Stratovolcano

  • mount vesuvius, near the city of naples in italy, violently erupted in 79 ad. the last eruption of this stratovolcano occurred in march 1944.

    a stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava, tephra, pumice and ash.[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 craters called calderas. the lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. the magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. extensive felsic lava flows are uncommon, but have travelled as far as 15 km (9.3 mi).[2]

    stratovolcanoes are sometimes called "composite volcanoes" because of their composite stratified structure built up from sequential outpourings of erupted materials. they are among the most common types of volcanoes, in contrast to the less common shield volcanoes. two famous examples of stratovolcanoes are krakatoa in indonesia, known for its catastrophic eruption in 1883, and vesuvius in italy, whose catastrophic eruption in ad 79 ruined the roman cities of pompeii and herculaneum. both eruptions claimed thousands of lives. in modern times, mount saint helens and mount pinatubo have erupted catastrophically, with fewer deaths.

    the possible existence of stratovolcanoes on other terrestrial bodies of the solar system has not been conclusively demonstrated.[3] the one feasible exception is the existence of some isolated massifs on mars, for example the zephyria tholus.[4]

  • creation
  • hazards
  • effects on climate and atmosphere
  • list
  • see also
  • references

Mount Vesuvius, near the city of Naples in Italy, violently erupted in 79 AD. The last eruption of this stratovolcano occurred in March 1944.

A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava, tephra, pumice and ash.[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 craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as 15 km (9.3 mi).[2]

Stratovolcanoes are sometimes called "composite volcanoes" because of their composite stratified structure built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volcanoes. Two famous examples of stratovolcanoes are Krakatoa in Indonesia, known for its catastrophic eruption in 1883, and Vesuvius in Italy, whose catastrophic eruption in AD 79 ruined the Roman cities of Pompeii and Herculaneum. Both eruptions claimed thousands of lives. In modern times, Mount Saint Helens and Mount Pinatubo have erupted catastrophically, with fewer deaths.

The possible existence of stratovolcanoes on other terrestrial bodies of the Solar System has not been conclusively demonstrated.[3] The one feasible exception is the existence of some isolated massifs on Mars, for example the Zephyria Tholus.[4]

Other Languages
العربية: بركان طبقي
asturianu: Estratovolcán
azərbaycanca: Qarışıq vulkan
беларуская: Стратавулкан
беларуская (тарашкевіца)‎: Стратавулькан
български: Стратовулкан
català: Estratovolcà
čeština: Stratovulkán
Deutsch: Schichtvulkan
español: Estratovolcán
Esperanto: Stratovulkano
français: Stratovolcan
한국어: 성층 화산
hrvatski: Stratovulkan
Ilokano: Estratobulkan
Bahasa Indonesia: Gunung berapi kerucut
íslenska: Eldkeila
italiano: Stratovulcano
Kapampangan: Estratubulkan
Kreyòl ayisyen: Vòlkan konpozit
latviešu: Stratovulkāns
lietuvių: Stratovulkanas
македонски: Стратовулкан
მარგალური: სტრატოვულკანი
Bahasa Melayu: Stratovolkano
Nederlands: Stratovulkaan
日本語: 成層火山
norsk nynorsk: Stratovulkan
occitan: Estratovolcan
polski: Stratowulkan
português: Estratovulcão
română: Stratovulcan
русиньскый: Стратовулкан
русский: Стратовулкан
Simple English: Stratovolcano
slovenčina: Stratovulkán
slovenščina: Stratovulkan
српски / srpski: Стратовулкан
srpskohrvatski / српскохрватски: Stratovulkan
svenska: Stratovulkan
Türkçe: Stratovolkan
українська: Стратовулкан
Tiếng Việt: Núi lửa dạng tầng
吴语: 复式火山
中文: 複式火山