Marine Transportation and deposition Sediment sources

Question 1

which 6 places does beach sediment come from?

Answer 1

Rivers, cliff erosion, wind, glaciers, offshore, human action

Question 2

How does beach sediment come from rivers?

Answer 2

High rainfall environments with significant river erosion,

Question 3

How does beach sediment come from cliff erosion?

Answer 3

unconsolidated cliffs that are easily eroded.
some areas retreat over 10m per year
mainly occurs in winter due to storms.

Question 4

How does beach sediment come from wind?

Answer 4

wind is a coastal energy source
sand is blown along or up the beach due to wind

Question 5

How does beach sediment come from glaciers?

Answer 5

glaciers flow into ocean depositing sediment that was once stored in ice
glaciers calve and break ice which produces sediment

Question 6

What are some examples of Glaciers?

Answer 6

Antarctica, Greenland, alaska and patagonia.

Question 7

How does beach sediment come from offshore?

Answer 7

sediment is transferred to the coastal zone when waves, tides and currents erode offshore shore sediment and sinks forming offshore bars etc.

Question 8

How does beach sediment come from human action?

Answer 8

sand mining areas, disposal sites, excavation, dredging, beach nourishment, recreation of new land (reclamation) hard engineering structure.