Glacial quartzite cobble, pre-Kansas till showing banding from its sedimentary origin

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Banding in quartzite clearly shows the origin of these stones. Fairly rare, rocks from the pre-Kansas till gives insight to ancient ice ages.

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Size: 5184px × 3456px
Location: Wilson, Minnesota, USA
Photo credit: © Lyroky / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: age, banding, black, cobble, deposition, erosion, geology, ice, kansas, pre, quartz, quartzite, rock, sample, sand, sedimentary, specimen, stone, transport