| Deposit ID | 10011022 |
|---|---|
| MRDS ID | D005164 |
| Record type | Site |
| Current site name | Armstrong Mine |
| Geographic coordinates: | -113.23247, 37.71386 (WGS84) |
|---|---|
| Elevation | 1829 |
| Relative position | 4,800 FEET EAST OF SWETT PEAK |
Political divisions (FIPS codes)
Iron(county)
Utah(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Cedar City NW(quadrangle 1:24,000 scale)
Cedar City(quadrangle 1:100,000 scale)
Cedar City(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Escalante Desert(hydrologic unit)
Escalante Desert-Sevier Lake(hydrologic accounting unit)
Escalante Desert-Sevier Lake(hydrologic subregion)
Great Basin(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Utah | Iron |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Salt Lake | 035S | 012W | 32 | Utah |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Materials | Type of material |
|---|---|
| Hematite | Ore |
| Limonite | Ore |
| Magnetite | Ore |
| Apatite | Gangue |
| Calcite | Gangue |
| Quartz | Gangue |
| Result | IRON 59.2% |
|---|
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||
| Rock unit name | Granite Mtn. Pluton | ||||||||
| Rock description | Granite Mtn. Pluton | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Rock unit name | Homestake Limestone Member Of Carmel Formation |
| Rock description | Homestake Limestone Member Of Carmel Formation |
| (1) | -113.23247, 37.71386 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Sevier Thrust System |
| Type of structure | Local |
| Structure description | Granite Mtn. Pluton |
| General form | TABULAR |
|---|---|
| Strike | N35 DEG E |
| Dip | 90 DEG |
| Thickness | 45.72M |
| Length | 304.8M |
| Width | 82.3M |
| Depth to top | 0M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Year of first production | 1948 |
| District name | Iron Springs |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Utah International, Inc. |
| Type of workings | Surface |
|---|---|
| Area | 64.752HA |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D005164 |
MACKIN, J. HOOVER, 1947, SOME STRUCTURAL FEATURES OF THE INTRUSIONS IN THE IRON SPRINGS DISTRICT, UTAH: UTAH GEOL. SOC. GUIDEBOOK TO THE GEOLOGY OF UTAH, NO. 2, 62P.
YOUNG, W.E., IRON DEPOSITS, IRON COUNTY, UTAH: U.S. BUREAU OF MINES REPORT OF INVESTIGATION 4076, 102P.
BULLOCK, KENNETH C., 1976, IRON DEPOSITS OF UTAH: UTAH GEOL. AND MINERAL SURVEY BULLETIN 88, P 23-63.
MACKIN, J. HOOVER AND ROWLEY, PETER D., 1976, GEOLOGIC MAP OF THE CEDAR CITY NW QUADRANGLE, IRON COUNTY, UTAH: U.S. GEOLOGICAL SURVEY MAP GQ-1295.
1947 DIREXPL U.S. BUREAU OF MINES, RI 4076
1947 RECON MACKIN, UTAH GEOL SOC. GUIDEBOOK #2
1954 GEOLMAP MACKIN, MINERAL INVESTIGATIONS MAP MF-14
1967 RECON BLANK AND MACKIN, PROF. PAPER 516-B
1976 GEOLMAP MACKIN AND ROWLEY, MAP GQ-1295
1976 RECON BULLOCK, UGMS BULLETIN 88
STEGEN, R. J. 1979, GEOLOGIST
| Subject category | Comment text |
|---|---|
| Deposit | ANGULAR BLOCKS OF QUARTZ MONZONITE ARE ASSOCIATED WITH FAULT BRECCIA. THE FAULT BRECCIA IS IMPREGNATED WITH MAGNETITE AND DOUBTLESS SERVED AS A CONDUIT OR FEEDER FOR THE ARMSTRONG ORE BODY. THE LITTLE ALLIE, ARMSTRONG AND LINDSAY ORE BODIES FORM A MORE OR LESS CONTINUOUS ORE ZONE PERHAPS SEPERATED BY FAULTS. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV |
| Deposit | LENS-SHAPED ORE BODY AT SURFACE, NARROWING BELOW SURFACE AND EXTENDING DOWNWARD ALONG FAULT ZONE TO AN UNDETERMINED DEPTH. AT ABOUT 350 FEET THE ORE AVERAGES 40 FEET THICK AND BECOMES A BRECCIA FILLING AND REPLACEMENT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1979 | Stegan, Ralph J. | Bureau of Land Management |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.