| 1. | The Colma Formation is found under the dune sands and also extends inland.
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| 2. | Great accumulations of dune sand hardened to form sweeping arcs in cross-bedded sandstone.
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| 3. | It comprises Basement Complex, coal bearing Bara Formation, alluvial deposits and dune sand.
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| 4. | The overburden consists of three kinds of material; dune sand, alluvium and sedimentary sequence.
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| 5. | The strongly alkaline, calcareous dune sand of the coast lies over a base of older limestone.
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| 6. | In some places, this limestone juts out of the dune sand, and forms impressive beach cliffs.
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| 7. | The area is dominated by dune and swale topography . the ridges or swells are beach and dune sand.
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| 8. | The primary source of the dune sands is probably the Cottonwood Mountains which lie to the north and northwest.
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| 9. | The interior plains of Oman are of young sedimentary rocks, wadi gravels, dune sands and salt flats.
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| 10. | During times when the seas retreated, stream deposits and dune sands were deposited or older layers were removed by erosion.
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