The geology of Saudi Arabia includes Precambrian igneous and metamorphic basement rocks, exposed across much of the country. Thick sedimentary sequences from the Phanerozoic (including sandstone, anhydrite, dolomite, limestone, chert and marl) dominate much of the country's surface and host oil.
The geology of Saudi Arabia includes Precambrian igneous and metamorphic basement rocks, exposed across much of the country. Thick sedimentary sequences from the Phanerozoic (including sandstone, anhydrite, dolomite, limestone, chert and marl) dominate much of the country's surface and host oil.
Source: Wikipedia "Geology of Saudi Arabia" · CC BY-SA 4.0
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