Sedimentary
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Sedimentary

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Sedimentary Presentation Transcript

  • 1. Sedimentary rocks originate from:
  • 2. water
  • 3. Sedimentary rock forms layer a thin ____________ on top of existing rock.
  • 4. SEDIMENTARY ROCK LAYERS: AZ
  • 5. 1.CLASTIC Sediments cemented together
  • 6. 2.BIOCLASTIC Remains of plants & animals
  • 7. 3.CRYSTALLINE newly reformed mineral crystals
  • 8. 1. CLASTIC Sedimentary Rock: Contain layers of particles (sediments) ______________ formed from the breakdown of other rocks ( weathering) ________
  • 9. Characteristics of clastic sedimentary fragmental rock: (__________) A. Varied particle size B. Horizontal layers C. Formed in water
  • 10. CONGLOMERATE MIXED PARTICLE SIZE
  • 11. SEDIMENTARY LAYERS
  • 12. Sedimentary rock is UNLIKE loose sediment because sediments have been
  • 13. compressed ______________ and cemented ______________ together.
  • 14. How do Sedimentary Rocks Form?
  • 15. ___
  • 16. Three examples of natural cement are: lime & silica & calcite
  • 17. Classification of sedimentary rock is based on: Texture or Grain size
  • 18. 2. BIOCLASTIC Sedimentary Rocks are formed by the accumulation of plant _________ or animal _________ remains
  • 19. *Limestone is the Accumulation of Shells and animal skeletons (calcite)
  • 20. BECOME BURIED COMPRESSED
  • 21. GREAT BARRIER REEF MAY SOMEDAY BE LIMESTONE
  • 22. CORAL REEF
  • 23. *Coal is the remains of BECOME Coal Plants that BURIED accumulate in & layers and COMPRESSED FOR MILLIONS OF YEARS!!!!!!
  • 24. THIN COAL LAYERS CLASTIC BIO-CLASTIC
  • 25. 3. Crystalline sedimentary rocks are formed from minerals that WERE dissolved _______________ in water.
  • 26. Minerals that were once dissolved are called: evaporites and precipitates
  • 27. crystalline sedimentary rocks are made of only one mineral
  • 28. and are called monomineralic
  • 29. Examples include:
  • 30. HALITE (SALT)
  • 31. DOLOSTONE
  • 32. CHALK CLIFFS: ENGLAND
  • 33. CHALK
  • 34. A fossil is evidence a rock is sedimentary _____________
  • 35. Sedimentary Rock layers Near Albany New York
  • 36. Fossil Collectors In action
  • 37. Marine fossils in the limestone
  • 38. A Waterfall weathering The rock
  • 39. ru Running water at work again
  • 40. Looking over a waterfall
  • 41. Weathered layers of sedimentary rock
  • 42. Roadcut …perfect place to Find fossils
  • 43. Devonian fossils of marine life
  • 44. Devonian Rooster coral
  • 45. Fossil are rare in igneous and metamorphic rocks
  • 46. USE YOUR REFERENCE TABELS TO ANSWER QUESTIONS 1-11
  • 47. SEDIMENTARY ROCKS Clastic Bioclastic Crystalline
  • 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. Rocks, Minerals, & Resources
  • 50. Rock and Mineral resources are Non-renewable
  • 51. Conservation And Recycling are essential….
  • 52. Re-duce Re-use Re-cycle
  • 53. 1. The Lithosphere: Composed of ROCKS
  • 54. 2. Rocks:of Composed MINERALS
  • 55. 3. Minerals: Composed of ELEMENTS
  • 56. Most Abundant Elements: Oxygen O Silicon Si
  • 57. Minerals Containing these elements (oxygen & silicon) are known as: Silicates
  • 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. 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. Minera ls: Naturally occurring inorganic solids definite: chemical composition, molecular structure & physical properties
  • 61. The most common rock-formers: Listed on the reference tables see back page
  • 62. MINERAL CHARACTERI STICS
  • 63. Luster: Light Appearance of________ reflected from a minerals surface ® metallic ® non-metallic ® glassy, waxy, greasy, pearly,earthy, dull
  • 64. Metallic
  • 65. Non- Metallic glassy, waxy, greasy, pearly,earthy, dull
  • 66. Hardness: Resistance to being ®SCRATCHED _________
  • 67. Moh’s Scale of Hardness The scale is from 1-10 diamond is the hardest mineral
  • 68. Hardness is due to the internal arrangement of the molecules or the Atoms
  • 69. This mineral will be soft due to the loose arrangement of the molecules
  • 70. This mineral will be hard due to the tight arrangement of the molecules
  • 71. We will compare a minerals hardness to glass
  • 72. If it scratches the glass It must be as hard or harder
  • 73. Cleavage: Some minerals tend to break along one or more smooth surfaces
  • 74. Cleavage is also due to : the internal arrangement of the molecules
  • 75. ook at the patte patt It can tell you how the mineral might break
  • 76. Fracture: When a mineral has no well-defined cleavage plane uneven Breaks in _______ jagged surfaces
  • 77. Color: May be used to identify some ___________ minerals many minerals have the same ___________color some minerals come in many ___________ colors
  • 78. Pigments:
  • 79. Streak: Color of the powder ______ of a mineral when crushed or scratched across
  • 80. Crystal: The appearance that results from the internal atomic arrangement _______________
  • 81. HALITE (NaCl) FLUORITE (CaF2)
  • 82. Common minerals And their uses:
  • 83. Specific Gravity: Equal to it’s _____ density
  • 84. Special Properties:
  • 85. •magnetis •Optical Double refraction •Radioactivity •Fluorescen *Acid test
  • 86. A mineral containing calcite ________will “fizz” when in contact acid with ________
  • 87. Using Your Reference Table: You will be able to identify a mineral using the properties and characteristics
  • 88. determines a minerals basic properties such as its
  • 89. The internal arrangement of the molecules
  • 90. 1. What properties are most important in identifying a mineral?
  • 91. 2. What property causes a mineral to break in a particular pattern?