147

severe folding. If it were considered advisable to mine the
upper bench separately, the 5-inch sandstone parting between }
the two benches would make a satisfactory floor.

Figure (0)
Geological Survey, Canada.

Figure 22. (a) Sketch of northwest wall of crosscut in vertical Wilson
seam, showing faulted sandstone parting 4 to 6 inches thick.
(b) Sketch of southeast wall showing same fault. This wall is
2% feet distant from the one sketched in Figure 22a.

In No. 2 opening the seam is cut off by a fault at the end of
the drift; but an apparently complete section in the shaft gave
9 feet 5 inches in the seam, with a total thickness of coal of 6
feet 2 inches.