Geology 200, Questions for Test 3, December 13

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A depositional feature formed from coalescing alluvial fans along the base of a mountain range is: A. a peneplain B. a pediment C. a playa D. a bajada E. a monadnock Which of the following features is not formed on a domal uplift? A. cuestas B. faceted spurs C. strike valleys D. hogbacks Which of the following is not a landform associated with the evolution of horizontal strata in an arid region? A. butte B. mesa C. strike valley D. cliffs and slopes Rates of erosion: A. are usually much greater than rates of uplift on the continents B. increase during periods of rapid tectonic uplift C. increase in the late stages of erosion of a mountain belt D. are independent of the amount of uplift Dendritic drainage patterns, broad domes, and basins are characteristic of a continent’s: A. stable platforms B. shields C. folded mountain belts D. magmatic arcs Karst topography forms in what type of climate? A. humid B. desert C. polar D. all of the above The continental shields consist mostly of: A. metamorphic and igneous rocks B. remnants of ancient oceanic crust C. Phanerozoic sedimentary rocks D. Precambrian sandstones The formation of the Basin and Range is believed to be the result of: A. motion caused by plate rotation B. compression forces caused by plate collision C. extensional forces and rifting D. fractures caused by igneous intrusion The coastal plains of the United States usually have the following landforms: A. cuestas and strike valleys B. buttes and mesas C. inverted valleys D. lowlands and mesas Matching: Use each answer only once. Differential erosion ____ A. mesas and buttes capped by old lava flows Dendritic drainage ____ B. erosional remnant of resistant flat strata Hogback ____ C. erosional remnant of tilted strata Inverted valley ____ D. develops on stable platform Mesa ____ E. produces ridges and valleys 4
Continental shields are presently being subjected to mountain building processes. A. True B. False Describe the difference between stress and strain. Based on the diagram below, describe the origin of the Sideling Hill Syncline on I-68 in Maryland. Make a sketch showing the difference between a monocline and an anticline. Draw the geologic map symbols for each of the following: Strike and dip of beds Horizontal beds Vertical beds Overturned beds Contact between two geologic formations Plunging anticline Plunging syncline Normal or gravity fault Strike-Slip fault Thrust fault Be able to draw a strike-slip fault showing right-lateral displacement. Left-lateral displacement. Faults are the result of _________________________ deformation. Folds are the result of _________________________ deformation. 5
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Geology 200, Questions for Test 3, December 13

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