Page 285 - (DK) The Ultimate Visual Dictionary 2nd Ed.

WEATHERING AND EROSION

SECTION THROUGH A BARKHAN DUNE EXAMPLES OF SAND DUNES
Direction of wind- Dune at
blown sand Wind Crescent-shaped Wind right angle
Strong Direction of direction dune direction to wind
wind Windward sand movement
face
Slip face
Weak
wind Foreset
strata

BARKHAN DUNE TRANSVERSE DUNE
Cross-bed set Topset Bottomset
strata strata
Wind Point where sand Wind
direction ridges meet direction Parallel
Canyon
dunes
Wadi (dry wash)
Mesa (flat-topped
plateau)
Talus (scree)
STAR DUNE SEIF (LINEAR) DUNE
Butte (flat-topped mesa remnant)
Eroded arch
Residual hill on pediment
Hamada (rock pavement)
Rock pedestal
Barkhan dune
Parabolic dune
Transverse dune

Seif (linear) dune
Inselberg
(isolated,
steep-sided
hill)

Playa
(dry lake
bed of salt or
desiccated clay)
Hard granite
Faultline
Cuesta (asymmetric
Freshwater lake ridge)
Faultline
Fertile oasis
Hard sandstone
Deflation hollow created
by wind erosion Hogback (steep ridge)
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