Karla Kay Mine

The Karla Kay Mine is a uranium, vanadium, and manganese mine located in Montezuma county, Colorado at an elevation of 5,879 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

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Site Name

Primary: Karla Kay Mine

Commodity

Primary: Uranium
Primary: Vanadium
Primary: Manganese

Location

State: Colorado
County: Montezuma
District: Mcelmo Creek (Ute Mountains) Area

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

Type: Underground

Ownership

Owner Name: Four Corners Uranium Co.
Home Office: Denver, Co.
Years: 1955 -

Production

Year: 1971
Time Period: -1971
Description: Cp_Grade: ^0.08% U308, 0.45% V205

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Stratiform
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Colorado Plateaus
Physiographic Section: Canyon Lands

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: Paradox Basin, Blanding Basin, Four Corners Platform, San Juan Basin

Type: L
Description: Mcelmo Anticline, Unnamed Syncline

Alterations

Not available

Rocks

Name: Conglomerate
Role: Host
Age Type: Host Rock
Age Young: Early Cretaceous

Analytical Data

Analytical Data: CONGLOMERATE SAMPLE FROM KARLA KAY MBR CONTAINED 0.007% EQUIV U308 (RADIOMETRIC), 0.012% U308 AND L.T. 0.1% V205 (CHEMICAL).
Analytical Data: MUDSTONE PEBBLE CONGLOMERATE SAMPLE FROM KARLA KAY MBR CONTAINED 0.016% EQUIV U308 (RADIOMETRIC), 0.019% U308 AND 0.32% V205 (CHEMICAL)
Analytical Data: SANDSTONE SAMPLE FROM KARLA KAY MBR CONTAINED 0.004% EQUIV U308 (RADIOMETRIC)
Analytical Data: BACKGROUND RADIATION 0.004 MR/HR, RANGE 0.016 TO 0.02 MR/HR. ORE GRADES 0.08% U308, 0.45% V205. GREEN MUDSTONE SAMPLE FROM BRUSHY BASIN MBR CONTAINED L.T. 0.001% EQUIV U308 (RADIOMETRIC)

Materials

Ore: Carnotite
Gangue: Gypsum
Gangue: Limonite
Gangue: Pyrolusite

Comments

Comment (Deposit): DEPOSIT LIES NORTH OF UNNAMED SYNCLINE ON SW FLANK OF MCELMO DOME. LENTIL OF MUDSTONE CONGLOMERATE CONTAINING TREE MOLDS AND FEW CRABONIZED TREE REMNANTS FILLS CHANNEL CUT INTO BENTONITIC MUDSTONE OF BRUSHY BASIN MEMBER OF MORRISON FM AND UNDERLIES FINE- TO MEDIUM-GRAINED, PORRLY SORTED, QUARTZ SANDSTONE WITH SPARSE CHERT PEBBLES THAT UNDERLIES MAIN LENS OF KARLA KAY SHOESTRING CONGLOMERATE SYSTEM. HIGHEST RADIOACTIVITY ASSOCIATED WITH CARBONIZED PLANT DEBRIS AT TOP OF MUDSTONE CONGLOMERATE LENTIL; CARNOTITE WEAKLY DISSEMINATED AND FORMS COATING ON MUDSTONE PEBBLES.

Comment (Workings): ONE TUNNEL DRIVEN ENE FOR 25 FT TO FACE OF EAST DRIFT. AT 10 FT FROM PORTAL, 15-FT DRIFT DRIVEN SOUTH AND 25-FT DRIFT DRIVEN NORTH AND NE.

References

Reference (Deposit): EKREN, E.B., AND HOUSER, F.N., 1965, GEOLOGY AND PETROLOGY OF THE UTE MOUNTAINS AREA, COLORADO: USGS PROF. PAPER 481, P. 64-66.

Reference (Deposit): NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 282.

Reference (Deposit): EKREN, E.B., AND HOUSER, F.N., 1959, PRELIMINARY GEOLOGIC MAP OF THE MOQUI SE QUADRANGLE, MONTEZUMA COUNTY, COLORADO: USGS MAP MF-221.

Reference (Production): NELSON-MOORE AND OTHERS, 1978, P. 282.

Colorado Mining Photos

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