| Deposit ID | 10107262 |
|---|---|
| MRDS ID | W001394 |
| Record type | Site |
| Current site name | Empire Mine |
| Alternate or previous names | Palmer Operations |
| Related records | 10170458 |
| Geographic coordinates: | -87.60558, 46.45611 (WGS84) |
|---|---|
| Elevation | 396 |
| Relative position | NEAR TOWN OF PALMER. |
Political divisions (FIPS codes)
Marquette(county)
Michigan(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Palmer(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 |
|---|---|---|---|---|---|
| 47N | 26W | 19 | SW | Michigan |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Materials | Type of material |
|---|---|
| Magnetite | Ore |
| Chert | Gangue |
| Biotite | Gangue |
| Quartz | Gangue |
| Chlorite | Gangue |
| Olivine | Gangue |
| Pyrite | Gangue |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | |||
| Rock unit name | Siamo Slate | ||
| Rock description | Siamo Slate | ||
| |||
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | |||
| Rock unit name | Ajibik Quartzite | ||
| Rock description | Ajibik Quartzite | ||
| |||
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Chemical Sediment > Iron Formation | ||
| Rock unit name | Negaunee Iron-Formation | ||
| Rock description | Negaunee Iron-Formation | ||
| |||
| (1) | -87.60558, 46.45611 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Marquette syncline, about 33 miles long and open at the western end. Begin |
| Type of structure | Local |
| Structure description | Monoclinal fold dipping 35 deg. nw. |
| General form | TABULAR: MASSIVE |
|---|---|
| Strike | N20E |
| Dip | 37W |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| Year of first production | 1907 |
| District name | Marquette Iron District (Range) |
|---|
| Type | Owner |
|---|---|
| Owner | Cleveland-Cliffs |
| Type | Owner |
|---|---|
| Owner | Inland Steel et. al. |
| Type | Operator |
|---|---|
| Owner | Cleveland-Cliffs |
| Year | 1972 |
|---|---|
| Period | 1907-1972 |
| Material | ore Fe |
| Ore mined | 203200000mt |
| Accuracy | Accurate |
| Year | 1991 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Accuracy | Accurate | ||||||||||||||
| |||||||||||||||
| Year | 1992 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Accuracy | Accurate | ||||||||||||||
| |||||||||||||||
| Year | 1993 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Accuracy | Accurate | ||||||||||||||
| |||||||||||||||
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1989 | ||||||||||||||
| Reserves | 300000000 | ||||||||||||||
| |||||||||||||||
| Type of workings | Surface |
|---|---|
| Overall length | 1200M |
| Overall width | 550M |
JAMES, H. L., 1955, ZONES OF REG. METAMORPHISM. IN THE PRECAMBRIAN OF NO. MICH. G. S. A. BULL., VOL. 66, P. 1455 - 1488.
LAKE SUPERIOR IRON ORE ASSOC., 1938, LAKE SUPERIOR IRON ORES.
LAKE SUPERIOR IRON ORE ASSOC., 1952, LAKE SUPERIOR IRON ORES.
VAN HISE AND BAYLEY, 1897, U. S. G. S. MONOGRAPH 28.
U.S. BUREAU OF MINES, 1954-1994, MINERALS YEARBOOK [1953-1993]: WASHINGTON, D.C., U. S. GOVERNMENT PRINTING OFFICE,
1969 GEOL MAP J. GAIR
LAKE SUPERIOR IRON ORES 1938 AND 1952, P. 106; P. 80. MINERALS YEARBOOKS FOR APPROPRIATE YEARS.
MINERALS YEARBOOK 1989, V. II.
| Subject category | Comment text |
|---|---|
| Deposit | ARCHEAN ROCKS OVERLAIN BY MARQUETTE RANGE SUPERGROUP ROCKS. ARCHEAN CRYSTALLINE ROCKS BLOCK FAULTED AND DIFFERENTIALLY RAISED 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 REGIONALLY THERMAL METAMORPHOSED CREATING METAMORPHIC FACIES OR NODES. THE MARQUETTE DISTRICT AFFECTED BY THE REPUBLIC NODE WHICH ZONES FROM CHLORITE TO SILLIMANITE EXCLUSIVE OF KYANITE ONLY. THE EMPIRE MINE IS IN THE CHLORITE ZONE NEAR BIOTITE ISOGRAD. (JAMES H. L. 1955 P. 1455-1488). |
| Deposit | AVERAGE DIMENSIONS OF MINERALIZATION (IN METERS): DEPTH 23, LENGTH 4023, WIDTH 2414, THICKNESS 564. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1972 | Cannon, Suzanne S. | U.S. Geological Survey | |
| Updater | 01-NOV-1995 | Sutphin, D.M. (Cannon, W.F.) | 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.