Pages for logged out editors learn more
You do not have permission to edit this page, for the following reason:
The action you have requested is limited to users in the group: Users.
Save page Show preview Show changes Cancel
Verified Coordinates: Latitude, Longitude (i.e 38.077,-89.030)
Add another
Add Location
Add Geology
The cap rock was limestone that ranged from 6 to 24 inches thick. Black shale (12 to 14 inches thick) lay between the limestone and the coal. The lower 2 to 3 inches was similar to draw slate, but stayed up better, adhering to and not distinguishable from the black shale. When it did come down, the black shale was exposed to moisture-laden air, and would come down easily. The roof contained many irregularly-shaped concretions, which would come down, bringing roof down with it. The roof conditions were not good in general. Horsebacks were present, perhaps as commonly as every 25 feet, but they were generally less than 4 inches thick. Persistent partings were noted in the coal. Clay partings were 8, 14, and 22 inches below the top of the seam. A pyrite parting was seen 35 inches below the top, which in some places was enlarged to a pyrite ball up to 6 inches thick. Pyrite was also present as nodules and discontinuous lenses, most commonly near horsebacks.
Add Production
Add Source
Add Bibliography
tooltip If you need to start a line using an asterisk add <code>< nowiki ></code> before the asterisk and <code>< /nowiki > </code>after to get an Asterisk (remove the space in the code
Add Notes