This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How does the Milankovitch theory explain intermediate-term climatic events like the Pleistocene ... (Read 58 times)

anjilletteb

  • Hero Member
  • *****
  • Posts: 569
on: Jul 15, 2018

How does the Milankovitch theory explain intermediate-term climatic events like the Pleistocene
  glaciation? According to Milankovitch, variations in what three parameters of Earth's orbit were
  responsible for the onset of Pleistocene glaciation? What will be an ideal response?



Question 2

Explain the origin of varves and their significance in the chronologies of glacial lake deposits. What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

coyin

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 15, 2018
Answer to Question 1

According to the Milankovitch theory, there is a 100,000-year cycle of eccentricity (departure from a
perfect circle) of Earth's orbit in three areas: the precession of equinoxes, changes in axial tilt, and
orbital eccentricity. This affects the amount of solar radiation coming in at different latitudes,
sometimes resulting in cooling.



Answer to Question 2

Varves are laminated silts and clays that are deposited in glacial lakes and marine waters beneath
regions of fluctuating sea ice cover. The darker layers are deposited at the end of the summer season
when the summer's life dies and becomes incorporated in the accumulating sediment. The lighter- and
finer-grained layers are deposited during the winter when the water is still, lacking abundant life, and
receiving little sediment. Thus, each light and dark pair represents one year's accumulation.



anjilletteb

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Jul 15, 2018
Thank you


coyin

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 15, 2018
No problemo


« previous next »
 

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

The events in inflammation. The events in inflammation.
The Hippocampal Formation and Long-Term Potentiation The Hippocampal Formation and Long-Term Potentiation
Structures of a bulged A in an RNA-RNA helix and an intermediate in the splicing Structures of a bulged A in an RNA-RNA helix and an intermediate in the splicing
Four kinds of evidence supporting the theory that species evolve. Four kinds of evidence supporting the theory that species evolve.
End of the last Pleistocene glacial maximum End of the last Pleistocene glacial maximum
Explain how it can be desirable from an intertemporal perspective for a country run a current ... Explain how it can be desirable from an intertemporal perspective for a country run a current ...
Video: Definition of heart rate

For a complete list of videos, visit our video library