ERTH 2415 Lecture 11: ERTH 2415 - CLASS 11
7 Oct 2016
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Erth 2415 class 11: eruptive style and landforms ii. Follows a plinian-type eruption that opened void space below the volcano. Piston-like action of collapsing volcano cause very large volume of magma to flow outward as pumice-rich sheets. Calderas and central vents: similarities both are circular features associated with volcanoes, differences central vents are created by explosions while calderas are collapse features, cataclysmic explosion explosion blows the existing volcano apart completely (ex. Krakatoa, indonesia subduction of australian plate under eurasian plate along west coast of. Reawakening (20 may 1883) it had been quiet for ~ 200 years. Hot enough to cause burn-related fatalities 40 km away. Shielded sunlight: global temperatures dropped by 1. 2 c the following year. Anak krakatoa ( son of krakatoa) - 1927: steam above water (currently erupting almost daily) Santorini, greece akrotori: prosperous bronze age city (multi-story buildings with indoor plumbing. Cataclysmic explosion in 1626 bc subduction of african plate under eurasian plate.
