GLG 112 1st Edition Lecture 27Outline of Last Lecture IV. Volcanic DomesA. AppearanceB. FormationC. LocationsD. ExamplesV. CalderasA. AppearanceB. FormationOutline of Current LectureC. LocationsD. ExamplesHazardsI. Lava FlowsA. What is it?B. Associated volcanoesCurrent LectureCalderas are located on continents, specifically subduction zones and hot spots. Typically the ones on hot spots are bigger and more explosive than the ones on subduction zones.There are two examples you should know for this class. The first is Crater Lake. It is on a subduction zone and was formed from Mt. Mazama. The second example is Yellowstone, which is on a hot spot.HazardsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.1. Lava Flows are flowing molten rock. This hazard is effusive which means it has a low volatile content. Basalt travels faster and farther than rhyolite does because the viscosityis lower. Andesite and Rhyolite do not travel very far. -basalt lava flows are associated with shield volcanoes and cinder cones. Andesite lava flows are associated with composite cones. Dacite (between andesite and rhyolite) lava flows are associated with volcanic
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