| Deposit ID | 10013180 |
|---|---|
| MRDS ID | D009328 |
| Record type | Site |
| Current site name | Mary L. Group |
| Alternate or previous names | Mary L. 1-6 Claims |
| Related records | 10215342 |
| Geographic coordinates: | -105.52475, 38.58279 (WGS84) |
|---|---|
| Elevation | 2499 |
| Relative position | 9.5 MILES N 51 W OF PARKDALE |
Political divisions (FIPS codes)
Fremont(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Hall Gulch(quadrangle 1:24,000 scale)
Pikes Peak(quadrangle 1:100,000 scale)
Pueblo(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Arkansas Headwaters(hydrologic unit)
Upper Arkansas(hydrologic accounting unit)
Upper Arkansas(hydrologic subregion)
Arkansas-White-Red(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Colorado | Fremont |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 017S | 073W | 13,14 | SW OF SW OF SW OF NW (13); SE OF SE OF SE OF NE (14) | Colorado |
| Commodity | Importance |
|---|---|
| Uranium | Primary |
| Materials | Type of material |
|---|---|
| Coffinite | Ore |
| Torbernite | Ore |
| Uraninite | Ore |
| Calcite | Gangue |
| Gypsum | Gangue |
| Hematite | Gangue |
| Limonite | Gangue |
| Pyrite | Gangue |
| Result | DISEQUILIBRIUM RATIOS ON ORE SAMPLES GENERALLY FAVOR CHEMICAL U308 |
|---|
| Model code | 204 |
|---|---|
| USGS model code | 30c |
| Deposit model name | Sandstone U |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||||||||
| Rock unit name | Wall Mountain Tuff Was Probable Principal Uranium Source | ||||||||
| Rock description | Wall Mountain Tuff Was Probable Principal Uranium Source | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| (1) | -105.52475, 38.58279 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Thirty Nine Mile Volcanic Field, Currant Creek Basin |
| Type of structure | Local |
| Structure description | Echo Park Graben, Paleovalleys; North-South Trending Reverse Fault Places Precambrian Granite And Schist Against Tertiary Sandstones, Limiting Ore Body On East. Fault Strikes N 35-45 W, Dips 40 Ne; Numerous Small Faults And Fractures Increased Permeability Of Sediments |
| General form | TABULAR, PODS, LENTICULAR BODIES |
|---|---|
| Thickness | 12.19M |
| Length | 231.65M |
| Depth to top | 8M |
| Depth to bottom | 24.38M |
| Operation type | Surface-Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1954 |
| Year of first production | 1955 |
| District name | Tallahassee Creek |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | John T. Fontecchio, E.J. Smaller |
| First year | 1980 |
| Year | 1962 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1955-1962 | ||||||||||||||
| Material | Ore | ||||||||||||||
| Ore mined | 2179mt | ||||||||||||||
| Accuracy | Accurate | ||||||||||||||
| Description | Cp_Grade: ^0.24% U308 | ||||||||||||||
| |||||||||||||||
| Type of workings | Unknown |
|---|---|
| Area | 0.149HA |
| Overall depth | 15.24M |
| Overall length | 51.82M |
| Overall width | 30.48M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D009328 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0804300041 |
EPIS, R.C., WOBUS, R.A. AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, FREMONT AND PARK COUNTIES, COLORADO: USGS MAP I-1195, 1:62,500.
SIMON, M.R., 1956, URANIUM DEPOSITS OF CENTRAL AND SOUTH-CENTRAL COLORADO, IN GUIDEBOOK TO THE GEOLOGY OF THE RATON BASIN, COLORADO: ROCKY MOUNTAIN ASSOCIATION OF GEOLOGISTS GUIDEBOOK, P. 84.
BABCOCK, J.A., 1980, TALLAHASSEE CREEK URANIUM DEPOSITS: DENVER REGIONAL EXPLORATION GEOLOGISTS SOCIETY GUIDEBOOK, P. 15-31.
MACPHERSON, B.A., 1959, GEOLOGY AND URANIUM DEPOSITS OF THE TALLAHASSEE CREEK DISTRICT, FREMONT COUNTY, COLORADO: US ATOMIC ENERGY COMMISSION RME-1083, 39 P.
NELSON-MOORE AND OTHERS, 1978
| Subject category | Comment text |
|---|---|
| Deposit | THE DEPOSIT IS RELATIVELY FLAT-LYING WITH LOCAL THICKENING AND THINNING. THE UNDERLYING GRANITE IS MINERALIZED BUT DOES NOT CONTAIN KNOWN ORE. PART OF THE ORE BODY DESCRIBED ABOVE MAY HAVE BEEN MINED AS THE SMALLER AND JOAN 2 MINES, WHICH ADJOIN THIS PROPERTY |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1982 | Collins, Donna B. | Colorado Geological Survey | |
| Updater | 14-JUN-2004 | Keller, John W. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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