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Author Question: An area is found to have a high rate of erosion. What kind of sediment is likely to be in the ... (Read 11 times)

lak

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on: Aug 22, 2018

An area is found to have a high rate of erosion. What kind of sediment is likely to be in the
  surrounding waters?
  a. Well-sorted sediments
  b. Poorly-sorted sediments
  c. One size of sediment
  d. Course grained sediments



Question 2

A deep ocean ooze was discovered near Antarctica. What type is it likely to be?
  a. Radiolarian ooze
  b. Calcareous ooze
  c. Diatom ooze
  d. Foraminfera ooze



Sierray

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Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: B
The erosion would produce many sizes of sediments. Poorly sorted sediments form in environments
where energy fluctuates especially due to wave and current actions. Information can be found in the
section Sediments May Be Classified by Particle Size.



Answer to Question 2

ANS: C
Diatom oozes occur at high latitudes in areas with seasonal upwelling. Although diatom and
radiolarian oozes are both siliceous, radiolarian ooze tends to form in equatorial waters. Information
can be found in the section Pelagic Sediments Vary in Composition and Thickness.



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