Showing posts with label tidal. Show all posts
Showing posts with label tidal. Show all posts

Tuesday, April 2, 2019

040219b


Tidal stromatolites, Pearson Cove Formation, Cambrian (more than half a billion years old), Drum Mountains, western Utah.

Thursday, March 21, 2019

032119c


Tidal deposit in Tombigbee Sand Member of Eutaw Formation, H&R Point, Montgomery Alabama.