GLY_1001_exam3_solution-1 - GLY 1001 Exam 3 Solution...

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GLY 1001 Exam 3 Solution 11/12/2006 Multiple Choice 1. The ____________ is an example of an active, continent-continent collision? a. Arabian Peninsula slamming into North Africa under the Red Sea b. westward movement of the South American plate over the Nazca plate c. northern movement of Baja California and a sliver of western California toward the Hawaiian Islands d. northward movement of India into Eurasia answer: d 2. Linear, magnetic patterns associated with mid-ocean ridges are configured as ____________. a. concentric circles about a rising plume of hot, mantle rocks and magma b. reversed magnetizations along the rift valleys and normal magnetizations along the ridge c. normal and reversed magnetized strips roughly parallel to the ridge d. normal and reversed magnetized strips roughly perpendicular to the ridge axis answer: c 3. Which of the following energy sources is thought to drive the lateral motions of Earth’s lithospheric plates? a. gravitational attractive forces of the Sun and Moon b. electrical and magnetic fields localized in the inner core c. export of heat from deep in the mantle to the top of the asthenosphere d. swirling movements of the molten iron particles in the outer core answer: c 4. The continental drift hypothesis was rejected primarily because Alfred Wegener could not __________. a. find geologic similarities on different continents b. disprove competing theories that were more accepted by scientists c. identify a mechanism capable of moving continents d. all of the above answer: c 5. Which of the following statements apply to the asthenosphere, but not the lithosphere? a. zone in the upper mantle that deforms by plastic flowage b. cool, rigid layer of crust and upper mantle that forms the tectonic plates c. deforms mainly by brittle fracturing and faulting d. partial melting of rising granitic plumes produces huge volumes of basaltic magma answer: d 6. Deep ocean trenches are surficial evidence for ____________. a. rifting beneath a continental plate and the beginning of continental drift b. sinking of oceanic lithosphere into the mantle at a subduction zone c. rising of hot asthenosphere from deep in the mantle d. transform faulting between an oceanic plate and a continental plate
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answer: b 7. The elastic rebound theory for the origin of earthquakes was first proposed by ____________ following the ____________ earthquake. a. Reid; 1906, San Francisco b. Giuseppe; 1925, Pizza Lake c. Richter; 1989, Loma Prieta d. Mohorovicic; 1964, Anchorage answer: a 8. When an earthquake occurs, energy radiates in all directions from its source. The source is also referred to as the __________.
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This note was uploaded on 10/26/2009 for the course GLY 123 taught by Professor Vogl during the Spring '09 term at University of Florida.

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GLY_1001_exam3_solution-1 - GLY 1001 Exam 3 Solution...

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