cinder cone

ALASKA VOLCANO OBSERVATORY GLOSSARY
A volcanic cone built entirely of loose fragmented material (pyroclastics).
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GLOSSARY OF VOLCANIC TERMS
A small, generally conical-shaped volcano formed by accumulation of ejected cinders and other volcanic debris that falls back to the earth close (proximal) to the location of the volcanic vent (Gardner et al., 1995).
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USGS PHOTO GLOSSARY OF VOLCANIC TERMS
A cinder cone is a steep, conical hill of volcanic fragments that accumulate around and downwind from a vent. The rock fragments, often called cinders or scoria, are glassy and contain numerous gas bubbles quot;frozenquot; into place as magma exploded into the air and then cooled quickly. Cinder cones range in size from tens to hundreds of meters tall.
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Photograph by J.P. Lockwood on 1 December 1975
This cinder cone (Pu`u ka Pele) was erupted low on the southeast flank of Mauna Kea Volcano. The cone is 95 m in height, and the diameter of the crater at the top is 400 m. Hualalai Volcano in background.
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Did you know?
Cinder cones usually erupt lava flows, either through a breach on one side of the crater or from a vent located on a flank. Lava rarely issues from the top (except as a fountain) because the loose, non cemented cinders are too weak to support the pressure exerted by molten rock as it rises toward the surface through the central vent.
Perhaps the most famous cinder cone, Paricutin, grew out of a corn field in Mexico in 1943 from a new vent. Eruptions continued for 9 years, built the cone to a height of 424 meters, and produced lava flows that covered 25 km2.
Cinder cones are commonly found on the flanks of shield volcanoes, stratovolcanoes, and calderas. For example, geologists have identified nearly 100 cinder cones on the flanks of Mauna Kea, a shield volcano located on the Island of Hawai`i (these cones are also referred to as scoria cones and cinder and spatter cones).
The Earth's most historically active cinder cone is Cerro Negro in Nicaragua. It is part of a group of four young cinder cones NW of Las Pilas volcano. Since it was born in 1850, it has erupted more than 20 times, most recently in 1992 and 1995.

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

Look at other dictionaries:

  • Cinder cone — For peaks named Cinder Cone , see list of peaks named Cinder Cone. Schematic representation of the internal structure of a typical cinder cone. A cinder cone or scoria cone is a steep conical hill of volcanic fragments that accumulate around and… …   Wikipedia

  • Cinder Cone —  Ne doit pas être confondu avec Cône volcanique. Cinder Cone Photo aérienne en fausses couleurs …   Wikipédia en Français

  • cinder cone — Geol. a small, conical volcano built of ash and cinders. [1840 50] * * * or ash cone Deposit around a volcanic vent, formed by rock fragments or cinders that accumulate and gradually build a conical hill with a bowl shaped crater at the top.… …   Universalium

  • cinder cone — noun a cone formed round a volcanic vent by fragments of lava from eruptions …   English new terms dictionary

  • cinder cone — noun Date: 1849 a conical hill formed by the accumulation of volcanic debris around a vent …   New Collegiate Dictionary

  • cinder cone — noun A conical deposit of rock fragments around a volcano …   Wiktionary

  • cinder cone —    A conical hill formed by the accumulation of cinders and other pyroclastics, normally of basaltic or andesitic composition. Slopes generally exceed 20 percent.    GG …   Glossary of landform and geologic terms

  • cinder cone — noun : a conical hill formed by the accumulation of volcanic debris around a vent …   Useful english dictionary

  • Cinder Cone (British Columbia) — Cinder Cone Elevation 1,910 m (6,266 ft) …   Wikipedia

  • Cinder Cone and the Fantastic Lava Beds — Cinder Cone  Ne doit pas être confondu avec Cône volcanique. Cinder Cone Photo aérienne en fausses couleurs …   Wikipédia en Français

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