The Unnamed Thorium Prospects is a thorium mine located in Gunnison county, Colorado at an elevation of 8,579 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: 8,579 Feet (2,615 Meters)
Commodity: Thorium
Lat, Long: 38.25694, -107.09028
Map: View on Google Maps
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Unnamed Thorium Prospects MRDS details
Site Name
Primary: Unnamed Thorium Prospects
Commodity
Primary: Thorium
Tertiary: Zinc
Tertiary: REE
Tertiary: Copper
Tertiary: Lead
Location
State: Colorado
County: Gunnison
District: White Earth (Powderhorn) 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
Deposit Type: Vein
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
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
Not available
Structure
Type: R
Description: Gunnison Uplift, San Juan Volcanic Field
Type: L
Description: Iron Hill Alkalic Complex, Cimarron Fault, Powderhorn Stock
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Thorite
Gangue: Specularite
Gangue: Sphalerite
Gangue: Jasper
Gangue: Quartz
Gangue: Barite
Gangue: Hematite
Gangue: Galena
Gangue: Rutile
Gangue: Pyrite
Gangue: Fluorite
Gangue: Goethite
Gangue: Chalcopyrite
Gangue: Magnetite
Comments
Comment (Deposit): THORIUM VEINS IN THIS AREA ARE ONE OF FOUR ENVIRONMENTS OF TH OCCURRENCE KNOWN IN THE 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. PINK TO RED ORTHOCLASE IS COMMON AS LARGE LATHS OR AS CLUSTERED SUBHEDRAL TO ANHEDRAL GRAINS. ADJACENT TO MOST VEINS, WALL ROCKS ARE PARTLY REPLACED BY ORTHOCLASE (FENITELIKE REPLACEMENT). VERY FINE-GRAINED THORITE IS INTERGROWN WITH FE OXIDES. SMALL PLUTON OF FINE- TO MEDIUM-GRAINED GRANITE HAS INTRUDED DUBOIS FELSITE ON WEST MARGIN OF IRON HILL COMPLEX. FOLIATION IN FELSITE TRENDS GENERALLY N 20 TO 30 E, 75 TO 90 SE. CLUSTER OF FOUR TH VEINS TREND N 85 W AND N 40 TO 55 E AND N 72 E.
Comment (Workings): THREE SURFACE PROSPECT PITS
Comment (Commodity): BASE METALS AND RARE EARTHS LISTED ABOVE ARE GENERAL OCCURRENCES REPORTED FOR TH VEINS IN AREA; ALL MAY NOT NECESSARILY OCCUR AT THIS SITE.
Comment (Location): ON LOW DIVIDE BETWEEN UNNAMED TRIBUTARY OF SMITH GULCH AND UNNAMED TRIBUTARY OF CEBOLLA CREEK 1.4 MILES SSE OF POWDERHORN AND 2.1 MILES WNW OF IRON HILL. ; INFO FROM LAND.ST :1976
Comment (Geology): OTHER MINERALS LISTED ABOVE ARE GENERAL OCCURRENCES REPORTED FOR TH VEINS IN AREA; ALL MAY NOT NECESSARILY OCCUR AT THIS SITE.
References
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.
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.
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