Mine Index Number: 10218033
| ISGS ID:
|
9152
|
MSHA ID:
|
|
| MAS ID:
|
170850036
|
MRDS ID:
|
W800228
|
| Company Name:
|
Tri-State Zinc Inc., Heer (H.L.), Fox (Mrs. F.)
|
| Mine/Site Name:
|
Gray Mine
|
| Active/Abandoned:
|
Abandoned
|
| Start Date:
|
1944
|
End Date:
|
1949
|
| Commodity Type:
|
Metallic
|
| Commodity:
|
Cadmium, Lead, Zinc
|
| Minerals Present:
|
Dolomite, Calcite, Quartz, Sphalerite, Pyrite, Greenockite
|
| Type of Mine:
|
Underground
|
| District:
|
Upper Mississippi Valley
|
Subdistrict:
|
|
| County:
|
Jo Daviess
|
| Section/Township/Range:
|
10(N1/2NWNW)-27N-1E
|
| Latitude,Longitude:
|
42.3564099999998,-90.39481
|
| Unit(s) Mined:
|
Maquoketa Shale Group
|
| Feature(s) Mined:
|
|
| MRDS Link:
|
https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10218033
|
| Mindat link:
|
|
Discussion
GREENOCKITE WAS RECOGNIZED AT THIS MINE.
Ore body information
| Thickness |
15.24M
|
| Width |
60.96M
|
| Length |
396.24M
|
Mine Data/Information
Mine Data
Reserves and resources
| Type |
In-situ
|
| Estimate year |
1945
|
| Total resources |
217,000mt ore
|
| Commodity |
Subtype |
Grade |
units |
Group |
Importance |
Year
|
| Zinc |
Zn |
4.3 |
wt-pct |
Zinc |
Major |
1945
|
Workings at the site
| Type of workings |
Underground
|
| Name of workings |
SHAFT 1
|
| Overall depth |
59.44M
|
| Type of workings |
Underground
|
| Name of workings |
SHAFT 2
|
| Overall depth |
84.73M
|
ABOUT 2,800 GALLONS PER MINUTE WAS PUMPED IN 1945.
ECON.COM: A JOINT PROGRAM OF THE USGS AND USBM DEVELOPED AN ORE BODY 1,300 X 100-200 X 25-50 FT. AS OF 1946, ONLY A SMALL PART OF THE DEPOSIT HAD BEEN MINED.
References
- USBM MINERALS YEAR BOOK, 1959, JO DAVIESS CO., ILL
|
- BRADBURY,J.C., 1959, ILL.ST.GEOL. SURV. R.I. 210, PLATE 1
|
- HOLTS, STEPHEN P., DEC, 1948, BUMINES R.I. 4386, FIG 1.
|
- HEYL, A.V., AGNEW, A.F., LYONS, E.J., AND BEHRE, C.H., JR., 1959, THE GEOLOGY OF THE UPPER MISSISSIPPI VALLEY ZINC-LEAD DISTRICT: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 309, 310 P.
|
- ZINNER AND LINCOLN, 1946.
|
- LYONS, HEYL, AND AGNEW, 1949.
|
- WILLMAN, H.B., REYNOLDS, R.R., AND HERBERT, PAUL, JR., 1946, GEOLOGICAL ASPECTS OF PROSPECTING AND AREAS FOR PROSPECTING IN THE ZINC-LEAD DISTRICT OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY REPORT OF INVESTIGATIONS, NO. 116, 48 P.
|
- HEYL AND OTHERS, 1959, P. 180.
|
External Links
Mineral Resources Data System (MRDS) USGS Link
https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10218033
Also referenced as 10086334
