When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Volcanic cone - Wikipedia

    en.wikipedia.org/wiki/Volcanic_cone

    A tuff cone, sometimes called an ash cone, is a small monogenetic volcanic cone produced by phreatic (hydrovolcanic) explosions directly associated with magma brought to the surface through a conduit from a deep-seated magma reservoir. They are characterized by high rims that have a maximum relief of 100–800 meters (330–2,620 ft) above the ...

  3. Cinder cone - Wikipedia

    en.wikipedia.org/wiki/Cinder_cone

    Such cinder cones likely represent the final stages of activity of a mafic volcano. [11] However, most volcanic cones formed in Hawaiian-type eruptions are spatter cones rather than cinder cones, due to the fluid nature of the lava. [12] The most famous cinder cone, Paricutin, grew out of a corn field in Mexico in 1943 from a new vent. [3]

  4. Volcanic field - Wikipedia

    en.wikipedia.org/wiki/Volcanic_field

    A volcanic field is an area of Earth's crust that is prone to localized volcanic activity. The type and number of volcanoes required to be called a "field" is not well-defined. [1] Volcanic fields usually consist of clusters of up to 100 volcanoes such as cinder cones. Lava flows may also occur.

  5. Monogenetic volcanic field - Wikipedia

    en.wikipedia.org/wiki/Monogenetic_volcanic_field

    Many monogenetic volcanoes are cinder cones, often with lava flows, such as Parícutin in the Michoacán-Guanajuato volcanic field, which erupted from 1943 to 1952. Some monogenetic volcanoes are small lava shields, such as Rangitoto Island in the Auckland volcanic field. Other monogenetic volcanoes are tuff rings or maars. A monogenetic field ...

  6. Conical hill - Wikipedia

    en.wikipedia.org/wiki/Conical_hill

    All stratovolcanoes and shield volcanoes have a tendency to form a cone at the surface. However, stratovolcanoes are able to form steeper sides whilst shield volcanoes only form very flat cones. The reason for this is that stratovolcanoes are composed largely of solid, eruptive material, whereas shield volcanoes are built up mainly by fluid ...

  7. Volcano - Wikipedia

    en.wikipedia.org/wiki/Volcano

    The erupted volcanic material (lava and tephra) that is deposited around the vent is known as a volcanic edifice, typically a volcanic cone or mountain. [ 2 ] [ 22 ] The most common perception of a volcano is of a conical mountain, spewing lava and poisonous gases from a crater at its summit; however, this describes just one of the many types ...

  8. Vulcan's Throne - Wikipedia

    en.wikipedia.org/wiki/Vulcan's_Throne

    Vulcan's Throne is a cinder cone volcano and a prominent landmark on the North Rim of the Grand Canyon in Arizona, United States. [4] The volcano is adjacent the Colorado River, (thousands of feet above the river) as it is the source material for Lava Falls and Lava Falls Rapids (Vulcan Rapids) one of the largest rapids of the Colorado.

  9. Mount Schank - Wikipedia

    en.wikipedia.org/wiki/Mount_Schank

    Mount Schank is part of the Newer Volcanics Province, [5] which is the youngest volcanic field in Australia. Mount Schank erupted about 5,000 years ago, around the same time as Mount Gambier. [6] [7] It is a basic ash cone and the base of the crater does not extend below the water table, so there is no crater lake as with those at Mount Gambier ...