GEOL 1001 Chapter : GEOL1001 Chap 6
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Geol1001: what-to-know list (derived from before you leave this page lists in. Craters have a vent where magma erupts: hills and mountains can erupt lava or ash. Describe why every hill composed of volcanic rocks is not a volcano. If a hill doesn"t meet the characteristics of a volcano listed above then it probably isn"t a volcano. If it"s not over a vent, it"s not a volcano. Sketch and describe the four main types of volcanoes that construct hills and mountains. Scoria(cinder) cone, shield volcano, composite volcano, and volcanic dome. * note: this will be one of the concept sketches for the next exam. Describe the relative sizes of different types of volcanoes. The different shapes of volcanoes reflect differences in the style of eruption. Describe four ways that magma erupts: lava flow, dome, lava fountain, eruption column. Explain how gas behaves at different depths in a magma and how it influences eruptive style.
