This topic contains a solution. Click here to go to the answer

Author Question: What was the primary way sediment was transported to North America (east coast) continental margin ... (Read 111 times)

Haya94

  • Hero Member
  • *****
  • Posts: 558

What was the primary way sediment was transported to North America (east coast) continental margin
  during the last ice age?
  a. Rivers carry the sediment right to the shelf edge.
  b. Strong currents carry the sediment to the contential shelf edge.
  c. Wind blows sediment from the continent to the shelf edge
  d. Glaciers



Question 2

If there is an abundance of foraminifera shells found in a sediment, it would be categorized as:
  a. hydrogenous sediment.
  b. calcareous ooze.
  c. coccolithophore.
  d. siliceous ooze.




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

IRincones

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

ANS: A
The North American continental shelf was exposed above sea level during the last ice age. Rivers
traversed the shelf and transported sediment onto the shelf. This allows sediments from the last ice
age to remain on the ocean floor. Information can be found in the section Neritic Sediments Overlie
Continental Margins.



Answer to Question 2

ANS: B
Ooze is created when at least 30 of the sediment is biogenous in origin. There are two types of oozes
that form. Calcareous oozes are made from the shells of foraminifera, pteropods, and coccolithophores.
These are unable to form below a certain depth. Information can be found in the section Pelagic
Sediments Vary in Composition and Thickness





Haya94

  • Member
  • Posts: 558
Reply 2 on: Aug 22, 2018
Thanks for the timely response, appreciate it


Animal_Goddess

  • Member
  • Posts: 339
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

For a complete list of videos, visit our video library