The Unnamed Thorium Prospects is a thorium mine located in Gunnison county, Colorado at an elevation of 8,241 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 8,241 Feet (2,512 Meters)
Commodity: Thorium
Lat, Long: 38.29111, -107.10472
Map: View on Google Maps
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Unnamed Thorium Prospects MRDS details
Site Name
Primary: Unnamed Thorium Prospects
Commodity
Primary: Thorium
Location
State: Colorado
County: Gunnison
District: Goose Creek District
Land Status
Land ownership: BLM Administrative Area
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: R
Description: Gunnison Uplift, San Juan Volcanic Field
Type: L
Description: Gunnison Gold Belt, Iron Hill Alkalic Complex, Tolvar Peak Stock
Alterations
Not available
Rocks
Name: Trachyte
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cambrian
Name: Trachyte
Role: Associated
Age Type: Associated Rock
Age Young: Late Cambrian
Name: Trachyte
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Thorite
Gangue: Orthoclase
Gangue: Hematite
Comments
Comment (Deposit): TRACHYTE DIKES IN THIS AREA ARE ONE OF FOUR ENVIRONMENTS OF TH OCCURRENCE KNOWN IN POWDERHORN-IRON HILL AREA AND ARE PROBABLY RELATED TO EMPLACEMENT OF LATE PRECAMBRIAN SYENITES NORTH AND WEST OF IRON HILL AND OF YOUNGER LATE PRECAMBRIAN OR CAMBRIAN CARBONATITES AT IRON HILL. DIKES FOLLOW LOCAL JOINTING IN COUNTRY ROCK AND ARE COMPOSED OF LATH-SHAPED ORTHOCLASE PHENOCRYSTS IN TRACHYTIC, APHANITIC GROUNDMASS OF ORTHOCLASE MICROLITES. RADIOACTIVITY IS CONCENTRATED IN HEMATITE PSEUDOMORPHS AFTER PYRITE. FOLIATION IN FELSITE/FELSITE PORPHYRY COUNTRY ROCK TRENDS GENERALLY N 15 TO 30 W, 85 NE TO 85 SW. TWO SETS OF VERTICAL JOINTS TREND N 87 W AND N 35 TO 45 W. TRACHYTE DIKE TRENDS N 83 E.
Comment (Workings): THREE SURFACE PROSPECT PITS
Comment (Location): ON LOW RIDGE NW OF SMALL UNNAMED TRIBUTARY GULCH OF CEBOLLA CREEK DIRECTLY ACROSS FROM CONFLUENCE OF POWDERHORN CREEK. ; INFO FROM LAND.ST :1976
References
Reference (Deposit): HEDLUND, D.C., AND OLSON, J.C., 1961, FOUR ENVIRONMENTS OF THORIUM-, NIOBIUM-, AND RARE-EARTH-BEARING MINERALS IN THE POWDERHORN DISTRICT OF SOUTHWESTERN COLORADO: USGS PROF. PAPER 424-B, P. B283-B286.
Reference (Deposit): OLSON, J.C., AND HEDLUND, D.C., 1981, ALKALIC ROCKS AND RESOURCES OF THORIUM AND ASSOCIATED ELEMENTS IN THE POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO: USGS PROF. PAPER 1049-C.
Reference (Deposit): HEDLUND, D.C., AND OLSON, J.C., 1975, GEOLOGIC MAP OF THE POWDERHORN QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1178.
Colorado Mining Photos
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