Welcome to DU!
The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards.
Join the community:
Create a free account
Support DU (and get rid of ads!):
Become a Star Member
Latest Breaking News
Editorials & Other Articles
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
The Geologic Oddity in Arizona; The Wave
One of the most unique and sought after geologic formations to visit in Ariona is known simply as "The Wave". It consists of more than 100 feet thick of numerous alternating layers of sandstone emplaced during a time period when the American southwest was the site of a dune field larger than seen in the modern Saharan Desert. This video describes how this unique rock formation came to be and what exactly cross-bedding is.
4 replies
= new reply since forum marked as read
= new reply since forum marked as read
