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

Author Question: What can lithified or ancient sand dunes tell us? What will be an ideal ... (Read 38 times)

Cooldude101

  • Hero Member
  • *****
  • Posts: 557
What can lithified or ancient sand dunes tell us? What will be an ideal response?

Question 2

Briefly explain why loess can originate in, but is not deposited in, deserts. 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

xiazhe

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

Dunes indicate that they were deposited by wind, and they reflect the direction of prevailing winds
when they were deposited



Answer to Question 2

For loess to accumulate, it must be stabilized by moisture and vegetation.



Cooldude101

  • Hero Member
  • *****
  • Posts: 557

xiazhe

  • Sr. Member
  • ****
  • Posts: 331

 

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

For a complete list of videos, visit our video library