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

Author Question: Why do continental glaciers flow? ... (Read 51 times)

APUS57

  • Hero Member
  • *****
  • Posts: 571
Why do continental glaciers flow?

Question 2

Explain the difference between a terminal moraine and recessional moraine and how they are formed.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cuttiesgirl16

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Aug 7, 2018
Answer to Question 1

Glaciers flow by internal plastic deformation when the weight of overlying ice, firn, and snow causes ice crystals at depth to arrange themselves in parallel layers that glide over each other. This deformation happens when a threshold pressure from the overlying mass is exceeded. Pressure is greater under thicker accumulations of ice, so continental glaciers flow radially outward from central areas of thicker ice to marginal areas of thinner ice.

Answer to Question 2

Terminal moraines and recessional moraines are types of end moraines, which are ridges of sediment deposited at the toe of a glacier. Terminal moraines mark the farthest advance of a glacier. Recessional moraines, however, are deposited during temporary pauses of a retreating glacier.




APUS57

  • Member
  • Posts: 571
Reply 2 on: Aug 7, 2018
Thanks for the timely response, appreciate it


TheDev123

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

For a complete list of videos, visit our video library