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Unformatted text preview: Name__________________ Geology 111 First Hour Exam - Spring 2007 1. Put name in the upper right hand corner. 3. There are 100 total points on this exam. 4. Please read each question carefully. 5. Write all of your answers on the front or back of this exam. 6. No textbooks, notebooks, notes, or scratch paper may be used. 7. Neatness counts. (20 points) I. True or False - (circle the correct answer). 1. A lapilli is a volcanic rock fragment that floats on water. False 2. Specific gravity is the density of a mineral relative to air. False 3. Volcanic domes form from viscous volcanic eruptions. True 4. In the Earth, convection is the most efficient mechanism for heat transfer. True 5. The highest heat flow values occur in subduction zones. False 6. Two minerals with the same structure are polymorphs. False 7. Shields volcanoes form large cones with gentle slopes. True 8. Marble forms from metamorphosed limestone. True. 9. Cement is formed from limestone and clay. True 10. Blueschist is formed in contact metamorphism. False (20 points ) II. Multiple choice. (circle the correct answer). 11. When rocks begin to melt in the final stages of metamorphism: a. diagenesis occurs. b. they form migmatites. c. the rocks become hornfels. d. metasomatism occurs. 12. A Transgressive sedimentary sequence: a. generally contains abundant conglomerates and arkoses. b. develops a thick accumulation of flysch and mollasse. c. puts deep water sediments on top of shallow water sediments....
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- Spring '08