| Deposit ID | 10107762 |
|---|---|
| MRDS ID | D001896 |
| MAS/MILS ID | 560070203 |
| Record type | Site |
| Current site name | Platt Mine |
| Alternate or previous names | R. Platte Property, Platte Mine, Ralph Platte, Cox |
| Included sites | Big Creek Pegmatite Area |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -106.48611, 41.11833 (WGS84) |
| Location accuracy | 10(meters) |
| Relative position | Location by GPS and verified on Google Earth. |
Political divisions (FIPS codes)
Carbon(county)
Wyoming(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Elkhorn Point(quadrangle 1:24,000 scale)
Saratoga(quadrangle 1:100,000 scale)
Rawlins(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper North Platte(hydrologic unit)
North Platte(hydrologic accounting unit)
North Platte(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management WY)
Bureau of Land Management WY BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Wyoming | Carbon |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 013N | 081W | 3 | C of S2 of S2 of SW4 | Wyoming |
| Commodity | Importance |
|---|---|
| Niobium (Columbium) Critical | Primary |
| Tantalum Critical | Primary |
| REE Critical | Primary |
| Uranium | Primary |
| Materials | Type of material |
|---|---|
| Columbite | Ore |
| Euxenite | Ore |
| Monazite | Ore |
| Allanite | Ore |
| Host or associated | Host | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||||||
| |||||||||
| Main Entrance (1) | -106.48611, 41.11833 |
|---|
| Length | 48.77M |
|---|---|
| Width | 21.34M |
| Depth to bottom | 22.86M |
| Operation type | Surface-Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Production years | 1957 |
| Type | Owner |
|---|---|
| Owner | R.E. and R.H. Platt (or Platte) |
| Year | 1973 |
| Type | Owner |
|---|---|
| Owner | RALPH PLATTE 9-73 |
| Year | 1973 |
| Year | 1957 |
|---|---|
| Material | Produced 3,115 lbs Euxenite valued at $5,297 in 1957. |
| Accuracy | Accurate |
| Year | 2010 |
|---|---|
| Material | 13 st X .9071847 = 12 mt Uranium ore. |
| Ore mined | 12mt |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D001896 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560070286 | =newMRDS 10254268, merged and deleted. |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560070203 | =newMRDS 10230498, merged and deleted. |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560070200 | =newMRDS 10181594, merged and deleted. |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560070409 | =newMRDS 10254630, merged and deleted. |
HOUSTON, R. S., 1961, THE BIG CREEK PEGMATITE AREA, CARBON COUNTY, WYOMING, GEOL. SURV. OF WYOMING PRELIM. REPORT NO. 1, 11 p.
Osterwald and others, 1966, Mineral Resources of Wyoming: Geological Survey of Wyoming Bulletin 50, 287 p.
HOUSTON, R. S., 1961, THE BIG CREEK PEGMATITE AREA, CARBON COUNTY, WYOMING, GEOL. SURV. OF WYOMING PRELIM. REPORT (unnumbered), 11 p.
Osterwald and others, 1966, Mineral Resources of Wyoming: Geological Survey of Wyoming Bulletin 50, p. 221.
Hausel and Sutherland, 2000, WSGS Bull. 71, p. 223.
Hausel, W.D., 1993, Guide to the geology, mining districts, and ghost towns of the Medicine Bow Mountains and Snowy Range Scenic Byway: Geological Survey of Wyoming Public Information Circular No. 32, 53 p.
AEC PRELIM. FIELD INV., AIRBORNE RA ANOMALIES
WYO.G.S.FOR MAS
Gregory, R.W., Jones, R.W., and Cottingham, K.D., 2010, Uranium map of Wyoming: Wyoming State Geological Survey Map Series 94, scale 1:500,000.
DMEA Docket No. 2584, 31 p., http://minerals.usgs.gov/dockets/scans/wy/dmea/2584_DMEA.pdf
| Subject category | Comment text |
|---|---|
| Deposit | "Niobium, yttrium, and uranium oxides occur in a pegmatite that has been mined since 1956. In addition to the ordinary pegmatite minerals, the following are known to occur: euxenite, monazite, columbite, and allanite. Euxenite is the most abundant rare earth mineral. The pegmatite, which is 160 ft. long by 70 ft. wide has been mined to a depth of 75 ft. In 1957, 3,115 pounds of euxenite valued at $5,297 were produced from this deposit." (Osterwald and others, 1966, p. 221) |
| Deposit | Location by GPS within 16 feet. Ground littered with muscovite. Mostly coarse grained pegmatite with abundant plagioclase, quartz, smoky quartz, biotite, and muscovite. Very small dense chonchoidal fractured chips, but unable to locate any in the rock matrix. Is this the monazite or euxenite? Old shaft has been completly encased/capped in concrete with a steel cage. Scintellometer reading at 1K = 15-18 cps (off-scale at 0.1 k). |
| Deposit | The euxite pegmatite at the Platt mine east of the Big Creek copper mine in SW section 3, T13N, R81W, produced some of the best prismatic, orthorhombic, euxenite specimens in the world. According to Raiph Platt, this pegmatite was at one time the best source of euxenite in the world. The euxenite is black, vitreous, opaque, and weakly radioactive." (Hausel and Sutherland, 2000, p. 223) |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 1975-04-01 | Parker, Raymond L. | U.S. Geological Survey | |
| Updater | 2010-03-01 | Wilson, Anna B. | U.S. Geological Survey | Updated after site visit Sept. 7, 2009. Revised 6/25/10. Revised again merging duplicate records on 4/27/11. And again 23-may-2011. And again 21-dec-2011. |
| Reporter | 1983-11-18 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines | MAS 0560070286 = newMRDS 10254268, MAS 0560070203 = newMRDS 10230498, MAS 0560070200 = newMRDS 10181594, MAS 0560070409 = newMRDS 10254630 |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.