Earth Science 6.3 : Causes of Volcanic Eruptions
Earth
VOLCANISM Mount St. Helens, 1980 eruption. Where are volcanoes located?
Calc-Alkaline Magmatism Francis, 2013 PacayaAgua Acatenango.
Today…
San Francisco Volcanic Field
MAGMA is molten rock, but is not just liquid - also contains bits of rock crystals and gas. It ranges in consistency from wet concrete to thick oatmeal.
Volcanoes and volcanism
More than a trip south. Most of the world’s volcanism is associated with divergent and convergent plate boundaries. However there are sites of volcanism.
VENUS. “Twin” or “Sister” planet of the earth similar size, mass, density; interior should also be similar with iron core, mantle, crust But totally.
AIM: Where are most volcanoes found and how do hot spots form? OBJ: Given notes and activity sheet SWBAT explain where most volcanoes are found and how.
