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Phase 2
Phase 2
Phase 1
Phase 1
Phase 3
Phase 3
Gulf
of
Oman
Gulf
Gulf
of
of
Oman
Shelf
Oman
0
0
50 km
50 km
Figure 17.6 Phases of deposition in the Wahiba Sands, Oman. Sands have been derived by the inland transport of coastal
carbonate sands in at least three phases; in the third, Holocene, phase, cemented cliff sands have been deflated and transported
inland (redrawn after Cooke, Warren and Goudie, 1993).
N
Sand stringers or sheets
(extra ergal source)
Koppies -
kraalpan
Lunette
dune
Lunette dune
(intra ergal source)
0
10 km
Figure 17.7
Space shuttle hand-held camera photograph of part of the southwestern Kalahari dunefield, southern Africa. Linear
dunes dominate this sand sea, but larger, more amorphous sand sheets or stringers, also trending west-east, can also be identified.
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