Graded tuff deposits overlie a basalt flow. Can you find the camera lens cap on the basalt?
... of the Little Colorado River, near Leupp, Arizona.
Roadcut on highway U.S. 95 just south of Spokane River Bridge at Coeur d'Alene, ID
Svartifoss waterfall, Iceland
Pillow lavas exposed by quarrying operations.
Some basalt showing a well-developed weathering rind and columnar jointing.
A typical view along the seacliff stretch of the Roonivoolin Trail on the southern part of Rathlin Island.
Chalk topped by basalt!
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