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

Author Question: Which sediment is categorized under cosmogenous sediments? a. Evaporites b. Ooliths c. ... (Read 54 times)

nelaaney

  • Hero Member
  • *****
  • Posts: 560

Which sediment is categorized under cosmogenous sediments?
  a. Evaporites
  b. Ooliths
  c. Microtektites
  d. Manganese nodules



Question 2

What valuable commodity has yet to be commercially mined from ocean sediments?
  a. Natural gas
  b. Gravel
  c. Diatomaceous earth
  d. Manganese nodules



Question 3

Sometimes formations on land can shed light on ocean processes. What do the White Cliffs of Dover
  in England show?
  a. An accumulation of very fine ooze of mixed origin that was pushed above sea level from
  plate tectonics.
  b. An accumulation of siliceous ooze that has risen above sea level from plate tectonics.
  c. A lithified calcareous ooze that was pushed above sea level from plate tectonics.
  d. A sheared cliff that formed during sea floor spreading




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wilsonbho

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

ANS: C
Microtektites are a type of cosmogenous sediments. They are thought to form from violent impacts of
meteors and asteroids on Earth. The impact melts part of the crust on impact, causing it to splash back
into space. The material melts again as it travels back through the atmosphere before falling back to
Earth. The result is translucent, oblong sediments made of glass particles. Information can be found in
the section Sediments May be Classified by Source.



Answer to Question 2

ANS: D
Manganese nodules have yet to be commercially mined due to their low market value. As techniques
for deep-sea mining become more advance and raw material prices increase, however, the nodules'
concentration of valuable materials will almost certainly be exploited. Information can be found in the
section Marine Sediments Are Economically Important.



Answer to Question 3

ANS: C
The White Cliffs of Dover are an example of the lithification of calcareous ooze. Although formations
like these are formed in the ocean, they are brought above sea level due to normal processes of plate
tectonics. Information can be found in the section Pelagic Sediments Vary in Composition and
Thickness.





nelaaney

  • Member
  • Posts: 560
Reply 2 on: Aug 22, 2018
Wow, this really help


raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

 

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

For a complete list of videos, visit our video library