Adair Group

The Adair Group is a thorium mine located in Gunnison county, Colorado at an elevation of 8,251 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

Satelite View

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Site Name

Primary: Adair Group

Commodity

Primary: Thorium
Tertiary: Lead
Tertiary: REE
Tertiary: Titanium, Metal

Location

State: Colorado
County: Gunnison
District: Goose Creek District

Land Status

Land ownership: Private
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: Gunnison Gold Belt, Iron Hill Alkalic Complex, Cimarron Fault, Tolvar Peak Stock

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: 0.04, 0.22
Analytical Data: 0.086, 0.48
Analytical Data: RADIATION COUNTS RANGE TO MAXIMUM 0.15 TO 2.0 MR/HR. OLSON AND WALLACE'S (1956) SAMPLE ANALYSES (EACH SET OF VALUES IS % EQUIV URANIUM AND AND CALCULATED THO2 CONTENT): 0.23, 1.3

Materials

Ore: Thorite
Ore: Galena
Gangue: Sphalerite
Gangue: Synchisite
Gangue: Pyrite
Gangue: Rutile
Gangue: Bastnaesite
Gangue: Ankerite
Gangue: Siderite
Gangue: Dolomite
Gangue: Quartz

Comments

Comment (Deposit): THORIUM VEINS IN THIS AREA ARE ONE OF FOUR ENVIROMMENTS 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 IRON HILL AND OF YOUNGER LATE PRECAMBRIAN OR CAMBRIAN CARBONATITES AT IRON HILL. FOLIATION OF DUBOIS GREENSTONE COUNTRY ROCK TRENDS GENERALLY NE IN DUBOIS MINE VICINITY; TRENDS CHANGE TO EAST-WEST AND WNW-ESE IN NW SEC. 01 WHERE SECTION IS CUT BY NW-TRENDING FAULTS. IN SEC. 02, TH VEINS TREND N 20 E AND N 72 E.

Comment (Workings): NUMEROUS SURFACE PROSPECT PITS

Comment (Location): GROUP COVERS PARTS OF TWO SECTIONS, POSSIBLY INCLUDING PORTIONS OF OLDER PATENTED CLAIM BLOCKS (MS 14471 HAS AN ADAIR CLAIM). ELEV AND LAT-LONG GIVEN ARE FOR GROUP OF TH PROSPECTS IN SE NW SE SEC. 02. ; INFO FROM LAND.ST :1975

References

Reference (Deposit): OLSON, J.C., AND HEDLUND, D.C., 1973, GEOLOGIC MAP OF THE GATEVIEW QUADRANGLE, GUNNISON COUNTY, COLORADO: USGS MAP GQ-1071.

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): OLSON, J.C., AND WALLACE, S.R., 1956, THORIUM AND RARE-EARTH MINERALS IN POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO: USGS BULL. 1027-0.

Reference (Deposit): NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 176-177.

Reference (Deposit): BURBANK, W.S., 1951, AEC PRELIM. RECON. REPT. D-224.

Colorado Mining Photos

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.