| Deposit ID | 10082738 |
|---|---|
| MRDS ID | W062088 |
| Record type | Site |
| Current site name | Gardner-Mackinaw Mine |
| Geographic coordinates: | -87.39084, 46.25028 (WGS84) |
|---|
Political divisions (FIPS codes)
Marquette(county)
Michigan(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Gwinn(quadrangle 1:24,000 scale)
Gwinn(quadrangle 1:100,000 scale)
Marquette(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Escanaba(hydrologic unit)
Northwestern Lake Michigan(hydrologic accounting unit)
Northwestern Lake Michigan(hydrologic subregion)
Great Lakes(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Michigan | Marquette |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| T45N | R25W | 35 | Michigan | ||
| T44N | R25W | 2 | Michigan |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Materials | Type of material |
|---|---|
| Hematite | Ore |
| Magnetite | Ore |
| Goethite | Ore |
| Quartz | Gangue |
| Model code | 241 |
|---|---|
| USGS model code | 34a |
| Deposit model name | Superior Fe (BC name is Lake Superior & Rapitan types iron-formation) |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Chemical Sediment > Iron Formation | ||
| Rock unit name | Michigamme Iron-Formation | ||
| Rock description | Michigamme Iron-Formation | ||
| |||
| (1) | -87.39084, 46.25028 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Westward plunging synclinorium open at western end; regional trends are eas |
| General form | STRATABOUND |
|---|
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1844 |
| Year of first production | 1919 |
| Year of last production | 1941 |
| Production years | SHIPPED ORE EVERY YEAR FROM 1919-1941, EXCEPT FOR 1924-1926 AND 1932. |
| District name | Marquette Iron District |
|---|
| Year | 1941 |
|---|---|
| Period | 1919-1941 |
| Material | ore Fe |
| Ore mined | 1347663mt |
| Accuracy | Accurate |
| Type of workings | Underground |
|---|---|
| Overall depth | 478.54M |
JAMES, H. L., 1955, ZONES REG. METAMORPHISM. IN N. MICHIGAN.: GEOLOGICAL SOCIETY OF AMERICAN BULLETIN, V. 66, P. 1455-1488.
THE LAKE SUPERIOR IRON ASSOC., 1938, LAKE SUPERIOR IRON ORES.
LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES: CLEVELAND, OHIO, 2D ED., 334 P.
GRATON-SALES VOL. A. I. M. E., THE MARQUETTE DISTRICT: ORE DEPOSITS OF THE U. S., 1933-1967, P. 508-517.
LAURA, D.K., 1981, THE EARLY PROTEROZOIC PRE-IRON FORMATION, MENOMINEE GROUP SILICICLASTIC SEDIMENTS OF THE SOUTHERN LAKE SUPERIOR REGION; EVIDENCE FOR SEDIMENTATION IN PLATFORM AND BASINAL SETTINGS: JOURNAL OF SEDIMENTARY PETROLOGY, V. 51, NO. 2, P. 397-414.
SIMS, P.K., 1990, GEOLOGIC MAP OF THE PRECAMBRIAN ROCKS OF IRON MOUNTAIN AND ESCANABA 1 DEGREE X 2 DEGREES QUADRANGLES, NORTHEASTERN WISCONSIN AND NORTHWESTERN MICHIGAN: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES, I-2056.
BOYUM, B.H. AND REED, R.C., 1988, MARQUETTE MINERAL DISTRICT OF MICHIGAN, MINING HISTORY AND GEOLOGY, IN SCHULZ, K.J., 34TH ANNUAL INSTITUTE ON LAKE SUPERIOR GEOLOGY FIELD TRIP GUIDEBOOKS, V. 34, PART 2, P. B-1-B-15.
BOYUM, B.H., 1988, THE ORIGIN AND EXTENT OF THE HARD AND SOFT IRON ORES OF THE MARQUETTE RANGE, MICHIGAN, IN KISVARSANYI, GEZA, AND GRANT, S.K., NORTH AMERICAN CONFERENCE ON TECTONIC CONTROL OF ORE DEPOSITS AND THE VERTICAL AND HORIZONTAL EXTENT OF ORE SYSTEMS, PROCEEDINGS VOLUME: UNIVERSITY OF MISSOURI, ROLLA, P. 301-311.
MOST ALL OF THIS DISTRICT HAS BEEN MAPPED AT 7 1/2 MINUTE QUADRANGLE SIZE. TOO MANY GEOLOGISTS HAVE BEEN INVOLVED TO MENTION INDIVIDUALLY. GAIR, J.E., 1975, BEDROCK GEOLOGY AND ORE DEPOSITS OF THE PALMER QUADRANGLE, MARQUETTE COUNTY, MICHIGAN: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 769, 159 P.
LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES: CLEVELAND, OHIO, 2D ED., 75-92 P.
| Subject category | Comment text |
|---|---|
| Deposit | LOWER PRECAMBRIAN 'W' (OR ARCHEAN) ROCKS OVERLAIN BY MIDDLE PRECAMBRIAN 'X' (OR MARQUETTE RANGE SUPERGROUP) ROCKS. LOWER PRECAMBRIAN W CRYSTALLINE ROCKS BLOCK FAULTED AND DIFFERENTIALLY RAISED AND LOWERED; FORMING TROUGHS. MIDDLE PRECAMBRIAN 'X' (OR MARQUETTE RANGE SUPERGROUP) ROCKS AS SEMI-CONSOLIDATED SEDIMENTS SLUMPED INTO THE TROUGHS. AT ABOUT THE SAME TIME ENTIRE AREA WAS REGIONALLY THERMALLY METAMORPHOSED, CREATING METAMORPHIC FACIES OR NODES. THE MARQUETTE DISTRICT AFFECTED BY THE REPUBLIC NODE, WHICH GRADES FROM CHLORITE TO SILLIMANITE ZONES, EXCLUSIVE OF KYANITE ONLY. SILLIMANITE ZONE IS IN VICINITY OF AND INCLUDES REPUBLIC TOWN AND REPUBLIC OPEN PIT. REST OF ZONED AREAS ARE REGULAR SHAPED, FAIRLY ROUND WITH SLIGHT FLATTENING TO THE NORTHEAST. (JAMES, H. L., 1955, P. 1455-1488) |
| Deposit | DESCRIPTIVE (CANNON, 1986) AND GRADE AND TONNAGE (MOSIER AND SINGER, 1986) DEPOSIT MODELS OF SUPERIOR FE ARE IN COX AND SINGER, 1986, MINERAL DEPOSIT MODELS: U.S. GEOLOGICAL SURVEY BULLETIN, 1693, P. 228-230. LARUE (1981) FOUND THAT CHEMICAL IRON SEDIMENTATION APPARENTLY TOOK PLACE WITH LITTLE REGARD TO BASINAL OR PLATFORM ENVIRONMENTS. BOTH ENVIRONMENTS SHOW PERIODS OF CHEMICAL-IRON SEDIMENTATION. HOWEVER, IN BOTH ENVIRONMENTS, DEPOSITION OF IRON WAS RESTRICTED TO PERIODS OF DETRITAL-SEDIMENT STARVATION. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1995 | Sutphin, D.M. (Cannon, W.F.) | U.S. Geological Survey | |
| Updater | 01-MAR-1997 | Sutphin, D.M. | U.S. Geological Survey | |
| Editor | 01-MAY-1997 | Mason Jr., G.T. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.