No. of terms: approximately 400
Description: The Volcano Glossary by the expert and adventurer John Seach is a great place to look up terms related to volcanoes. John Seach traveled over the past 20 years to the world’s most exciting volcanoes, and witnessed eruptions during trips to more than 100 volcanoes.
The glossary is part of Seach’s website “Volcano Live”, “which monitors worldwide volcanic activity, and provides adventure tours to the world’s most exciting volcanoes. Volcano Live is the world’s only company working exclusively in volcano film and television production.”
Example term: Pyroclastic Flows/Ash Flow
Pyroclastic Flows and Nuée ardentes are the most dangerous of all the volcanic eruption styles. Pyroclastic flows are clouds of hot gas, ash, and clasts which move down hill under the action of gravity. They can move at speeds of 100 km per hour and destroy everything in their path. Mt Pelee produced a pyroclastic flow in 1902 which killed 29 000 people. Pyroclastic flows can be caused by column collapse, lava dome collapse, or boiling over of a vent like a pot of rice. Pyroclastic flows are driven by gravity and are channeled into valleys.
Distances travelled. Up to 100 km.
Speed of flows. 900 km/hr.
Temperature. 600-1100 deg C.
Pyroclastic flows are different to a Nuée ardente.
Keywords: volcano, volcanoes, eruption, volcano terms, terminology, glossary, dictionary, geography
Quote as: Volcano Glossary © John Seach. volcanolive.com. All Rights Reserved.