Huckleberry, Kilgore, and Blacktail

This is a tuff post. Get used to corny puns -they are a significant element in communication in all the best geologic social circles.

At the nose of this outcrop, the Huckleberry Ridge tuff is exposed in the upper layers (above the darker flow layer, the Kilgore vitrophyre)


The Kilgore tuff vitrophyre shows displacement along a fault; typical of caldera rim zones.


Spectacular columnar jointing of the very thick Blacktail tuff (though the picture didn't turn out quite as spectacular)


More faulting -this reminds me of a GEOLOGY 101 textbook figure.


These sites are along the dugway near Ririe Reservoir in Idaho.