Search results
Results from the WOW.Com Content Network
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. [1] Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit ...
Mount Vesuvius (/ vɪˈsuːviəs / viss-OO-vee-əs) [ a ] is a somma – stratovolcano located on the Gulf of Naples in Campania, Italy, about 9 km (5.6 mi) east of Naples and a short distance from the shore. It is one of several volcanoes forming the Campanian volcanic arc.
Mayon Volcano in Albay, The most active volcano in the Philippines, famous for its perfect symmetrical cone shape. Mount Pinatubo in Zambales. The catastrophic June 1991 eruption, which formed a caldera, later filled by a crater lake, had global environmental effects. Mount Bulusan in Sorsogon; Mount Kanlaon and Mount Talinis in Negros; Mount ...
Mount St. Helens (known as Lawetlat'la to the indigenous Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, [ 1 ] in the Pacific Northwest region of the United States. It lies 52 miles (83 km) northeast of Portland, Oregon, [ 2 ] and 98 miles (158 km) south of ...
Popocatépetl (UK: / ˌ p ɒ p ə ˈ k æ t ə p ɛ t əl, ˌ p ɒ p ə k æ t ə ˈ p ɛ t əl / POP-ə-KAT-ə-pet-əl, -kat-ə-PET-əl, US: / ˌ p oʊ p-/ POHP-, Spanish: [popokaˈtepetl] ⓘ; Nahuatl languages: Popōcatepētl [popoːkaˈtepeːt͡ɬ] ⓘ) is an active stratovolcano located in the states of Puebla, Morelos, and Mexico in central Mexico.
Mount Cleveland is an almost symmetrical andesite stratovolcano in the Islands of Four Mountains, a volcanic group in the Aleutian Arc. [4] Like all stratovolcanoes, Mount Cleveland grew as explosive eruptions, effusive eruptions, and lahars built it layer by layer into a convex shape. [12] It lies southeast of Mount Carlisle and northeast of ...
Mayon is a classic stratovolcano with a small central summit crater. It is one of the world's most symmetrical volcanic cones. [11] The concave profile, a hyperbolic sine curve of the volcano is due to the balance between erosion and eruption, defined by the angle of repose of ash.
Types of volcanic eruptions. Some of the eruptive structures formed during volcanic activity (counterclockwise): a Plinian eruption column, Hawaiian pahoehoe flows, and a lava arc from a Strombolian eruption. Several types of volcanic eruptions —during which material is expelled from a volcanic vent or fissure —have been distinguished by ...