UNUSUAL SOLUTION(?) CAVITIES IN THE MANNING CANYON SHALE NEAR FAIRFIELD, UTAH
One bed of the Manning Canyon shale in Manning Canyon, Utah, contains numerous elongate cavities, rectangular in cross section, all oriented down dip. The cavities contain a small amount of residue consisting of fine-grained iron-stained quartz. The solution of carbonate veins is postulated as the origin of the cavities.