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  • 1. C. DEPOSITION The _____________ of particles and fragments. It is also called ___________________
  • 2. The agents of deposition are:   ____________________   ____________________   ____________________
  • 3. RATES OF DEPOSITION DEPEND ON: 1. Particle size: ________ particles (clay,silt) settle more slowly than larger particles.
  • 4. ________ do not settle out of solution unless the solution becomes _______________ _____________& __________ are the ions that come out of solution.
  • 5. 2. Particle shape: ____________ between water and the surface of particles _______ settling. As the surface area ___________ the time it takes to settle __________
  • 6. 3. Particle Density: ____________ particles settle faster.
  • 7. What is the relationship between settling rate and particle size? Complete the graphs: label each axis Settling rate Particle size
  • 8. What is the relationship between settling rate and shape? Settling rate Particle gets flatter
  • 9. What is the relationship between settling rate and density? Settling rate density
  • 10. Settling Rate and Settling Time: As the rate of settling settling The settling time rate Complete the graph: this relationship is Settling time indirect
  • 11. VELOCITY OF TRANSPORTING MEDIUM: The slower the velocity of the water the ________ particles will settle. It takes longer for particles to settle in ___________ water.
  • 12. SORTING OF SEDIMENTS: Horizontal Sorting: a gradual change in the size,shape and density (of deposited particles) when a stream slows down
  • 13. Horizontal Sorting boulders cobbles Roundest pebbles and sand densest Precipitation …………… silt ……………. Ions in ……………. (colloids) clay ……………. solution Smallest flattest least dense
  • 14. Mississippi River Delta
  • 15. Nile River Delta
  • 16. Vertical Sorting &
  • 17. Graded Bedding: Each layer represents a single event of deposition Largest at bottom smallest at top
  • 18. EROSIONAL -DEPOSITIONAL SYSTEM: ___________ or ___________ are examples of this kind of system.
  • 19. Within a stream system energy transforms from ____________ to ____________ energy.
  • 20. Erosion _____________ _Will dominate in the steeper section and
  • 21. Deposition ______________ In places of less gradient or slope.
  • 22. Kinetic Energy depends on Slope- __________________ velocity increases Kinetic energy increases more erosion occurs
  • 23. Potential Energy depends height on__________ not Slope energy is stored and deposition occurs
  • 24. When the rate of erosion equals rate of deposition: Dynamic Equilibrium ___________________ is reached
  • 25. Erosion occurs more often on land _______ And Deposition occurs in large bodies of water _______
  • 26. Side View lake A B C D Ocean Top View A B C lake D Ocean
  • 27. Streams that flow over flat valleys may develop meandering paths because of erosion and deposition.
  • 28. Glaciers
  • 29. Sediments left by glaciers are: _______________
  • 30. Glacial erratics are large rocks that have been transported by glacial ice without being broken into pieces
  • 31. Some Glacial Features include: U-shaped valleys Moraines unsorted sediments drumlins kettle lakes Drumlins finger lakes outwash plains Kettle lakes erratics outwash plain
  • 32. WIND:
  • 33. Sediments left by wind are ________________
  • 34. Sand dunes may form with a gentle slope facing into the wind ________________ Windward side And a steep slope on the opposite leeward side side___________
  • 35. When wind direction changes sand dunes cross each other creating a feature known as Cross bedding ________________ Most sand dunes are well sorted ___________ layers in sloping ____________
  • 36. Deposition on Coastlines by Ocean Waves and Currents:
  • 37. The sand grains are rounded _____________ & frosted ______________
  • 38. Wind _______ Generates Waves
  • 39. Waves move sand parallel __________ to the shore
  • 40. Barrier beaches may form like Jones Beach or Fire Island
  • 41. Wave action rounds sediments as a result abrasion of __________