Mine Index 0917   Robertson and Associates, Inc.,   Eads Mine

From ILMINES WIKI
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INTERPRETING A MINE SUMMARY SHEET
Unlocated Mines In: Jefferson unlocated
County: Jefferson
Quadrangle: Bluford
Spring Garden
Dahlgren
County Coal Data: Jefferson
Shown On Map: Yes
Unlocated: No
MSHA ID:

Mine Index Number: 0917

Company Name: Robertson and Associates, Inc.
Mine Name: Eads Mine
Start Date: 1970 End Date: 1979
Type of Mine: Surface
Total acres shown: 2,622
Acres after map date: General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type County Township-Range Section Part Section
Tipple Jefferson 4S 4E 9 NE SW NE

Geology

Thickness (ft)
Seam Depth (ft) Min Max Ave Mining Method
Opdyke 20-40 1.5-2.1 Surface

Geological Problems Reported

An asymmetrical anticline in the coal was visible in the floor of a pit visited in 1977. One side climbed steeply while the other side was a gentle climb. According to mine personnel, this was a fairly common feature, with no preferred orientation. The coal often thickened (up to 4 feet) in these features, which were up to 6 feet high. There were no apparent faults or slickenslides in the coal, although the overlying shale showed slickensides. Pyrite and calcite were present on vertical fracture facings.

Production

Company Mine Name Date Production (tons)
Eads Coal Company Eads 1970-1974 3,087,531
Robertson and Associates, Inc. Eads 1974-1979 2,148,426
Total Production: 5,235,957

Production Notes

Coal Report production (if available)

Sources of Data

Source Map Map Date Original Scale Digitized Scale Map Type
ISGS map library, 4103.J41 i5.1-12 7-17-1978 1:12000 1:12000 Not final
NAIP digital ortho-photo quadrangle 2015 1:6000 1:6000 Secondary source

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation.
Directory of Illinois Coal Mines (Jefferson County) - Mine names, mine index, ownership, years of operation.
Mine notes (Jefferson County) - Mine type, mine location, seam, depth, thickness.
Company map, ISGS map library, 4103.J41 i5.1-12 - Mine location, mine outline, mining method.
National Agriculture Imagery Program map, digital ortho-photo quadrangle map - Mine outline.

Mine Notes

Mine Images

Photographs

Notes