Stratigraphy

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