Midterm2

Midterm2 - Name_ Geology 1001 Section 1 Exam # 2 Copy A 1....

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Name________________________ Geology 1001 Section 1 Exam # 2 Copy A 1. Which of the following statements best describes continental crust (not lithosphere)? a) Continental crust is thicker and less dense than oceanic crust b) Continental crust is thinner and equal in density to oceanic crust c) Oceanic crust is thicker and more dense than continental crust d) Continental crust and Oceanic crust are equal in both thickness and density 2. Which of the following rocks represent the most correct arrangement of typical earth materials from the surface of the earth toward its core. a) Peridotite-basalt-liquid Fe-Ni b) Granite-peridotite-liquid Fe-Ni c) Granite-basalt- liquid Fe-Ni d) Peridotite-Granite-Basalt-Peridotite-Fe-Ni 3. Walther’s law states: The vertical succession of preserved sedimentary rocks at depth can be explained through the lateral (horizontal) movement of different depositional sedimentary environments. In order for this law to make complete intuitive sense, which of the following processes must be occurring? a) Rapid subsidence and no deposition b) Complete erosion of all sedimentary environments c) Rapid Uplift with complete sediment bypass d) None of the above 4. When trying to determine whether or not a planet is dead or alive a good place to look is whether or not the planet has _________ a) High and low spots of topography b) No topography c) A black hole nearby d) Two suns supplying light to the planet 5. Large-scale topographic features such as mountains and ocean basins are explained through the theory of ________. a) Volcanics b) Plate Tectonics c) The gravitational pull of the Sun on the Earth d) None of the above
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Questions 6-7 can be answered using Figure 1 below Figure 1 6. In which of the following depositional environments would you expect to find a sediment containing quartz grains that are rounded and very well sorted? a) Beach b) Reef c) Deep-marine environment d) Alluvial Fan 7. In which of the following depositional environments would you expect to find evaporitic deposits such as gypsum and anhydrite? a) Shelf-platform b) River c) Arid, restricted tidal flat d) Delta
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8. The main force driving plate tectonics during the very early stages of Earth’s history was most likely_________. a) Mantle Convection b) Slab push and pull c) Atmospheric circulation d) All of the above 9. Ninety percent of the whole Earth is made up of which four elements? a) Oxygen, nitrogen, hydrogen, and silicon b) Iron, oxygen, silicon, and magnesium c) Silicon, calcium, aluminum, and iron d) Magnesium, aluminum, silicon, and oxygen 10. Which of the following statements best describes the relationship between surface area of the crust and volume of the continental and oceanic crust? a)
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This note was uploaded on 07/07/2009 for the course GEOL 1001 taught by Professor Baksi during the Spring '07 term at LSU.

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Midterm2 - Name_ Geology 1001 Section 1 Exam # 2 Copy A 1....

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