Deposition

Question 1

What is deposition

Answer 1

Process where sand and rocks are deposited

Question 2

What are the 4 forces causing deposition

Answer 2

Wind, water, ice, gravity

Question 3

What happens in coastal environment

Answer 3

deposition occurs at or near coast. Happens when forces responsible for moving sediment weaken and can no longer support the sediment

Question 4

Spit

Answer 4

stretch of sand/shingle stretching out from the mainland

Question 5

What causes spits

Answer 5

Sudden change in coastal shape. ex. headland

Question 6

Longshore drift and deposition?

Answer 6

Longshore Drift always transports sediment in the same direction, regardless of coast shape.

Question 7

What happens near estuaries

Answer 7

Deposition occurs there

Question 8

Refraction of spit turns it into a ___________

Answer 8

hook; Recurved spit

Question 9

Spits are eroded by ________

Answer 9

wind plus sea

Question 10

Spits are maintained by _________

Answer 10

constant stream of sediment from longshore drift

Question 11

What can cause rapid change in spit shape

Answer 11

Sudden storm

Question 12

What conditions are needed for a sand dune

Answer 12

large supply of sediment
relatively strong and continuous wind to move sediment inland

Question 13

Obstacles are ___________

Answer 13

deposited at strandline (high water mark). Blocks wind and forces sand to be deposited.

Question 14

Over time, sand build and forms an ___________

Answer 14

Embryo dune