Abstract:During the Middle Jurassic, an ancient carbonate ramp was extensively developed on the western margin of the Tethys Sea, in Central Saudi Arabia. Three cliff-forming outcrops of the Dhruma Formation, representing the platform, near Khashm Ad-Dhibi, the Riyadh region, were investigated to identify and understand their microfacies variability. Detailed field investigations, petrographic (thin section, XRD and SEM) and biofacies analyses were utilized to identify and quantify bulk mineralogy, and construct and in… Show more
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