Mine Index Number: 10083003
| ISGS ID:
|
|
MSHA ID:
|
|
| MAS ID:
|
170690007
|
MRDS ID:
|
W062486
|
| Company Name:
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Ozark-Mahoning Company
|
| Mine/Site Name:
|
Knight Mine
|
| Active/Abandoned:
|
Unknown
|
| Start Date:
|
circa 1973
|
End Date:
|
Unknown
|
| Commodity Type:
|
Metallic, Non-Metallic
|
| Commodity:
|
Barite(Barytes), Fluorspar, Lead, Zinc
|
| Minerals Present:
|
Galena, Barite, Calcite, Fluorite
|
| Type of Mine:
|
Underground
|
| District:
|
Fluorspar District
|
Subdistrict:
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Rosiclare Subdistrict
|
| County:
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Hardin
|
| Section/Township/Range:
|
31(SWSENE)-12S-8E
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| Latitude,Longitude:
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37.42396,-88.36587
|
| Unit(s) Mined:
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Chesterian Series, Glen Dean Limestone, Renault Limestone
|
| Feature(s) Mined:
|
|
| MRDS Link:
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https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10083003
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| Mindat link:
|
|
Mine Data/Information
Mine Data
Overal depth: 36.58M
MINED BY SHRINKAGE METHODS. THE KNIGHT MINE DEVELOPS A SW EXTENSION OF THE EMPIRE VEIN. IN 1926 A VERTICAL SHAFT 60 FT DEEP WAS SUNK JUST TO THE WEST OF THE VEIN. FROM THE BOTTOM OF THE SHAFT A CROSS CUT WAS DRIVEN INTO THE VEIN. DEVELOPMENT REVEALED FLUORSPAR 2.4 TO 4 FT WIDE.
Ore Body Information
| Strike |
N25E
|
| Dip |
75W
|
| Thickness |
2.5M
|
| Depth to top |
30M
|
| Width |
195M
|
| Length |
1220M
|
| Area |
10HA
|
| Field |
Value
|
| Type of Orebody #1 |
FISSURE VEIN
|
| Shape of Orebody #1 |
IRREGULAR
|
| Type of Orebody #2 |
REPLACEMENT
|
| Shape of Orebody #2 |
TABULAR
|
| Primary mode of Origin |
HYDROTHERMAL
|
| Primary Ore Control |
FAULTING
|
| Secondary Ore Control |
FRACTURING
|
| Degree of Wallrock Alter. |
MODERATE
|
| Type of Wallrock Alter. #1 |
ADV ARGILLIC
|
| Strike And Dip |
N25E
|
| Avg. Thick. Unconsol. Mat. |
6
|
| Total Surface Area (HA) |
10
|
| Date of Last Modification |
830126
|
Production statistics
| Year
|
Description
|
| 1973
|
Crude Ore 109823 Mt Ore
|
| 1974
|
Crude Ore 106218 Mt Ore
|
| 1975
|
Crude Ore 71037 Mt Ore
|
| 1976
|
Crude Ore 285893 Mt Ore
|
| 1977
|
Crude Ore 275849 Mt Ore
|
| 1978
|
Crude Ore 235550 Mt Ore
|
| 1979
|
Crude Ore 257798 Mt Ore
|
PRODUCT OUTPUT FIGURES HAVE BEEN ROUNDED FROM PRECISE VALUES OF 16.1 MT ACID GR. CAF2, 644 KG ZN CONC, 58 KG PB CONC, 2.6 MT BASO4 CONC, AND 33.3 MT MET. CAF2
RESERVES REPORTED AS OF AUGUST 1981; JANUARY 1980 IN SITU RESERVES WOULD BE 79,400 MT. .
Workings at the site
| Type of workings |
Underground
|
| Overall depth |
226M
|
| Field |
Value
|
| MAS Development Schedule # |
1
|
| Mining Record # |
1
|
| Status of Mining Method |
ESTIMATE
|
| Mining Method |
OVERHAND SHRINKAGE 10-67
|
| Swell Factor |
0.75
|
| Percent Recovery |
90
|
| Hardness of Rock |
HARDROCK FISSURED WITH MODERATE WATER
|
| Rock Characteristics |
ONE SYSTEM OF WEAKNESS PLANES
|
| Rock Support Chars. |
SUPPORTING
|
| Mine Support Chars. |
TIMBER
|
| Number of Shafts |
1
|
| 1st Condition of Workings |
OPEN
|
| Capacity |
179
|
| Capacity Units |
MT ORE/DAY
|
| Unit Production Cost |
9.16
|
| Units of Production |
$/MT ORE
|
| Operating Days per Year |
250
|
| Operating Shifts per Day |
1
|
| Year of Information |
1981
|
References
- BAILIE, H., E. POWELL, W. MELCHER, AND F. J. MYSLINSKI. FLUORSPAR MINING METHODS AND COSTS, OZARK-MAHONING CO., HARDIN COUNTY, ILL. BUMINES IC 7984, 1960, 33 PP.
|
- BASTIN, E.S., 1931, THE FLUORSPAR DEPOSITS OF HARDIN AND POPE COUNTIES, ILLINOIS: ILLINOIS STATE GEOLOGICAL SURVEY BULLETIN 58, 116 P.
|
- BRADBURY, J. C., G. C. FINGER, AND R. L. MAJOR. FLUORSPAR IN ILLINOIS. ILL. GEOLOGICAL SURVEY CIRCULAR 420, 1968, P. 13.
|
- FINGER, G. C., H. E. RISSER, AND J. C. BRADBURY. ILLINOIS FLUORSPAR. ILL. GEOLOGICAL SURVEY CIRCULAR 296, 1960,36 PP..
|
- GROGAN, R. M., AND J. C. BRADBURY. FLUORITE-ZINC-LEAD DEPOSITS OF THE ILLINOIS-KENTUCKY MINING DISTRICT. CH.IN ORE DEPOSITS OF THE UNITED STATES, 1933-1967, ED. BY JOHN D. RIDGE. AIME, NEW YORK, V. 1, 1ST ED., 1968,PP. 370-399.
|
- PINCKNEY, D. M. MINERAL RESOURCES OF THE ILLINOIS-KENTUCKY MINING DISTRICT. U. S. GEOLOGICAL SURVEY PROF. PAPER 970,1976, 15 PP.
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External Links
Mineral Resources Data System (MRDS) USGS Link
https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10083003https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10083003
Also referenced as 10144872
