El Oso Mine

The El Oso Mine is a tungsten mine located in Maricopa county, Arizona.

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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

Name: El Oso Mine

State: Arizona

County: Maricopa

Elevation:

Primary Mineral: Tungsten

Lat, Long: 33.75361, -111.37694

Satelite image of the El Oso Mine

El Oso Mine MRDS details

Site Name

Primary: El Oso Mine
Secondary: New Discovery
Secondary: Harrison

Commodity

Primary: Tungsten
Tertiary: Molybdenum

Location

State: Arizona
County: Maricopa
District: Four Peaks District

Land Status

Land ownership: National Forest
Administrative Organization: Tonto National Forest

Holdings

Workings

Type: Surface/Underground

Ownership

Owner Name: Marvin Harrison
Home Office: Of Fresno, Ca
Years: 1961 -

Production

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1941
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland

Mineral Deposit Model

Orebody

Form: LINEAR
Form: LINEAR

Structure

Type: L
Description: Granite Cut By A Mile Wide Belt Of Granite Porphyry. Fissures Stri King N-S, N20-25e, N45e, N65w

Alterations

Rocks

Name: Pegmatite
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Materials

Ore: Pyrite

Ore: Molybdenite

Ore: Wolframite

Ore: Scheelite

Gangue: Quartz

Gangue: Tourmaline

Gangue: Fluorite

Comments

Comment Type: Location	Comment: CLAIMS EXTEND INTO MARICOPA CO.
Comment Type: Commodity	Comment: TUNGSTEN MINERALS NOT CONCENTRATED SUFFICIENTLY TO CONSTITUTE ORE EXCEPT IN A FEW PLACES
Comment Type: Workings	Comment: 235 FT LONG ADIT WITH 200 FT OF CROSSCUTS. SEVERAL SHORT ADITS AN D SHALLOW SHAFTS, OPEN CUTS AND TRENCHES
Comment Type: Deposit	Comment: THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M002890 WITH RE CORD M030451 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEOR ORE, USGS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment Type: Production	Comment: ONLY RECORDED PRODUCTION IS 24 UNITS OF WO3 IN 1953 & 1954. OTHER UNRECORDED PRODUCTION WAS LESS THAN A FEW TONS OF HAND SORTED ORE
Comment Type: Development	Comment: 17 UNPATENTED CLAIMS
Comment Type: Deposit	Comment: 2 SETS OF VEINS; N PART N75W DIP N, 5 PART S24W DIP W. SOME VEINS HAVE BEEN TRACED FOR 2000 FT ALTHOUGH NOT ALL. MINERALIZED VEINS AS A WHOLE AVERAGE 6 IN. WIDE, WIDE SPOTS OR SHOOTS BEING 30 FT LONG, 5 FT WIDE

References

Reference Category: Deposit	Reference: WILSON, 1941, ABM BULL 148, P. 31.
Reference Category: Deposit	Reference: DALE, 1961, USBM IC 8078.
Reference Category: Deposit	Reference: ADMR FILE DATA.
Reference Category: Other Database	Reference: CIMRI
Reference Category: Production	Reference: DALE, 1961, P. 12