Sedimentary

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Sedimentary

  1. 1. Sedimentary rocks originate from:
  2. 2. water
  3. 3. Sedimentary rock forms layer a thin ____________ on top of existing rock.
  4. 4. SEDIMENTARY ROCK LAYERS: AZ
  5. 5. 1.CLASTIC Sediments cemented together
  6. 6. 2.BIOCLASTIC Remains of plants & animals
  7. 7. 3.CRYSTALLINE newly reformed mineral crystals
  8. 8. 1. CLASTIC Sedimentary Rock: Contain layers of particles (sediments) ______________ formed from the breakdown of other rocks ( weathering) ________
  9. 9. Characteristics of clastic sedimentary fragmental rock: (__________) A. Varied particle size B. Horizontal layers C. Formed in water
  10. 10. CONGLOMERATE MIXED PARTICLE SIZE
  11. 11. SEDIMENTARY LAYERS
  12. 12. Sedimentary rock is UNLIKE loose sediment because sediments have been
  13. 13. compressed ______________ and cemented ______________ together.
  14. 14. How do Sedimentary Rocks Form?
  15. 15. ___
  16. 16. Three examples of natural cement are: lime & silica & calcite
  17. 17. Classification of sedimentary rock is based on: Texture or Grain size
  18. 18. 2. BIOCLASTIC Sedimentary Rocks are formed by the accumulation of plant _________ or animal _________ remains
  19. 19. *Limestone is the Accumulation of Shells and animal skeletons (calcite)
  20. 20. BECOME BURIED COMPRESSED
  21. 21. GREAT BARRIER REEF MAY SOMEDAY BE LIMESTONE
  22. 22. CORAL REEF
  23. 23. *Coal is the remains of BECOME Coal Plants that BURIED accumulate in & layers and COMPRESSED FOR MILLIONS OF YEARS!!!!!!
  24. 24. THIN COAL LAYERS CLASTIC BIO-CLASTIC
  25. 25. 3. Crystalline sedimentary rocks are formed from minerals that WERE dissolved _______________ in water.
  26. 26. Minerals that were once dissolved are called: evaporites and precipitates
  27. 27. crystalline sedimentary rocks are made of only one mineral
  28. 28. and are called monomineralic
  29. 29. Examples include:
  30. 30. HALITE (SALT)
  31. 31. DOLOSTONE
  32. 32. CHALK CLIFFS: ENGLAND
  33. 33. CHALK
  34. 34. A fossil is evidence a rock is sedimentary _____________
  35. 35. Sedimentary Rock layers Near Albany New York
  36. 36. Fossil Collectors In action
  37. 37. Marine fossils in the limestone
  38. 38. A Waterfall weathering The rock
  39. 39. ru Running water at work again
  40. 40. Looking over a waterfall
  41. 41. Weathered layers of sedimentary rock
  42. 42. Roadcut …perfect place to Find fossils
  43. 43. Devonian fossils of marine life
  44. 44. Devonian Rooster coral
  45. 45. Fossil are rare in igneous and metamorphic rocks
  46. 46. USE YOUR REFERENCE TABELS TO ANSWER QUESTIONS 1-11
  47. 47. SEDIMENTARY ROCKS Clastic Bioclastic Crystalline
  48. 48. Rock Candy 1 Glass jar or drinking glass 1 Food coloring (optional) 1 Piece of cotton string 1 c Water 1 Pencil or stick 2 c Sugar 1 Paper clip Additional sugar Tie a short piece of cotton string to the middle of the pencil or stick. Attach a paper clip to the end of the string for a weight. Moisten the string very lightly, and roll in a bit of sugar (this will "attract" the sugar crystals from the syrup to the string). Place the pencil or stick over the top of the glass or jar with the string hanging down inside. Heat the water to boiling, and dissolve the 2 cups of sugar into it. For the biggest crystals FAST, heat the sugar-water solution a SECOND time, and dissolve as much additional sugar as you can into it. Add a few drops of food coloring to the solution if desired. Pour the solution into the prepared glass or jar and leave undisturbed for a couple of days. Depending on how much sugar you were able to dissolve into the water, you should start to see crystals growing in a few hours to a few days. Just Recipes: http://www.melborponsti.com/index.htm
  49. 49. Rocks, Minerals, & Resources
  50. 50. Rock and Mineral resources are Non-renewable
  51. 51. Conservation And Recycling are essential….
  52. 52. Re-duce Re-use Re-cycle
  53. 53. 1. The Lithosphere: Composed of ROCKS
  54. 54. 2. Rocks:of Composed MINERALS
  55. 55. 3. Minerals: Composed of ELEMENTS
  56. 56. Most Abundant Elements: Oxygen O Silicon Si
  57. 57. Minerals Containing these elements (oxygen & silicon) are known as: Silicates
  58. 58. MINERALS NONSILICATE MINERALS NATIVE ELEMENTS Elements are generally solitary (homogeneous). Do not combine with other elements in nature. Gold Gold (Au) Silver (Ag) Platinum (Pt) Diamond (C) Graphite (C) Sulfur (S) Copper Copper (Cu) Silver
  59. 59. MINERALS NONSILICATE MINERALS CARBONATES Bonds generally weak. Minerals are soft (3-4). CALCITE Minerals are soluble in acidic water. Leads to cave development. Calcite (CaCO3) Dolomite (CaMg(CO3)2) DOLOMITE
  60. 60. Minera ls: Naturally occurring inorganic solids definite: chemical composition, molecular structure & physical properties
  61. 61. The most common rock-formers: Listed on the reference tables see back page
  62. 62. MINERAL CHARACTERI STICS
  63. 63. Luster: Light Appearance of________ reflected from a minerals surface ® metallic ® non-metallic ® glassy, waxy, greasy, pearly,earthy, dull
  64. 64. Metallic
  65. 65. Non- Metallic glassy, waxy, greasy, pearly,earthy, dull
  66. 66. Hardness: Resistance to being ®SCRATCHED _________
  67. 67. Moh’s Scale of Hardness The scale is from 1-10 diamond is the hardest mineral
  68. 68. Hardness is due to the internal arrangement of the molecules or the Atoms
  69. 69. This mineral will be soft due to the loose arrangement of the molecules
  70. 70. This mineral will be hard due to the tight arrangement of the molecules
  71. 71. We will compare a minerals hardness to glass
  72. 72. If it scratches the glass It must be as hard or harder
  73. 73. Cleavage: Some minerals tend to break along one or more smooth surfaces
  74. 74. Cleavage is also due to : the internal arrangement of the molecules
  75. 75. ook at the patte patt It can tell you how the mineral might break
  76. 76. Fracture: When a mineral has no well-defined cleavage plane uneven Breaks in _______ jagged surfaces
  77. 77. Color: May be used to identify some ___________ minerals many minerals have the same ___________color some minerals come in many ___________ colors
  78. 78. Pigments:
  79. 79. Streak: Color of the powder ______ of a mineral when crushed or scratched across
  80. 80. Crystal: The appearance that results from the internal atomic arrangement _______________
  81. 81. HALITE (NaCl) FLUORITE (CaF2)
  82. 82. Common minerals And their uses:
  83. 83. Specific Gravity: Equal to it’s _____ density
  84. 84. Special Properties:
  85. 85. •magnetis •Optical Double refraction •Radioactivity •Fluorescen *Acid test
  86. 86. A mineral containing calcite ________will “fizz” when in contact acid with ________
  87. 87. Using Your Reference Table: You will be able to identify a mineral using the properties and characteristics
  88. 88. determines a minerals basic properties such as its
  89. 89. The internal arrangement of the molecules
  90. 90. 1. What properties are most important in identifying a mineral?
  91. 91. 2. What property causes a mineral to break in a particular pattern?

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