Science reading the earth sediment layers

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Science reading the earth sediment layers

  1. 1. READING HISTORYTHROUGH LAYERS OFSEDIMENTHow the earth tells a story
  2. 2. What are Sedimentary Rocks?Remember the 3types of rocks?... Metamorphic Igneous Sedimentary
  3. 3. Erodeddebris istransportedby riversanddepositedas newlayers ofsedimentaryrock.A series ofsedimentaryrock layersmay bethousands
  4. 4. Reading Sedimentary DepositsTo interpret the sedimentary recordcorrectly, we must first understandsomething about modern sedimentarysystems.1) the sources of sediment2) transportation pathways3) places where sediment isaccumulating today, such as deltas,beaches, and rivers.
  5. 5. The Earths Story
  6. 6. Reading the StoryFrom the composition ofsediment (what it ismade up of) we can readexactly what happenedon earth at that time.This can include:- Animals- Temperate Change- Natural Disasters- PeopleLets have a look at theGrand Canyon is USA.
  7. 7. Slide Show Tips
  8. 8. HOMEWORKDraw andLabel adiagramshowing howsedimentlayers form.

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