Geog 203 Final Study Guide Rated A+

Explosive eruption {Ans: caused by blockage trapping & compressing gases, causing pressure to build}Debris avalanche {Ans: A mass of falling and tumbling rock, debris, and soil}Horn {Ans: A pyramdial peak formed when several cirque glaciers gouge an individual mountain summit from all sides}Caldera {Ans: a large, basin-shaped depression, formed when summit material on a volcanic mountain collapses inward after an eruption or other loss of magma}Hydration {Ans: "combination with water", involves little chemical change}Yazoo tributary {Ans: a small tributary stream draining alongside a floodplain; blocked from joining the main river by its natural levees and elevated stream channel}Moment Magnitude scale {Ans: Scale for measuring earthquakes, considers the amount of fault slippage produced by the earthquake, the size of the surface are that ruptured, and the nature of the materials that faulted}Tides {Ans: complex twice-daily oscillations in sea level}Erg desert/sand sea {Ans: a sandy desert, or area where sand is so extensive that it constitutes a sand sea}Alluvial terraces {Ans: level areas that appear as topographic steps above a stream, created by the stream as it scours with renewed downcutting into its floodplain}Mineral {Ans: an inorganic/nonliving natural compound having a