Petrology and The Grain Size Characters of the Pab Sandstone of Parts of the Loralai and Khuzdar Districts of Baluchistan
Abstract
Sandstone samples obtained from parts of the Pab Sandstone (Late Cretaceous) of Loralai and Khuzdar Districts were studied under polarizing microscope and classified as quartz arenite, lithic arenite and sub-lithic arenite which have been derived most probably from a mixed acid igneous and metamorphic terrain. On the basis of high maturity, subrounded to well-rounded nature of quartz grains, presence of calcareous fossil fragments and high values of sorting coefficient, it may be suggested that the formation may have been deposited in shallow marine (most probably beach) conditions.
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