« previous next »

Author Question: Which is an example of an authigenic sediment? a. Quartz sand b. Manganese nodules c. Volcanic ... (Read 89 times)

iveyjurea

  • Hero Member
  • *****
  • Posts: 555
on: Aug 22, 2018

Which is an example of an authigenic sediment?
  a. Quartz sand
  b. Manganese nodules
  c. Volcanic dust
  d. Diatomaceous earth



Question 2

What is a main source of terrigenous sediments?
  a. Volcanic eruptions
  b. Rivers
  c. Dust and ash
  d. Cosmic dust



strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: B
Authigenic sediments are also called hydrogenous sediments. These types of sediments are the results
of chemical interactions with seawater. Information can be found in the section Sediments May be
Classified by Source.



Answer to Question 2

ANS: B
Terrigenous sediments are those derived from land. The erosion on land is carried down rivers to the
ocean. Information can be found in the section Sediments May be Classified by Source.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Sand tiger next to a German U-boat in the Pine Knoll Shores Aquarium Sand tiger next to a German U-boat in the Pine Knoll Shores Aquarium
manganese manganese
The argon-argon method is useful for dating volcanic sediments. The argon-argon method is useful for dating volcanic sediments.
This Native American depiction of the Sand Creek Massacre, painted on a buffalo hide, shows the Indi This Native American depiction of the Sand Creek Massacre, painted on a buffalo hide, shows the Indi
Urine sediment chart. Urine sediment chart.
Formation of Sand Dunes Formation of Sand Dunes
Video: How does asthma work?And How do you treat asthma?

For a complete list of videos, visit our video library