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Remote Sensing Lab, Part B

Remote Sensing Lab, Part B. Patterns of Deposition. Background. The purpose of this lab in to develop an understanding of how fluvial (= river) processes, wave processes, and wind produce deposits of sediment. Meandering river = fluvial sedimentation

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Remote Sensing Lab, Part B

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  1. Remote Sensing Lab, Part B Patterns of Deposition

  2. Background The purpose of this lab in to develop an understanding of how fluvial (= river) processes, wave processes, and wind produce deposits of sediment

  3. Meandering river = fluvial sedimentation Low-energy (slowly flowing) rivers

  4. Deltaflowingrivermeets stillbody ofwater1. River2. Delta3. Lake4. Delta Front5. Prodelta 6. Distributary

  5. Delta,continued Close-upof distributarymouth

  6. Alluvial fan – delta on land

  7. Sand dune – wind sedimentationdeserts and beaches

  8. Sand Bars, Barrier Islands and Spitssedimenttransport by oceanwaves causelongshore flow

  9. Instructions For each five areas: 1. Two images are provided for each area: Image 1: Location of the study area (its right in the middle) Image 2: The study area itself. Find the study area on Google’s satellite map feature and use it to view the area. Examine it at a variety of zoom levels. 2. Identify the main rivers (if any), their direction of flow, and assess whether the flow is likely high-energy or low-energy. Identify bodies of salt water (if any) and assess whether they are high-energy (that is, subject to ocean waves) or low-energy. 3. Identify what parts of the region are topographically high and topographically low. Both the pattern of rivers and shadows can help.

  10. Instructions, continued 4. Identify deposits of sediment, and describe where they came from and the processes that moved them and caused them to accumulate. Make some inference about the type of sediment (e.g. coarse or fine) based on the energy-level of the environment. 5. Make a full-page sketch of the area. Include rivers, valleys, canyons, ridges, oceans, bays, etc. and a scale in kilometers. Identify the high ground and the low ground. 6. Describe briefly how the sediment deposits have changed (and are changing) with time. Identify specific evidence that supports your ideas.

  11. Area 1: Mississippi River near Greenville

  12. Area 1: Mississippi River near Greenville

  13. Area 2: Mississippi Delta

  14. Area 2: Mississippi Delta

  15. Area 3: Cape Hatteras

  16. Area 3: Cape Hatteras

  17. Area 4: In Nevada

  18. Area 4: In Nevada

  19. Area 5: In Algeria

  20. Area 5: In Algeria

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