GEO 110 Lecture Notes - Lecture 3: Mount Vesuvius, Volcano, Magma Chamber
5 Aug 2016
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4 signs of volcanic eruptions: activities detected, not eminent, activities intensifies so eruption probable, eruption can occur within 3 weeks, have 48 hours till eruption. Sulphur dioxide (so2) levels increase; use a correlation spectrum in that. More than 50% of the farm animals were killed. 15 miles radius the volcano had to be evacuated. One to four metres of ash covered the landscape and in btw 5-8 cubic km of ash deposit. Volcanoes are openings or vents, with or without a conical hill or mountain near them. Plutonic or intrusive rocks igneous, they are domain for many years. They are conduit, fiscous through ash material flow through the surface lava. When they become restless, they show signs of activities that hiss or roar. Characterized by violent vibrations within the mountain, followed by the explosions and release of gases and lava (have columns of ash clouds, pyro (fire) cumulus clouds) creates a cloud of its own, identified by its own microclimate.
