Coasts and Islands Vocabulary

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Across
  1. 2. Manmade structures are constructed along shorelines with the purpose of controlling beach erosion caused by wave action
  2. 3. The sea-level rise has drowned one or more deep, glacier-carved valleys
  3. 8. Where land is uplifting faster than the sea is rising; Typically rocky; Staircase-like structures form
  4. 9. A long container filled with sand and water; can be laid along the top of a beach, inside a dune, or just offshore, where they reduce coastal erosion
  5. 10. Pile of large rocks built out from the shore; Slows erosion by causing a local buildup of sand; short extensions found on the beach; always man-made
  6. 12. Zone where the land meets the sea. Extends from the shoreline to the first major terrain change
  7. 15. Sea-level rise has drowned a region of coastal river valleys, forming a series of wide estuaries, often separated by long peninsulas
  8. 19. This zone is the area covered by water during low tide. It is constantly pounded by waves as the tides ebb and flow. Burrowing organisms live here
  9. 20. The part of the beach face that is alternately covered and uncovered with water as each wave arrives
  10. 22. Rise directly from the sea bed due to seismic or volcanic activity. Never been a part of a continent
Down
  1. 1. Seaward, extending out to the area where the waves break
  2. 4. Caused from a global or regional sea level rise; occur where water covers what used to be dry coastline
  3. 5. Formed from sediment brought to a coast by rivers, erosion of headlands, or moved from offshore by waves
  4. 6. Designed to reflect wave energy
  5. 7. Long extensions that can be natural or man-made, designed to slow or stop erosion of waterways. Similar to rock groynes but much longer and narrower
  6. 11. Found in shallow seas off large landmasses. Has split off from the main land either from plates moving away from each other, sinking of land areas, or sea level rising
  7. 13. This zone begins at the base of the dunes to the high tide line; Few plants
  8. 14. Adding large amounts of sand to a beach; Waves and tides spread the sand along the coast, helping to build it up
  9. 16. Type of secondary coast, consisting of heavily wave-eroded cliffs. Waves hurl beach material against the cliffs eroding rock and creates headland
  10. 17. This zone contains the area on the beach that is pounded by the surf during high tide, but during low tide, is exposed to the air and sun; no plants in this zone
  11. 18. Islands that run parallel to the shoreline/mainland. Designed to protect the mainland. Ex. Galveston Island
  12. 21. Important nesting grounds for shorebirds; protecting the areas behind them from erosion and storm surge; formed from sand brought in by waves and wind