| Deposit ID | 10100256 |
|---|---|
| MRDS ID | W032460 |
| MAS/MILS ID | 560070380 |
| Record type | Deposit |
| Current site name | Rawlins Area |
| Alternate or previous names | Unnamed Mine, Rawlins Iron Deposits, Rawlins Paint Ore, Rawlins Hematite, Paint Mine |
| Geographic coordinates: | -107.235, 41.89972 (WGS84) |
|---|---|
| Location accuracy | 1000(meters) |
| Relative position | 9 MILES NORTH OF RAWLINS, Within The Sections Listed |
Political divisions (FIPS codes)
Carbon(county)
Wyoming(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Rawlins NW(quadrangle 1:24,000 scale)
Rawlins(quadrangle 1:100,000 scale)
Rawlins(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Great Divide Closed Basin(hydrologic unit)
Great Divide Closed Basin(hydrologic accounting unit)
Great Divide-Upper Green(hydrologic subregion)
Upper Colorado(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Wyoming | Carbon |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 021N | 087W | 04,05,08,09 | Wyoming | |
| 6th Principal | 022N | 087W | 31 | NE4 of SW4 | Wyoming |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Materials | Type of material |
|---|---|
| Hematite | Ore |
| Azurite | Ore |
| Quartz | Gangue |
| Calcite | Gangue |
| Chalcocite | Trace |
| Chrysocolla | Trace |
| Malachite | Trace |
| Olivenite | Trace |
| Brochantite | Unknown |
| Result | AN AVERAGE OF 9 ASSAYED CARLOADS OF ORE GAVE THE FOLLOWING RESULT: FE = 64.94%, SIO2 = 3.16%, P2O5 = 0.013%, SO3 = 0.011%, CAO = 1.46%, CO2 = 2.84% |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone | ||||
| Rock unit name | Madison Limestone | ||||
| Rock description | Madison Limestone | ||||
| |||||
| Host or associated | Host | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone | ||||||||||||
| Rock type qualifier | Cambrian sandstone | ||||||||||||
| |||||||||||||
| (1) | -107.235, 41.89972 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | E-Ne Striking Cross Faults |
| General form | POD-SHAPED MASSES AND LENSES |
|---|---|
| Length | 6.1M |
| Strike | N50E |
|---|---|
| Dip | 60N |
| Thickness | 4.8M |
| Length | 90M |
| Area | 64.7HA |
| Depth to top | 0M |
| Operation type | Surface-Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Rawlins Area |
|---|
| Type | Owner |
|---|---|
| Owner | Union Pacific Railroad |
| Interest | 100 |
| Home office | Nebraska |
| Year | 1976 |
| Year | 1890 |
|---|---|
| Period | pre 1890 |
| Material | 100,000 tons ore produced. Estimated 1,000,000 tons remaining. |
| Accuracy | Estimate |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W032460 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560070380 | newMRDS 10157228 merged with 10100256 (old MRDS W032460) and deleted. |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560070097 | newMRDS 10157055 merged with 10100256 (old MRDS W032460) and deleted. |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560070379 | newMRDS 10279319 merged with 10100256 (old MRDS W032460) and deleted |
Osterwald and others, 1966, Mineral Resources of Wyoming: Geological Survey of Wyoming Bull. 50 [revised ed.], p. 110-111
Osterwald and others, 1959, Mineral Resources of Wyoming: Geological Survey of Wyoming Bull. 50, p. 101.
Harrer, 1966, Wyoming Iron-ore deposits: USBM IC-8315, p. 19-20.
Barlow, J.A., 1953, Geology of the Rawlins Uplift, Carbon Co., Wy: Univ. of Wyoming PhD dissertation.
Lovering, 1929, The Rawlins, Shirley, and Seminoe iron-ore deposits, Carbon Co., Wy: USGS Bull. 811-D, p. 209-216.
Boyle, A.C., (1923), Report on the Rawlins, Wyoming iron ore deposits: unpublished typewritten report in Geol. Surv. Wyo. files, 14 p. (referenced in Bull. 50 and Bull. 811-D).
| Subject category | Comment text |
|---|---|
| Deposit | Merged record 10157055 (MAS 0560070097) listed Mn, Phosphorus-Phosphates, Silica, and Sulfur as trace commodities. There is no evidence these are anything but geochemical analyses reported in Bull. 50, p. 111. |
| General | Red paint from this deposit was known as the Rawlins Red and was used to paint the Brooklyn Bridge in 1883. |
| Deposit | This record is not a single site record, but it is a larger area of perhaps 6 sq. miles. In sec. 31 T21N, R87W and secs. 4, 5, 8, 9, T22N, R87W. |
| Deposit | Merged record 10157055 (MAS 0560070097) says "The ore occurs as a filling in solution chambers of a subsurface drainage system. Orientation of chambers is along NE trend. Ore would probably be best utilized as pigmentation agent or [dri]lling mud component. (Both are previous useages)." |
| Deposit | Deposits associated with cross faults contain malachite, azurite, etc. |
| Deposit | From Bull. 50, p. 110-111: "...the richest ore is found in pockets, pod-shaped masses, lenses, and otehr irregularly shaped masses iwthin a shaly limestone bed. Some of the masses were more than 20 ft in length. The ore replaced rock within a closely restricted stratigraphic horizon, and the masses are probably bedding plane deposits. The hematite is variable; some is massive, hard, and blue material, and some is partly granular and earthy." |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 1983-03-01 | Barari, Rachel A. | U.S. Geological Survey | |
| Reporter | 1983-11-18 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines | |
| Editor | 2008-10-27 | Wilson, Anna B. | U.S. Geological Survey | revised 21-jun-2011 |
| Reporter | 1983-12-01 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.