Page:Report on the geology of the four counties, Union, Snyder, Mifflin and Juniata (IA reportongeologyo00dinv).pdf/296

268 F³. taken to Logan furnace. In part of the mine a rotten brown sandstone, a few inches thick, corresponding to the Sand Rock was seen to occur between the ore and the Ore sandstone. Beneath the latter Mr. Phillips reports that he has found two seams of ore close together each about 3″ thick, which may correspond to the Danville beds.

This mine is 6½ miles from Logan, where, during the last season, the ore was laid down at a cost of $2.20 a ton, divided nearly equally between mining and hauling.

An analysis of the lump ore from the Phillips mine, made by R. H. Lee, Jr., gave:

The McKee mines near the Olive township line were alall [sic] abandoned about 2 years ago and were last operated for the Glamorgan Furnace Company, of Lewistown. A number of abandoned openings were seen on both sides of the Ore ridge. An old water level drift was driven eastward on the south outcrop, all the way to the Cuppels’ line, a distance of about 40 rods and pretty thoroughly stoped out. The north outcrop at this point furnished only hard ore and has therefore been worked to a very limited extent.

The ore bed is from 15″-18″ thick, occasionally containing a small band of slate or Jack near the bottom of the bed, which carries about 16 per cent. iron and 58 per cent. insoluble residue. The southeast dips in the Ore ridge here amount to about 45°, and the Sand Vein yields about 36 per cent. iron and 35 per cent. insoluble matter.

In the synclinal the dips are not over 25°, so that the two central outcrops are much further apart here than where Phillips works them further east. On the north side of the ridge the dip is about 45°, while the mountain outcrop inclines southwards at an angle of about 30°. The Ore sandstone here is from 15′-20′ thick.

Much information.is given by Mr. Dewees in Report F, Chapter VI, pp 59 et seq., concerning the various developments along this Ore ridge. He certainly had many opportunities of studying the ores and their associated rocks, for