Page:Report on the geology of the four counties, Union, Snyder, Mifflin and Juniata (IA reportongeologyo00dinv).pdf/112

84 F³. The new road which has been constructed over the eastern end of this ridge displays only outcrops of the Clinton measures, with dips on the north side of the anticlinal of from 10°-30°, The same rocks are well exposed in the railroad cuts facing the river, where the Iron sandstone forms the arch of the anticlinal with north and south dips of 10°–15°. This rock has been largely quarried at this point for culverts and bridge construction, and appears to make a handsome and durable stone for such purposes. It seems to be from 10′-20′ thick, and is underlaid by about 40′ of the lower Clinton shales.

North and up the river from the disappearance of the Iron sandstone on its northern dip, 300′ of olive and brown shale appears on a north dip of 15°-20°, overlaid by a thickness of 350′ of reddish-brown shale upon somewhat increased dips. The Ore Sandstone immediately overlies the latter. It is fossiliferous; about 30′ thick, and with a greyish-brown color, dipping N, 25°. There was no appearance of the Sand Vein fossil ore at this point, the Ore sandstone being immediately succeeded by the top limy members of the Clinton formation, showing a waved structure, but with an average northwest dip of from 30°-40°.

These same rocks are excellently exposed along the road leading west from the saw-mill at the river up White Deer Hole creek and at the first bend of the road going over the mountain on a N. 28° W. 30° dip. The Ore sandstone, rather shaly, also shows on this road upon a similar dip and about 25′ thick.

The Danville fossil ore bed, beneath this rock, was once opened here by Mr. Lawson of Milton; but no information could be obtained concerning its condition.

Mr. M. C. Tate has opened the same bed, ½ mile further west on property of Lawson & Farley, who shipped about 2000 tons from one opening to Danville in Montour county from a bed which is reported to show the following section, dipping 35°-40° N. W.: