« previous next »

Author Question: How does ground moraine form? Relate the formation of ground moraine to changes in climate. What ... (Read 62 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?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Ground cover and colour such as shown here in (a) white sand Ground cover and colour such as shown here in (a) white sand
By reflecting most visible light, snow creates a much cooler microclimate than nearby bare ground. By reflecting most visible light, snow creates a much cooler microclimate than nearby bare ground.
Formation of Sodium and Chloride Ions Formation of Sodium and Chloride Ions
The hazmat training pyramid. It is important to train from the ground up, starting with a firm grasp ... The hazmat training pyramid. It is important to train from the ground up, starting with a firm grasp ...
Formation of the Early Earth Formation of the Early Earth
Bone Formation Bone Formation
Video: Interspecific Competition Relationship - Competitive & Niche Differentiation

For a complete list of videos, visit our video library