Exam 18: Arid Landscapes and Eolian Processes

List and describe the ways in which the wind transports sediment.

_________ dunes form when opposing winds flow in similar directions,allowing the formation of two slip faces that are aligned with the wind.

The process through which formerly vegetated landscapes become desert is called desert production.

Saltation is in response to wind and

A(n)__________ is a broad,horizontal surface that is upheld by resistant caprock.

The removal of sediment from a surface by wind action is called

With wind direction shown with the arrows,what type of dune is represented in the following image?

As a result of multidirectional winds,what type of dune is represented in the following image?

There are only two types of dunes.

A very steep-sided valley that is cut into bedrock is called a(n)

An arroyo is a deep,steep-sided gully that is cut into alluvium.

This type of dune is produced from strong winds blowing in one direction while transporting small amounts of sand.

__________ dunes form when multidirectional winds allow the dunes to grow tall instead of migrating.

Subtropical High-Pressure Systems promote _______ air.

How can desertification be reversed?

The maximum slope a slip face can be before it collapses is typically 45°.

To move a particle of sediment,wind must have speeds nearly _____ times greater than the speed of water to move the same particle.

______ winds are common in desert environments due to the rapid warming and cooling of the terrain.

What are the prominent features associated with horizontal rock structures in arid environments?

List the eight major classes of dunes and explain why each forms the way it does.