1. Oceans
Coastal Processes

2. NAUSET BEACH, CAPE COD

4. DO NOW: LIST 5 THINGS YOU KNOW ABOUT OCEANS...
Jones beach on left and Nauset Beach on right
HOW DO OCEANS AFFECT EARTH’S SURFACE?

5. Over 71% of earth’s surface is covered with ocean water
Average oceanic depth is around 4km(that’s higher than Mt. Everest)
Most of the sediment on land will erode into the oceans

6. Sodium chloride is the most common salt found in the ocean-others include Mg, Ca, and K)
If ocean water evaporates, the salt concentration will rise and precipitate out of solution (sedimentary rock)

7. Salt Pillars
the Dead Sea is the lowest point on dry land- around 1,350ft below sea level- found near Jordan-first Roman spa...

8. How does the ocean water transport sediment?
Longshore Transport: transport along shoreline due to waves-erodes shoreline
Waves: caused by wind

9. Waves Wind pushes water into a wave (oscillates)
The wave flattens out with decreasing depth
Breaks when the top of wave is too far ahead of bottom

10. Beach Structures due to Geologic Activity
Jetty: these are man made structures used to prevent beach erosion

11. Barrier Islands- carved out by waves
Barrier Islands along Rhode Island

12. Sand Bar- deposit of sediments due to wave action

13. Terraces: raised beach due to crustal uplift
Pacific beach terraces

14. Baymouth Bar-formed by Longshore current closes off bay
baymouth bar Lake Winnepeg Manitoba, Canada

15. Spit: formed by longshore current - opened

16. Wave Cut Cliff

17. Sea
Stack

18. Volcanoes National Park - Holei Sea Arch, Kona, United States