Geology Chapter 2.12 (printed) 0.0 / 5 ? Geologytypes of volcanoA2/A-levelOCR Created by: abbbywCreated on: 30-11-17 19:21 Volcanoes vents at the surface of the Earth where magma and other volcanic materials are ejected 1 of 8 Low viscosity where magma or lava are fluid and flow freely 2 of 8 Shield volcanoes gentle slopes of less than 10 degrees and a roughly circular shape around a central vent 3 of 8 Fissure eruptions where magma reaches the surface along long, linear cracks or fissures 4 of 8 Submarine eruptions where magma comes from a vent or fissure on the sea floor 5 of 8 Composite volcanoes tall,conical shaped and composed of alternate layers of lava and ash 6 of 8 Caldera a large volcanic crater that has undergone collapse, following an eruption 7 of 8 Effusive describes the fluid, non-explosive, basalt lava 8 of 8
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