Happy Friday! The last one of 2012, in fact! To celebrate, check out this monocline on the western flank of the Bighorn Range in the Rockies of Wyoming:
Click to enlarge
Annotated. Check out those fine hogbacks!
Previously, we also saw this same structure in this GigaPan:
The Bighorns have a special place in my heart as the destination of my first spring break field trip as a geology major. Still have a nice polished chunk of fault breccia from the bighorn dolomite, too:
http://www.flickr.com/photos/kuchtam/8317407961/
It’s from the eastern limb just off Hwy16. Which, BTW, is a rather toe-curling highway to navigate in a loaded 15-passenger van.
I’d never heard of hogbacks before – thanks for the new structure word!
It’s more of a geomorphology term – but you need tilted strata to make them happen.
First time I saw that I was with my parents on a trip to Yellowstone. My father was something of an amateur geologist and pointed the folding and some faults out to me. The second time I was with the IU geology field camp caravan through Shell Canyon on our way to Yellowstone and Cardwell. The next year I mapped an area south of Cody and later on I worked on the hydrodynamics of entrapment in the Muddy SS of the Powder River Basin. That part of Wyoming has always been special to me.