Calcareous dunes of the United Arab Emirates and Noah's Flood: the postglacial reflooding of the Persian (Arabian) Gulf
摘要
Aeolian dunes cover most of the United Arab Emirates and a large part of the eastern Arabian Peninsula. Although these sands, as well as older aeolianites, are largely composed of quartz, there is a high percentage of detrital carbonate in them south of the Persian (Arabian) Gulf for more than 40km; this percentage decreases inland. These carbonate grains consist mainly of marine bioclastic fragments and calcareous ooids, and were derived from the floor of the Persian Gulf, which was exposed during low sea level of the last glacial period.