Frosted, relict beach sands in 90 m of water on part of the Newfoundland continental shelf have been identified by analysis of grain-size frequency distributions and surface textures. In this case, the common interpretation that frosted sands on the Atlantic continental shelf are indicative of aeolian deposition during periods of Pleistocene eustatic lowering of sea level would be incorrect. The results suggest that combined grain-size frequency distribution analysis and grain-surface texture analysis with a scanning electron microscope are probably necessary to properly evaluate the depositional environment of frosted grains.

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