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Topography and Geology > Step One
Question: Examine the topographic image of the Valley and Ridge province of the Appalachian Mountains (below). What color represents resistant rocks? What color represents easily eroded rocks?
Question: If you've studied geology, notice that the topography is a series of parallel ridges and valleys. What kind of rocks do you think might form the bedrock here, igneous, sedimentary or metamorphic? Why?
Question: Now put your two answers together and make a guess as to the actual rock type (ex: granite, sandstone etc.) of the resistant rocks and eroded rocks.
Discovery Topics > Topography > Topography and Geology >Step One <
