By: magic-gigapans
Image: Callan Bentley, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 26 Mar 2020
Last Updated: 25 Jun 2020

982 megapixels
43,000 x 22,848 pixels
143.3 in X 76.2 in at 300dpi
7,356 pixels per inch

An interesting structure appears at the top of this sample: Is it a desiccation crack? A dewatering structure? Something else? Source and geologic context are unknown. The opposite (unpolished) side of this sample can be seen at: https://viewer.gigamacro.com/view/lKj7mQoG32OyiAvc