Chapter 15 Review

The feature formed where a stream exits a canyon and spreads out across a valley floor is

alluvial fan

A wind-sculpted accumulation of sand is a

dune

The term eolian refers to

erosion, transportation, and deposition by the wind

A layer of wind-blown clay and silt derived from glacial deposits is

loess

The niches and alcoves in the image shown have been formed by

salt-crystal weathering and frost wedging

Which dunes are the largest in size and can reach 200m in height?

star dune

Distinctive, elongated wind-sculpted formations are called

yardangs

Saltation is responsible for approximately how much transport of particles by wind?

80%

Which dunes are crescent shaped with the horns pointing downwind?

barchan

Which two processes create desert pavement?

deflation and rain wash