Stratigraphy

1234567891011121314151617181920212223242526272829303132333435363738394041424344
Across
  1. 1. [rock strata G ]
  2. 4. (see figure 2)
  3. 5. [rock strata J ]
  4. 6. the thick foundation of ancient, and oldest, metamorphic and igneous rock that forms the crust of continents, often in the form of granite
  5. 8. a layer of fine, mineral-rich material mostly created by wind, but can also be formed by glaciers [rock strata A]
  6. 12. [rock strata I ]
  7. 13. Never covered by ice during the last ice age, the area lacks the characteristic glacial deposits known as drift.
  8. 14. a type of broad, rounded cliff. Most bluffs border a river
  9. 15. ancient fossil group about 300 million years before dinosaurs
  10. 17. rocks composed of broken pieces of older rocks
  11. 21. zone separation in the earth’s crust
  12. 22. the path (see figure 3)
  13. 24. sediments, soil and rocks are added to a landform
  14. 26. A dome is a feature in structural geology consisting of symmetrical anticlines that intersect each other at their respective apices. Intact, domes are distinct, rounded, spherical-to-ellipsoidal-shaped protrusions on the Earth's surface.
  15. 29. [rock strata E ]
  16. 32. battlements of a tower in a castle
  17. 33. [rock strata H ]
  18. 34. agents of this effect include: Water, ice, acids, salts, plants, animals, and changes in temperature
  19. 35. (see figure 4)
  20. 38. layer of rock or sediment
  21. 39. a bend in strata due to pressure or compression
  22. 41. variation in elevation and slope
  23. 42. formed by erosion and collapsed caves - arches, “toward the rainbows” commonly found as you venture into the Missouri lands
  24. 43. [rock strata D ]
  25. 44. egg stone
Down
  1. 2. rocks or sediment consisting of or containing clay
  2. 3. calcium magnesium carbonate & aragonite mineralized sedimentary rock
  3. 6. The oldest fossils that come from Cambrian rocks over 500 million years old
  4. 7. theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes
  5. 9. cryptocrystalline quartz [rock strata B]
  6. 10. a break in a sedimentary sequence which does not involve a difference of inclination between the strata on each side of the break
  7. 11. internally mineralized vaguely spherical rocks
  8. 14. hard, solid rock beneath surface materials such as soil and gravel
  9. 16. a fracture in the Earth’s crust
  10. 18. a type of landscape where the dissolving of the bedrock has created sinkholes, sinking streams, caves, springs, and other characteristic features
  11. 19. state rock of Missouri
  12. 20. Calcium Carbonate rock – mainly Lime
  13. 23. skeletal remains of organisms in rock
  14. 25. [rock strata F ]
  15. 27. An elongated lowland between ranges of mountains, hills, or other uplands, often having a river or stream running along the bottom
  16. 28. [rock strata C ]
  17. 30. a persistent body of dense ice
  18. 31. a toponym adaptation “aux Arcs”
  19. 33. [rock strata K ]
  20. 36. a “missing” layer area – buried erosional (non-depositional) are separating two strata of different ages
  21. 37. aka North American Craton
  22. 40. a bend in rock strata that are otherwise uniformly dipping or horizontal