By: mclapham
Image: Callan Bentley ⧉
License: Copyright, All Rights Reserved

Uploaded: 30 Mar 2020
Last Updated: 30 Mar 2020

1.05 gigapixels
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In the George Washington National Forest, south of Duncan Knob, there is a small outcrop of late-Ordovician aged Martinsburg Formation. These turbidites often show fine graded beds, like this one. This sample has been ground and polished to a level of 13000 grit. Contrast it with this sample, which saw only 800 polish: http://www.gigapan.com/gigapans/217603