Landforms formed by deposition

Cards (17)

  • What are coastal landforms caused by?
    Deposition
  • How are beaches formed?
    By deposition
  • What materials are deposited to form beaches?
    Sand, spits, bars, and dunes
  • What is the role of longshore drift in coastal landforms?
    It moves sediment along the coast
  • How do wind and waves affect coastal landforms?
    They can shape and erode the coastline
  • What is a bar in coastal geography?
    A barrier formed by sediment deposition
  • How do bars form?
    When two headlands join together
  • What is a spit?
    A narrow landform extending from the coast
  • What happens to the sediment behind a spit?
    It can form a lagoon
  • How do dunes contribute to coastal ecosystems?
    They provide habitats for various species
  • What is the significance of vegetation in sand dunes?
    It stabilizes the sand
  • What happens to older dunes over time?
    They can migrate inland
  • What are the characteristics of mature dunes?
    They can reach heights of up to 10 m
  • What do depositional bars provide along the beach?
    They serve as habitats for organisms
  • What are the main processes involved in the formation of coastal landforms?
    • Deposition of sediment
    • Longshore drift
    • Erosion by wind and waves
    • Formation of bars, spits, and dunes
  • How do vegetation and dunes interact in coastal ecosystems?
    • Vegetation stabilizes sand dunes
    • Dunes provide habitats for plants and animals
    • Older dunes can migrate inland over time
  • What are the ecological roles of bars and spits?
    • Provide habitats for various organisms
    • Influence sediment deposition patterns
    • Create lagoons and sheltered areas