The Dean Claims is a tungsten mine located in Pershing county, Nevada at an elevation of 4,600 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: 4,600 Feet (1,402 Meters)
Commodity: Tungsten
Lat, Long: 40.35, -118.82500
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Dean Claims MRDS details
Site Name
Primary: Dean Claims
Secondary: Porter-May Property
Commodity
Primary: Tungsten
Location
State: Nevada
County: Pershing
District: Seven Troughs 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
Discovery Year: 1971
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains
Mineral Deposit Model
Model Name: W skarn
Orebody
Form: TABULAR, PINCH AND SWELL
Structure
Not available
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic
Analytical Data
Analytical Data: SAMPLE 2938 OF VEINS WITHSULFIDE MATERIAL CONTAINS 5 % FE, 0.5 % MG, 1 % CA, 0.07 % TI, 500 PPM MN, 7 PPM AG, 3000 PPM AS, +2000 PPM B, 50 PPM BA, 7 PPM BE, 30 PPM BI, 7 PPM CO, 20 PPM CR, 150 PPM CU, 20 PPM NI, 200 PPM PB, 5 PPM SC, 20 PPM SN, 150 PPM SR, 50 PPM V, 200 PPM W, 10 PPM Y, 30 PPM ZR, 130 PPM ZN.
Materials
Ore: Scheelite
Gangue: Epidote
Gangue: Quartz
Gangue: Garnet
Comments
Comment (Geology): IN THE VEIN AREA SCHEELITE OCCURS IN BRECCIATED ZONES WITHIN THE VEINS AND ON THE VEIN MARGINS, USUALLY ASSOCIATED WITH MANGANESE AND LIMONITIC GOSSAN. THE VEINS STRIKE N 30 TO 50 DEGREES E AND RANGE FROM VERTICAL TO STEEPLY EAST IN DIP. VEIN AREA IS HIGHLY FRACTURED. THE VEINS PINCH AND SWELL ALONG BOTH STRIKE AND DIP RANGING FROM 2 INCHES TO 3 FEET IN THICKNESS. SCHEELITE CONTENT IS ERRATIC. IN THE "TACTITE" AREA IN THE NEXT CANYON SOUTH OF THE VEIN, SCHEELITE OCCURS IN A DISCONTINUOUS E-W STRIKING GARNET-EPIDOTE TACTITE ZONE, UP TO 6 FEET IN WIDTH.
Comment (Deposit): EXPLORATION WITHIN THE DEAN PROPERTY (1971-72, 1975) HAS BEEN CONCENTRATED IN TWO GENERAL AREAS. TO THE NORTH A SWARM OF QUARTZ VEINS CONTAINING ERRATIC CONCENTRATIONS OF SCHEELITE, AND TO THE SOUTH WORK WAS DONE ON A THIN, DOSCONTINUOUS TACTITE ZONE CONTAINING SMALL AMOUNTS OF DISSEMINATED SCHEELITE. VOLUME OR GRADE DOES NOT CONSTITUTE A MINEABLE OREBODY NOR SHOWS POTENTIAL FOR THE DEVELOPMENT OF SIZEABLE TUNGSTEN RESERVES ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV
Comment (Location): UTM APPROTIMATE
Comment (Development): EXPLORATION WAS DONE ON THE CLAIMS FOR TUNGSTEN, 1971-1972, 1975. 1971 EXPLORATION BY NL INDUSTRIES; 1972 BY UNION CARBIDE WHO DID SOME TRENCHING AND DRILLING. NO ACTIVITY IN 1985.
References
Reference (Deposit): TINGLEY, J.V., 1975, DEAN CLAIMS, SEVEN TROUGHS MINING DISTRICT, PERSHING COUNTY, NEVADA; UNPUBLISHED REPORT.
Reference (Deposit): STAGER, H.K., IN PREPARATION, NBMG BULLETIN ON TUNGSTEN IN NEVADA.
Reference (Deposit): QUADE, JACK, 7 JUN 85, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
