IAS Gyan

Daily News Analysis

MOUNT VESUVIUS

18th October, 2023 Geography

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Context

  • When Mount Vesuvius erupted in Herculaneum in AD79, it buried the Roman town in ash and pumice and destroyed hundreds of antique scrolls in the library.
  • The scrolls are riches for historians, who may soon be able to understand them thanks to artificial intelligence.

About

  • It is an active volcano in southern Italy that rises above the Bay of Naples on the Campania plain.
  • It is the only active volcano on the European continent.
  • Because its eruptions often include explosive eruptions as well as pyroclastic flows, the volcano is classed as a complex stratovolcano.
  • A pyroclastic flow is a dense mixture of hot lava, pumice, ash, and volcanic gas.
  • It is well known for destroying the Roman cities of Pompeii and Herculaneum in 79 AD.
  • It is part of the Campanian volcanic arc, which is a chain of volcanoes formed by the convergence of the African and Eurasian plates.
  • This subduction zone runs the length of the Italian peninsula and is the origin of volcanoes such as Mount Etna, the Phlegraean Fields (Campi Flegrei), Vulcano, and Stromboli.
  • The lower section of the subducting slab has torn and divorced from the top part under Vesuvius, forming a "slab window."
  • As a result, the rocks erupting from Vesuvius are slightly different chemically from the rocks erupting from the other Campanian volcanoes.

PRACTICE QUESTION

With reference to Mount Vesuvius, consider the following statements:

  1. It is a living stratovolcano in Italy.
  2. It is located inside the Campanian volcanic arc.
  3. It is formed by the convergence of the African and Eurasian plates.