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 overlying drift was a hard, gray, boulder-filled clay, and below that, in Will County, up to 20 feet of massive gray shale (Francis Creek). The Colchester Coal was relatively flat-lying, while the Cardiff Coal dipped markedly where the Francis Creek Shale (overlies Colchester Coal) thinned rapidly. The bottom 5 feet of the Francis Creek Shale contained concretions and siderite nodules up to 1 inch thick and 4 inches across. In Will County, rolls were a prominent feature of the Colchester Coal. The top of the seam may vary 8 feet vertically over 50 horizontal feet. The Colchester Coal also contained stony masses that may have been petrifactions of woody material. These stony masses ranged from 6 inches to 3 feet long, 3 inches to 2 feet wide, and 1 to 8 inches thick. They were present throughout the seam. The Houchin Creek and Cardiff Coals contained prominent cleat fillings of pyrite and calcite. Pyrite was also present as lenses that were up to 0.125 inches thick and extending laterally 2 feet across.
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