Instructions for Side by Side Printing
- Print the notecards
- Fold each page in half along the solid vertical line
- Cut out the notecards by cutting along each horizontal dotted line
- Optional: Glue, tape or staple the ends of each notecard together
Geol. 1403/Cook quiz 10
front 1 What mass movement is most likely to occur in a geological setting where the rock strata are inclined? a) debris flow b) slump c) creep d) rockslide | back 1 rockslide |
front 2 ____ denotes the exposed, crescent shaped rupture surface at the head of a slump. a) scoop b) sole c) toe d) scarp | back 2 scarp |
front 3 Consider a weathered rock or soil particle lying on a slope. How will the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope? a) it will increase as the slope angle is lessened b) it will decrease as the slope angle is lessened c) it is not affected by the slope angle d) it will possibly increase or decrease as slope angle is lessened, depending upon other factors | back 3 it will decrease as the slope angle is lessened |
front 4 How do the strength and cohesion of clay-rich regolith or soil change with the addition of water? a) water does not affect the cohesion but lowers the strength b) water reduces the strength of clays but raises the cohesion of the soil c) water increases the strength and cohesion d) water lowers the strength and cohesion | back 4 water lowers the strength and cohesion |
front 5 ____ involves movement on a zone of compressed air. a) a slump b) a mudflow c) a rock avalanche d) soil creep | back 5 a rock avalanche |
front 6 Of the following, which one would most likely be triggered by an earthquake? a) solifluction b)soil creep c) slump d) rock avalanche | back 6 rock avalanche |
front 7 Which one of the following operates primarily in the areas of a permafrost? a) rock avalanch b) solifluction c) soil creep d) mudflow | back 7 solifluction |
front 8 Consider a steep highway cut made by removing slightly weathered to fresh, fractured, granite bedrock. Which of the following situations is most stable against rockslides? a) one set of widely spaced, sub-horizontal fracture b) two sets of fractures, one inclined toward the road cut and the other away c) two sets of fractures one widely spaced and sub-horizontal, the other inclined away from the cut d) one set of widely spaced fractures inclined towards the road cut | back 8 One set of widely space, sub-horizontal fractures |
front 9 All of the following are possible indicators that creep is occuring except for ____ a)tilted fences or power-line poles b) an extremely thick soil profile c) curved tree trunks d) cracks in road or sidewalks | back 9 an extremely thick soil profile |
front 10 How do freezing, thawing, wetting, and drying contribute to soil creep? a) the soil becomes much weaker when dry and frozen b) gravity exerts a much stronger force when the soil is wet and thawed c) the soil expands and contracts, lifting particles and dropping them a slight distance downslope d) eventually, these cause the soil and regolith to suddenly slide down the slope | back 10 the soil expands and contracts, lifting particles and dropping them a slight distance downslope |
front 11 Why was the Alaskan pipeline built above ground and insulated? a) to protect the pipeline against damage due to thawing ground and to keep the crude oil hot and fluid b) to keep the oil cool and highl fluid c) to protect against damage from herds of elk and deer d) to protect against damage from roots of large trees uprooted in windstorms | back 11 to protect the pipeline against damage due to thawing ground and to keep the crude oil hot and fluid |
front 12 A geologist wants to locate a horizontal coal bed on a soil-covered slope where soil creep is active. A distinctive sandstone bed underlies the coal bed. On the basis of weathered sandstone fragments in the soil, where is the coal bed? a) just below the lowest piece of sandstone seen in the soil b) just above the highest piece of sandstone seen in the soil c) just below the highest piece of sandstone seen in the soil d) just aboce the lowest piece of sandstone seen in the soil | back 12 just above the highest piece of sandstone seen in the soil |
front 13 Which of the following statements concerning mudflow is not true? a) mudflow may be caused by heavy rains or melting snow b) in hilly areas, mudflows move down the canyons and stream valleys c) mudflows deposit talus slopes d) mudflows can move and carry very large boulders and other coarse debris | back 13 mudflows deposit talus slopes |
front 14 Which statement best describes slumping, a mass wasting process? a) a block or blocks of unconsolidated regolith slide downhill along a curved slip surface b) blocks of hard bedrock slide downhill along fracture surfaces c) the soil and regolith move downhill very slowly d) a mass of soil or regolith becomes saturated with water and suddenly flows downhill to the base of the slope | back 14 a block or blocks of unconsolidated regolith slide downhill along a curved slip surface |
front 15 Which mass wasting process has the slowest rate of movement? a) slump b) rock avalanche c) solifluction d) creep | back 15 creep |
front 16 All of the following are factors affecting mass wasting except for ____. a) gravity b) water c) slope angle d) geological age | back 16 geological age |
front 17 The most rapid type of mass movement is a ____. a) slump b) lahar c) rock avalanche d) debris flow | back 17 rock avalanche |
front 18 As an erosional process, how is mass wasting unique from wind, water, and ice? a) mass wasting affects particles of all sizes whereas the others only smaller particles b) mass wasting does not require a transporting medium c) mass wasting affects much larger geographic areas than does wind, water, and ice d) all of the above make mass wasting unique compared to wind, water, and ice. | back 18 mass wasting does not require a transporting medium |
front 19 T/F Slump describes the very slow, downhill movement of soil and regolith. | back 19 false |
front 20 T/F The steepest, stable, slope angle possible in unconsolidated , granular materials like sand and gravel is called the angle of retention. | back 20 false |
front 21 T/F Solifluction occurs during the warmer summer months. | back 21 true |
front 22 T/F Bedding planes and fractures can both act as slip surfaces for rockslides. | back 22 true |
front 23 T/F Repeated freezing and thawing can be important in soil creep movements. | back 23 true |
front 24 T/F Lahars are essntially mudflows associated with volcaones and volcanism. | back 24 true |
front 25 Solifluction is an important mass wasting process in areas of permafrost. | back 25 true |
front 26 T/F A triggering mechanism, such as heavy rains or an earthquake, are necessary for mass wasting to occur. | back 26 false |
front 27 T/F A scarp is the exposed portion of the rupture surface beneath a slump block. | back 27 true |
front 28 T/F Earthflows and slumps generally involve movement of unconsolidated or weakly consolidated soil and regolith. | back 28 true |
front 29  What form of mass wasting is illustration #29? a) debris flow b) creep c) earthflow d) rockslide e) slump | back 29 slump |
front 30 What form of mass wasting is illustration #30? a) debris flow b) creep c) earthflow d) rockslide e) slump | back 30 rockslide |
front 31 What form of mass wasting is illustration #31? a) debris flow b) creep c) earthflow d) rockslide e) slump | back 31 debris flow |
front 32 What form of mass wasting is illustration #32? a) debris flow b) creep c) earthflow d) rockslide e) slump | back 32 earthflow |
front 33 What form of mass wasting is illustration #33? a) debris flow b) creep c) earthflow d) rockslide e) slump | back 33 creep |