,600 m, the highest ever recorded.
• The highest lava fountain observed in historical time at Kilauea Volcano in Hawai`i reached about 580 m above the vent during an eruption in Kilauea Iki Crater in 1959.
• The world's longest continuous lava fountain in historical time was erupted from the 25-km long Laki Fissure in southern Iceland in 1783.

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Lava fountain — A lava fountain is a volcanic phenomenon in which lava is forcefully but non explosively ejected from a crater, vent, or fissure. Lava fountains may reach heights of up to 500m. They may occur as a series of short pulses, or a continuous jet of… …   Wikipedia

  • lava fountain — /ˈlavə faʊntən/ (say lahvuh fowntuhn) noun a feature of a volcano in which lava is forcefully ejected from a crater or vent, sometimes up to 500 m into the air …  

  • Lava — flow redirects here. For the programming anti pattern, see Lava flow (programming). For other uses, see Lava (disambiguation) …   Wikipedia

  • dome lava fountain — USGS PHOTO GLOSSARY OF VOLCANIC TERMS See: dome fountain …   Glossary of volcanic terms

  • lava cascade — USGS PHOTO GLOSSARY OF VOLCANIC TERMS A cascade of water is a small waterfall formed as water descends over rocks. In similar fashion, a lava cascade refers to the rush or descent of lava over a cliff. In Hawai i, lava cascades typically occur… …   Glossary of volcanic terms

  • Lava Beds National Monument — Infobox protected area | name = Lava Beds National Monument iucn category = III caption = locator x = 18 locator y = 53 location = Northern California, USA nearest city = Klamath Falls, Oregon lat degrees = 41 lat minutes = 42 lat seconds = 50… …   Wikipedia

  • arching fountain — USGS PHOTO GLOSSARY OF VOLCANIC TERMS Instead of shooting lava vertically from a vent, an arching lava fountain sends lava upward and outward. Arching fountains form when the shape or geometry of an erupting vent forces the lava outward in a… …   Glossary of volcanic terms

  • dome fountain — USGS PHOTO GLOSSARY OF VOLCANIC TERMS Dome fountains are hemispherically shaped lava fountains that form when the upward pressure of magma from the conduit below is in approximate equilibrium with the mass of ponded lava through which it passes.… …   Glossary of volcanic terms

  • fire fountain — GLOSSARY OF VOLCANIC TERMS A spray of lava emitted from a vent or a fissure composed of a highly fluid mixture of basaltic magma and gas (Vespermann and Schminke, 2000, p. 683: Spudis, 2000, p. 697). Deposits from fire fountains produce mantling… …   Glossary of volcanic terms

  • Chain of Craters Road — Lava from Puʻu ʻŌʻō flows through subsurface lava tubes until it meets the ocean, creating the steam plumes seen in the distance from Chain of Craters Road. Chain of Craters Road is a 23 mile winding paved road through the East Rift and coastal… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”