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Gigapans

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  1. Cross-laminated sandstone composed primarily of well-rounded, coarse sand grains from the base of the Ulveso Formation. The Ulveso Formation has been interpreted as an immature aeolian deposit with a proglacial subaerial origin. This sample may have been deposited during a period of dry, windy conditions preceding the ...

  2. Massive clast-poor diamictite from the Ulveso Formation in east Greenland. The sandy deposits in this otherwise massively bedded sample are interpreted as meltwater-washed horizons deposited in a fluctuating subglacial environment. The sandy horizon was probably originally deposited in cavities exposed by melting basal...