GEOLOGICAL WORK OF WIND

ErosionTransportationSedimentation

Erosion

METHODS OF WIND EROSION

• DEFLATION• ABRASION• ATTRITION

FEATURES OF WIND EROSION

1. OASIS:(Deflation feature)

2. YARDANGS

• Abrasion feature

3. PEDESTAL ROCKS

• Abrasion feature

4. VENTIFACTS

Abrasion feature

5. DESERT PAVEMENTS

Transportation

SEDIMENTS TRANSPORTED BY WIND

• METHODS:– CREEP– SUSPENSION– SALTATION

Deposition

TYPES OF DEPOSITINAL FEATURE

1. DUNES

a) CRESENTIC DUNES

b. BARCHANS

c. THE SIGMOIDAL DUNES

2. LOESS