| Deposit ID | 10011119 |
|---|---|
| MRDS ID | D005361 |
| Record type | Site |
| Current site name | Twitchell Ore Body |
| Related records | 10202961 |
| Geographic coordinates: | -113.24747, 37.72997 (WGS84) |
|---|---|
| Elevation | 1777 |
| Relative position | 6,400 FEET NORTH 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 | 30 | Utah |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Materials | Type of material |
|---|---|
| Hematite | Ore |
| Limonite | Ore |
| Magnetite | Ore |
| Calcite | Gangue |
| Quartz | Gangue |
| Result | IRON 35% |
|---|
| 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 > Clastic Sedimentary Rock > Shale |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| Rock unit name | Iron Springs Formation |
| Rock description | Iron Springs Formation |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate) |
| (1) | -113.24747, 37.72997 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Sevier Thrust System |
| Type of structure | Local |
| Structure description | Clive Fault, Granite Mtn Intrusion |
| General form | IRREGULAR |
|---|---|
| Strike | N65 DEG E |
| Dip | 75 DEG N |
| Length | 196.6M |
| Width | 13.72M |
| Depth to top | 6.1M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Iron Springs |
|---|
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | Utah International, Inc. |
| Type | Owner |
|---|---|
| Owner | James D. Murphy |
| Type of workings | Surface |
|---|---|
| Area | 16.188HA |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D005361 |
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 O., 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, MINERALS INVESTIGATIONS MAP MF-14
1967 RECON BLANK AND MACKIN, PROF. PAPER 516-B
1976 GEOLMAP MACKIN AND ROWLEY, MAP GQ-1295
1976 RECON BULLOCK, UTAH GEOL. AND MINERAL SURVEY BULLETIN 88
STEGEN, R.J., 1979, UGMS ON SITE INVESTIGATIONS
| Subject category | Comment text |
|---|---|
| Deposit | ORE BODY IS NON-OUTCROPPING AND OCCURS ALONG THE CLIVE FAULT WHICH BROUGHT THE IRON SPRINGS FORMATION IN FAULT CONTACT WITH QUARTZ MONZONITE PORPHYRY. |
| 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.