« previous next »

Author Question: How does ground moraine form? Relate the formation of ground moraine to changes in climate. What ... (Read 26 times)

NClaborn

  • Hero Member
  • *****
  • Posts: 560
on: Jul 15, 2018
How does ground moraine form? Relate the formation of ground moraine to changes in climate.
 
  What will be an ideal response?

Question 2

North American glaciations used to be described in four episodes. However, two of those episode names, the Kansan and Nebraskan, are no longer used. What evidence did scientists use to redefine the glacial history on the North American continent?
 
  What will be an ideal response?


voltaire123

  • Sr. Member
  • ****
  • Posts: 301
Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: Ground moraines form when ablation exceeds the nourishment of a glacier. The glacial ice is still flowing forward, but the terminus is retreating, so the sediment melting out of the ice form is deposited on the ground as the terminus retreats, creating an undulating plain strewn with rocks. This process relates to climate change because glacial retreat generally indicates a warming climate.

Answer to Question 2

Answer: Ocean cores show evidence for up to 20 glaciations, not simply 4.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Ground coffee magnified Ground coffee magnified
Fossils are formed after an animal dies, decomposes, and is covered in sediment. Minerals in ground Fossils are formed after an animal dies, decomposes, and is covered in sediment. Minerals in ground
A computerized patient registration form used by offices with electronic health records. A computerized patient registration form used by offices with electronic health records.
Tornado Formation: Supercell Tornado Development Tornado Formation: Supercell Tornado Development
Formation of membrane attack stage of complement. C3b containing structures (see above) on the ... Formation of membrane attack stage of complement. C3b containing structures (see above) on the ...
Climate Change: Volcanoes Timescale Climate Change: Volcanoes Timescale
Video: Griffith's experiments

For a complete list of videos, visit our video library