GEOE 203 Fall2023 Exam 3

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Casper College *

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203

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Jan 9, 2024

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User Xxx*xxxxxx Course GEOE 203: Earth Dynamics - 01708 - F23 (ONLINE) Test GEOE 203 Fall2023 Exam 3 Started 10/20/23 12:32 PM Submitted 10/20/23 1:02 PM Due Date 10/22/23 11:59 PM Status Completed Attempt Score 50 out of 50 points Time Elapsed 30 minutes out of 1 hour Results Displayed Submitted Answers, Feedback Question 1 1 out of 1 points Which of the following volcanic flows can be the fastest? Selected Answer: Nuee Ardentes Question 2 1 out of 1 points Which lava type has the highest viscosity? Selected Answer: rhyolitic lava Question 3 1 out of 1 points Volcanos can produce: Selected Answer: all of the above Question 4 1 out of 1 points Of the three primary forms of subaerial volcanoes, which is made of alternating layers of solidified lava and tephra? Selected Answer: stratovolcanoes Question 5 1 out of 1 points The Hawaiian island chain is an example of a(n): Selected Answer: hot-spot island chain Question 6 1 out of 1 points What are the two dominant eruptive styles of volcanoes? Selected Answer: Effusive and explosive Question 7 1 out of 1 points
After a major eruption, the sudden draining of a magma chamber produces? Selected Answer: A caldera Question 8 1 out of 1 points Mauna Loa on Hawaii is an excellent example of what type of volcano? Selected Answer: Shield volcano Question 9 1 out of 1 points Lava flow style depends on: Selected Answer: All of the above Question 10 1 out of 1 points The place inside the earth where an earthquake originates is called: Selected Answer: hypocenter Question 11 1 out of 1 points When rock is split by a fault, the part of the rock above the break (fault) is called: Selected Answer: hanging wall Question 12 1 out of 1 points When an earthquake occurs it generates 4 types of waves. Which list is in the correct order that they will arrive at a seismic station? Selected Answer: P-wave, S-wave, L-wave, R-wave Question 13 1 out of 1 points Which plate boundary type has the most earthquakes? Selected Answer: oceanic-continental convergent Question 14 1 out of 1 points Which type of fault has no vertical block motion? Selected Answer: strike-slip fault Question 15 1 out of 1 points Which type of plate boundary is the San Andreas Fault?
Selected Answer: continental-continental strike-slip Question 16 1 out of 1 points The difference between a joint and a fault is: Selected Answer: if there is movement of the rock along the break Question 17 1 out of 1 points Which of the following is a type of stress? Selected Answer: all of the above Question 18 1 out of 1 points Which type of fold has the ‘hinge’ at the bottom and the ‘limbs’ extending up to the sides? Selected Answer: syncline Question 19 1 out of 1 points Which kind of plate boundary can never cause an orogeny? Selected Answer: strike-slip boundaries (continental-continental) Question 20 1 out of 1 points The central portion of a fold, where the primary bend is located, is called Selected Answer: hinge Question 21 1 out of 1 points How many seismic stations are required to locate the epicenter of an earthquake? Selected Answer: 3 Question 22 1 out of 1 points Which of the following is a common hazard to a city when an earthquake occurs? Selected Answer: all of the above Question 23 1 out of 1 points Deformation results in which of the following? Selected Answer: All of the above Question 24
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1 out of 1 points Which of the following is a crust with low geothermal gradient that hasn’t been deformed in a billion years? Selected Answer: Craton Question 25 1 out of 1 points Which is the name for lava that is blocky, angular, and does not move as much? Selected Answer: A’a’ Question 26 5 out of 5 points Describe why earthquakes happen when the plates only move a few centimeters each year. Selected Answer: Although the tectonic plates are constantly moving slowly, friction causes them to become stuck a their edges. There is an earthquake that releases energy in wave that move through the earth's crust and causes the earth's surface to shake when the stress on the edge exceeds the friction. Response Feedback: [None Given] Question 27 5 out of 5 points List the 3 types of volcanoes, from largest to smallest, and say what type of lava/rock commonly comes out of them. Selected Answer: The 3 types of volcanoes are: from the largest to smallest: Shield volcanoes>Composite volcanoes> Cinder cones. Indeed, Shield volcanoes produce masaltic lava, Composite volcanoes produce mostly intermediate and felsic lava, plus a lot of ash and tephra, and finally Cinder cone volcanoes produce basaltic tephra. Response Feedback: mafic lava means the same as basaltic lava, but there is not masaltic lava - but since you spelled basaltic correctly in the cindercone area i am giving you full credit Question 28 5 out of 5 points Describe why you need at least 3 seismic stations to determine the location of an earthquake. Selected Answer: You need at least 3 seismic stations to determine the location of an earthquake because of the triangulate process. Indeed, the data collected can be used to determine the epicenter by where it intersects. Response Feedback: [None Given] Question 29 5 out of 5 points Tell me how the direction of the vibrations compare to the direction of wave propogation in P-waves and S-waves.
Selected Answer: In P-wave, the vibration is in the same direction of the propagation. In S-wave, the vibration is perpendicular to the direction of the propagation. This would result in the ground feeling jerky. Response Feedback: [None Given] Question 30 5 out of 5 points Tell me if the fault in this picture is left lateral or right lateral and how you can tell. Selected Answer: The fault in this picture is a right lateral fault. You can tell because the right block moves towards you and the left block moves away from you along any extreme end of the fault line. Response Feedback: [None Given] Sunday, December 31, 2023 5:26:26 PM CST