| Deposit ID | 10069397 |
|---|---|
| MRDS ID | W006912 |
| Record type | Site |
| Current site name | Big Four Group Fluorspar Mines |
| Alternate or previous names | Larue Fault System |
| Related records | 10267369 |
| Geographic coordinates: | -88.20003, 37.35007 (WGS84) |
|---|---|
| Elevation | 135 |
| Relative position | 11 KM. WEST OF MARION, KY. |
Political divisions (FIPS codes)
Crittenden(county)
Kentucky(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Salem(quadrangle 1:24,000 scale)
Paducah(quadrangle 1:100,000 scale)
Paducah(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lower Ohio-Bay(hydrologic unit)
Lower Ohio(hydrologic accounting unit)
Lower Ohio(hydrologic subregion)
Ohio(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Kentucky | Crittenden |
| Commodity | Importance |
|---|---|
| Fluorine-Fluorite Critical | Primary |
| Zinc Critical | Primary |
| Lead | Primary |
| Materials | Type of material |
|---|---|
| Anglesite | Ore |
| Galena | Ore |
| Pyromorphite | Ore |
| Smithsonite | Ore |
| Sphalerite | Ore |
| Calcite | Gangue |
| Marcasite | Gangue |
| Quartz | Gangue |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Rock unit name | Chester And Valmeyeran Series L.S., Shale, S.S |
| Rock description | Chester And Valmeyeran Series L.S., Shale, S.S |
| (1) | Rocks of Chesterian age, lower part |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | New Madrid Fault Zone, 38th Parallel Lineament. |
| Type of structure | Local |
| Structure description | Commodore Fault Bounds Big Four System On Ne End; Crystal - Holly Fault System Is On The Nw. |
| General form | LINEAR |
|---|---|
| Strike | N 50 DEG E |
| Dip | 80 SE |
| Length | 120M |
| Development status | Past Producer |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| Year of first production | 1874 |
| District name | Illinois - Kentucky Fluorspar Mines |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | U.S. Steel Corp. |
| Type of workings | Surface/Underground |
|---|---|
| Length | 200M |
| Overall depth | 49M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W006912 |
HARDIN, G.C., JR., AND TRACE, R.D., 1959, GEOLOGY AND FLUORSPAR DEPOSITS, BIG FOUR FAULT SYSTEM, CRITTENDEN CO., KY.: USGS BULL. 1042S
TRACE, R.D., 1974, ILLINOIS-KENTUCKY FLUORSPAR DISTRICT, IN - A SYMPOSIUM ON THE GEOLOGY OF FLUORSPAR: KENTUCKY GEOLOGICAL SURVEY SPECIAL PUB. 22 P. 58 - 76
1944 GEOLMAP HARDIN, G.C., JR. ET AL
TRACE, R.D., 1962, GEOLOGY OF THE SALEM QUADRANGLE, KENTUCKY: USGS GEOL. QUAD MAP GQ-206
1962 GEOLMAP TRACE, R.D.
HARDIN, G.C., JR., AND TRACE, R.D., 1959, USGS BULL. 1042S.
| Subject category | Comment text |
|---|---|
| Deposit | First Production Year: LA RUE MINE - 1874, BIG FOUR - 1898 |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1975 | Schruben, Paul G. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:
Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.