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

Author Question: Differentiate between alpine and continental glaciers, ice caps and ice fields. What will be an ... (Read 91 times)

Cooldude101

  • Hero Member
  • *****
  • Posts: 557
Differentiate between alpine and continental glaciers, ice caps and ice fields.
 
  What will be an ideal response?

Question 2

Describe the factors influencing the weathering process. Explain what is meant by differential weathering.
 
  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

hramirez205

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

The two main glacier groups based on their form, size, and flow characteristics are alpine glaciers and continental ice sheets. With few exceptions, glaciers in a mountain range are alpine glaciers (also called mountain glaciers). Alpine glaciers can be further classified into several subtypes. A valley glacier is a mass of ice confined into a stream-formed valley. A cirque glacier is one which forms within the snow filling a cirque. A piedmont glacier is formed wherever several valley glaciers pour out of their confining valleys and coalesce at the base of a mountain. A tidewater glacier (tidal glacier) is an alpine glacier that ends in the sea.
By contrast, an ice sheet is an extensive, continuous mass of ice that occurs over a landmass. Most of the Earth's glacial ice exists in ice sheets. Ice sheets dominate 81 of Greenland and 90 of Antarctica. These ice sheets have enormous mass and cause isostatic depression of the land mass upon which they reside. They have a thickness over 3,000 m (9,800 ft). At the edge of ice sheets are ice shelves, permanent masses of ice that extend out over the sea.
In addition to ice sheets, ice caps and ice fields have continuous ice cover, but on a smaller scale than ice sheets. An ice cap is roughly circular and cover and area of less than 50,000 km2 (19,300 mi2). An ice field extend in an elongated pattern over a mountainous region, but is not extensive enough to form an ice cap.

Answer to Question 2

The major factors influencing the weathering process include: rock composition and structure; climate; slope orientation; subsurface water; vegetation; and time.
Differential weathering: Rarely does weathering occur evenly within a single-landform due to subtle inconsistencies in rock composition, depressions in the land, etc. As a results, rocks of the same composition and structure in the same area may still weather at different rates.




Cooldude101

  • Member
  • Posts: 557
Reply 2 on: Jul 14, 2018
Excellent


milbourne11

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

For a complete list of videos, visit our video library