Photos of Unconformities
Unconformities speak to great lengths of geologic time in the rock record because they are depositional surfaces between rocks of different ages --and so represent periods of missing rock record.

Cambrian Flathead Sandstone unconformably overlying Precambrian gneiss. Teton Range, Wyoming.

Click on any image below to see a larger version and caption.

Angular Unconformity, Scotland.	Nonconformity, Grand Canyon, AZ.	Angular Unconformity, Grand Canyon.
Disconformity. Approx 1 meter across.	Angular unconformity, Olympic Coast, WA.	Nonconformity, SW Montana
Angular unconformity -New York	Angular Unconformity, Tacoma, WA.	Buttress Unconformity, N. Arizona.

For more photos of angular unconformities, go to the geology photo search page and type in "unconformity". More than 30 images will come up!