Chapter 12 Smartworks Activity Earth Science

1. Decide whether the following would result in uplift or subsidence. Sort each into the appropriate category. a. Uplift: thrust fault, removing an ice sheet b. Subsidence: erosion, normal fault, removal of groundwater 2. Rank the following reservoirs by the amount of time that water tends to reside in them. a. (Longest to shortest) glaciers, oceans, lakes, rivers, the atmosphere 3. Identify the processes that will complete the sentence below so that it describes one pathway water could follow through the hydrologic cycle. a. Water evaporates from the ocean, rises, cools, and condenses into clouds in the atmosphere. The clouds are then blown by the wind over land where water rains on the land surface. The water then infiltrates into the subsurface reservoir to become groundwater. 4. Identify the following types of mass movements by matching them with their appropriate labels. a. (left to right) solifluction or creep, slump, lahar, debris flow, rockfall 5. The following images show the three main types of submarine mass movements. Match the images with the correct process. a. (top to bottom) Debris flow, turbidity current, submarine slump 6. Different types of surfaces can serve as failure planes, allowing mass movement of overlying material. Identify the following possible failure surfaces by matching them with their descriptions. a. (left to right) foliation plane in metamorphic rock, exfoliation joint in granite, bedding plane in sedimentary rock 7. A variety of remedial steps can stabilize unstable ground. Identify the following stabilization techniques. a. (left top, left bottom, right top, right bottom) channel relocation, revegetation, riprap, terracing 8. Unstable slopes move in a variety of ways, depending on the nature of the material and the setting. Here is a small-scale slump that developed in lake-bottom sediments that were exposed by low water levels. After reading the textbook section describing slumping, identify the features of this slump by dragging the labels to the appropriate target. Note that one target will be empty because there are only four labels. a. 9. Sort the following processes that change landscapes according to the source that supplies them with energy. a. Internal Energy: plate tectonics, earthquakes, uplift, subsidence b. External Energy: glacier formation, weathering, erosion 10. Sort the features below as being part of depositional or erosional landscapes. a. 11. Rank the following reservoirs in order of the amount of freshwater they store in the hydrologic cycle. a. (greatest to least) polar ice capes, snow packs, and glaciers; oceans, rivers, and lakes; the atmosphere, including clouds, ice crystals, and water vapor 12. Sort qualities of a slump scarp and toe. a. Slump Toe: depositional feature, can break apart like small thrust 13. faults b. Slump Scarp: exposes the failure surface, can break apart like small normal faults Label the features of a slump. a. 14. Drag and drop the labels to the appropriate target to indicate the features associated with a slump. a.