Periglacial Environments

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Across
  1. 2. The types of permafrost found in Canada, Siberia and Antarctica
  2. 5. Discontinuous permafrost occurs north of the - __ degree Celcius isotherm
  3. 6. The slow downhill movement of the active layer by direct vertical expansion followed by melting at a downslope angle
  4. 8. The type of permafrost which occurs under the Beaufort Sea
  5. 9. Continuous permafrost occurs north of the - __ degree Celcius isotherm
  6. 10. A feature of thermokarst topography where Channels connect many small lakes
  7. 12. When the active layer detaches from the permafrost table and slides downhill
  8. 15. type of ground ice which grows yearly in a wedge shape
  9. 16. The type of permafrost which occurs south ofthe treeline and has many breaks in it
  10. 17. The process which creates blockfields (felsenmeer)
  11. 18. The uppermost part of the permafrost which freezes & thaws seasonally
  12. 19. Earth materials which have been cryotic for more than a year
  13. 20. Elevated pipes used to hold utility lines so that they don't melt the permafrost
  14. 22. The type of permafrost distribution where it only occurs in small patches surrounded by unfrozen ground
  15. 24. type of ground ice which grows by capillary action and causes frost heaving
  16. 28. An unfrozen zone within permafrost
  17. 29. A type of forest which occurs as a result of thermokarst
  18. 30. The Arctic version of a landslide which is often retrogressive and caused when slopes are undercut by water
Down
  1. 1. A large ice-core hill which last 2 or more winters
  2. 2. The top of the frozen layer of permafrost
  3. 3. The slow slipe of water-saturated soil downslope
  4. 4. Type of soil which acts to insulate permafrost from energy gain in the summer
  5. 7. Wind carved stones which look cool
  6. 11. An example would be stone stripes or sorted circles
  7. 13. Bodies of frozen rocks held together by a matrix of ice. It moves as one mass.
  8. 14. A type of topography resulting from the melting of ground ice
  9. 19. A smaller ice-core mound caused by heaving
  10. 21. Permafrost which is decreasing in ice content
  11. 23. The type of permafrost found in the Andes
  12. 24. A type of patterned ground where bogs occur close tegther in a sort of line
  13. 25. Permafrost which is increasing in ice content
  14. 26. The type of permafrost which >80% of the ground is frozen with no major breaks
  15. 27. A type of ground ice which just occurs within soil pores