File:Omar to Omar (9645928025).jpg

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Down south, there are unnamed rocks with holes in them. Up here, there are rocks called 'omarolluks' with carbonate concretions in them. Put the two together and you have the Omar. Omars are glacier tracking rocks from a Proterozoic greywacke called the Omarolluk Formation. Pix was taken in the Belcher Islands of Hudson Bay, which is the place these hole-y rocks were carried away by many episodes of continental glaciation. en.wikipedia.org/wiki/Omarolluk 

"Omars" are rocks with round calcareous concretions that have been weathered out -after- being rolled away by glaciation. They have been redistributed time and again by continental ice sheets and can be found all over central and eastern North America.

www.uwgb.edu/dutchs/Petrology/Leaverite-SedFeat.HTM

and scroll halfway down, there's lots of neat stuff on this webpage
Date
Source Omar to Omar
Author Mike Beauregard from Nunavut, Canada
Camera location56° 17′ 20.79″ N, 78° 48′ 09.72″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This image was originally posted to Flickr by subarcticmike at https://www.flickr.com/photos/31856336@N03/9645928025. It was reviewed on 31 August 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

31 August 2014

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current22:02, 31 August 2014Thumbnail for version as of 22:02, 31 August 20142,400 × 1,797 (1.8 MB)Geo Swan (talk | contribs)Transferred from Flickr via Flickr2commons

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