Glaciations In The Arabian Peninsula
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Glaciations affected the Arabian Peninsula three times. This was during the Late Ordovician, the Late Carboniferous-Early Permian, and the Pleistocene. Recorded evidence of Paleozoic glaciations in Arabia, includes tillites, striated pavements and gravels, erratic boulders, dropstones,' and varves. The presence of Pleistocene glacial activity is based on the occurrence of polygonal cracks similar to those found in the present tundra and subarctic regions, in sandstones and pyroclastics in the mountainous regions of the Yemen Arab Republic. The occurrence of Late Paleozoic glaciations in this part of Asia helps to complete the picture of Gondwana glaciations.