GEOLOGICAL WORK OF WIND
Erosion
Transportation
Sedimentation
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