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 35 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?

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?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Feedforward events can be conditioned to external stimuli. Feedforward events can be conditioned to external stimuli.
The American Lion was one of the abundant Pleistocene megafauna, a wide variety of very large mammal The American Lion was one of the abundant Pleistocene megafauna, a wide variety of very large mammal
Major Events in the History of Psychology Major Events in the History of Psychology
Siblings report on what life events triggered changes in their relationships with each other, how ... Siblings report on what life events triggered changes in their relationships with each other, how ...
The Events of the Germinal Period The Events of the Germinal Period
Bronfenbrenner's bioecological theory Bronfenbrenner's bioecological theory
Video: Hormonal feedback loop components

For a complete list of videos, visit our video library