Oil Sands of the McMurray Formation, NE Alberta. The core contains ~80% bitumen which is the glue that holds the sand together #unlithified http://pic.twitter.com/Y7GlwgnBHd
— Astrid Arts (@Arkose_Rocks) January 20, 2017
via Twitter https://twitter.com/Arkose_Rocks
January 21, 2017 at 04:23AM
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