Influence of sediment source on the shapes and surface textures of glacial quartz sand grains

A study of the shapes and surface textures of glacial quartz sand grains that were largely derived from sediment sources of different rock types was conducted in order to evaluate the influence of the sediment source on these textures. The results show that the roundness and surface textures of glacial quartz sand grains are largely dictated by their sources and that surface textures may not always be reliable indicators of ancient glacial deposits.