EARTHSC 2GG3 Lecture Notes - Lecture 10: Viscosity, Pyroclastic Flow, Subduction

• School: McMaster University
• Department: Earth Sciences
• Course: EARTHSC 2GG3
• Professor: Sergei Basik

Document Summary

Example of a volcano that lies exactly on the mid-oceanic ridge: iceland. Biggest volcano in the world (manua loa in hawaii) Mount kilauea in hawaii has been erupting every day. Called a shield volcano because the structure looks like an ancient shield. Often appear on the slopes of huge shield volcanoes. Cinder cone volcanoes on the side of shield volcanoes. Eruptions are more dangerous than shield volcanoes. Most active cinder cone right now is cerro negro. Very dangerous but rarely cause serious injury. Different characteristics from cinder and shield volcanoes. Different layers of volcanic products (volcanic composite) Most active volcano in mexico: popocatepetl volcano. Can sleep for thousands of years and then become active again. Have volcanoes in antarctica (erupt with snow, ice and fire) Can find on the crater of stravovolcanoes. Releases pyroclastic flow (most dangerous component of volcanic eruptions) Eruptions produce towering ash columns and ground-hugging avalanches of hot ash and gas (pyroclastic flows)