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

Uploaded: 10 Apr 2020
Last Updated: 26 May 2020

1.42 gigapixels
39,860 x 35,628 pixels
132.9 in X 118.8 in at 300dpi
6,350 pixels per inch

Bedding-perpendicular jointing makes a square "tile" that evidently saw repeated episodes of soaking by groundwater, as evidenced by the Liesegang banding in distinctive concentric ring patterns, increasingly circular toward the interior.