« previous next »

Author Question: How does a glacial fjord form? What does it tell us about climate change after glaciation? What ... (Read 19 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
on: Jul 15, 2018
How does a glacial fjord form? What does it tell us about climate change after glaciation?
 
  What will be an ideal response?

Question 2

Compare and contrast proglacial lakes and pluvial lakes.
 
  What will be an ideal response?


joanwhite

  • Sr. Member
  • ****
  • Posts: 308
Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: Erosion from valley glaciers transforms stream valleys into glacial troughs. In the case of fjords, the mountain valleys are near the coast. Glaciers erode their beds below sea level, and when the glaciers retreat, seawater flows in to submerge the valley. After the glaciation and subsequent sea level rise, the trough is further submerged.

Answer to Question 2

Answer: Proglacial lakes form along glacial margins from meltwater coming off an ice sheet. Pluvial lakes form from rainwater collecting in a basin during a cooler, more moist climate.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Examples of variation in leaf form. Examples of variation in leaf form.
Fibroid tumors, or leiomyomas. Fibroids develop from the uterus to form a variety of hard, round ben Fibroid tumors, or leiomyomas. Fibroids develop from the uterus to form a variety of hard, round ben
Sample Student Externship Form Sample Student Externship Form
Ice cores: Periods of rapid climate change especially in North Atlantic Ice cores: Periods of rapid climate change especially in North Atlantic
Regions Where Hurricanes Form Regions Where Hurricanes Form
For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ... For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ...
Video: Virtual Tour of the Eye Animation

For a complete list of videos, visit our video library