By: magic-gigapans
Image: Jeffrey Rollins, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 29 Apr 2020
Last Updated: 4 Jun 2020

331 megapixels
33,636 x 9,836 pixels
112.1 in X 32.8 in at 300dpi

44.567758, -108.063045 - Facing Northwest The gently dipping Tensleep Sandstone exposed along the ridge of the Sheep Mountain Anticline display two major joint sets. These planes created along these fractures are vertical - perpendicular to the sandstone's bedding. One set is oriented W-E, while the other is oriented NW-SE. Geo-scientists can use the orientation of joints and fractures such as these in order to determine the direction and ages of the stresses that created them. A paper in the Journal of Structural Geology by Bellahsen et. al provides exactly that for fracture sets occuring on the northern portion of Sheep Mountain (Read it here - http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.92.6363&rep=rep1&type=pdf) - though no studies known to the author have investigated the mountains southern half.