GEOG 1113: Landforms Spring 2010 I. Identify the following terms: 1. Glacier 2. Firn 3. Zone of accumulation 4. Zone of ablation 5. Equilibrium line 6. Basal slip 7. Crevasses 8. Ice cap 9. Ice field 10. Tidewater glacier 11. Piedmont glacier 12. Valley glacier 13. Continental glacier 14. Glacial erratic 15. Glacial abrasion 16. Cirque 17. Glacial trough 18. Glacial drift 19. Glacial till 20. Moraine 21. Kettle lake 22. Pleistocene Epoch 23. Interglacial period 24. Glacial period 25. Milankovitch Theory 26. Isostatic adjustment 27. Periglacial processes 28. Permafrost 29. Talik 30. Ice wedge 31. Pingo 32. Patterned ground 33. Arroyo 34. Butte 35. Plateau 36. Mesa Exam 3 Study Guide 37. Pinnacle 38. Playa 39. Eolian 40. Desert pavement 41. Deflation hollow 42. Ventifacts 43. Dust Bowl 44. Sand sea 45. Desertification 46. Black blizzards 47. Loess 48. African Sahel 49. windbreak 50. Ocean 51. Sea 52. Gulf 53. Bay 54. Salinity 55. Brine 56. Brackish 57. Eustatic change 58. Ria 59. Fjord 60. Tides 61. Waves 62. Surf 63. Tsunami 64. Longshore current 65. Progradation 66. Beach 67. Barrier island II. Short Answer: 1. In the Glacial Mass Budget, what is glacial input and what is glacial output? 2. Briefly explain how glaciers are formed. 3. How do glaciers move? 4. Why does the Pacific Northwest having glaciers that are growing? 5. Name and describe the 2 types of glacial drift. 6. Why is Minnesota the Land of 10,000 Lakes? What kinds of lakes are these? 7. What were the 2 ice sheets that covered North America during the Pleistocene Glaciations? 8. How are oxygen isotopes used to reconstruct glacial history? 9. Name and describe the significance of the 5 possible causes of glaciations. 10. Explain the seasonal changes in the active layer. 11. What are the 3 factors (or where are the 3 areas) influencing arid climates? 12. Why are flash floods common in arid regions? 13. How are playas formed? 14. Name and describe the 2 types of wind erosion. 15. Explain 2 ways that Saharan dust storms impact North America. 16. What are the 3 most important factors influencing dune shape? 17. Explain the importance of loess 18. Explain how Humans can cause desertification 19. Name the world’s 5 oceans 20. Why is it a bad idea to build permanent structures on barrier islands? 21. Explain why the Earth has tides. III. Diagrams: 1. Illustrate a glacial mass budget. Include the following in your illustration: zone of accumulation, zone of ablation, equilibrium line, evaporation, sublimation, meltwater, crevasse. 2. Illustrate glacial depositional landforms. Include the following in you illustration: terminal moraine, recessional moraine, lateral moraine, medial moraine, glacier. 3. Illustrate a depositional coastline. Include the following terms in your illustration:, barrier island, lagoon, bay, spit, baymouth bar 4. Illustrate a beach cross section. Include the following terms in your illustration: dunes, foredunes, offshore bar, backshore, foreshore, offshore, hide-tide line, low-tide line