Mine Index 0877 Consol Energy, Inc., Rend Lake Mine

Mine Index Number: 0877

Company Name:	Consol Energy, Inc.
Mine Name:	Rend Lake Mine
Start Date:	1967	End Date:	2002
Type of Mine:	Underground
Total acres shown:	9,845
Acres after map date:		General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type	County	Township-Range	Section	Part Section

Main production shaft

Jefferson

4S 2E

30

SE NE SW

Air, man and material shaft

Jefferson

4S 2E

30

NW SE SW

Geology

		Thickness (ft)
Seam	Depth (ft)	Min	Max	Ave	Mining Method

Herrin

733

7.0-9.0

LW

Geological Problems Reported

Faults were noted, with 3 to 13 feet displacement. The mine had a wet area that was delineated by the company by a “drip line” on their mine maps. Some saline water came from layers above the shale and dripped down the pillars into the mine. Another source of water was probably Rend Lake, as one of the test holes for the mine, drilled in 1918 and later submerged, penetrated one area noted for water problems. In other areas, water was said to seep up from the floor. The roof was a weak gray shale that came down readily, with a silty gray shale above that. Roof falls were more common near the top of seam undulations. A large roll was noted that crossed three entries. Sandstone-filled rolls were seen in this mine. One such roll cut out 5 feet of coal, and a different roll cut out 2 feet of coal and was 6 feet wide. However, most rolls were not persistent. The seam contained pyrite along cleat fillings and in en echelon fractures. Some pyrite occurred as thin laminations, with pyrite-filled “goat beards” above and below the laminations. (In this mine, “goat beards” was used for bundles of extension fractures.) When using the continuous mining machine, the company attempted to keep a 7-foot mining height, which sometimes involved leaving 1 foot of bottom coal and some top coal. The bottom coal was left because of the water, which would have turned the floor into mud and created a difficult surface for the machines. Some areas of the mine had split coal. The largest split was in the upper part of the seam, and was 0.1 to 0.4 feet thick.

Production

Company

Mine Name

Date

Production (tons)

Inland Steel Coal Company (add)	Inland (add)	1967-1985	33,621,654

Consolidation Coal Company (add)	Rend Lake (add)	1986-1998	37,500,415

Consol Energy, Inc. (add)	Rend Lake (add)	1999-2002	10,134,144

Total Production: 81,256,213

Production Notes

Coal Report production (if available)

Sources of Data

Source Map

Map Date

Original Scale

Digitized Scale

Map Type

Company, 6-355

1-1-2003

1:12000

1:12000

Final

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation, depth.

Directory of Illinois Coal Mines (Jefferson County) - Mine names, mine index, ownership, years of operation.

Mine notes (Jefferson County) - Mine type, shaft locations, seam, thickness, geologic problems.

Company map, Coal Section files, 6-355 - Shaft locations, mine outline, mining method.